Peringkat Universitas Terbaik di Dunia

QS World University Rankings 2017-2018: Peringkat Universitas Terbaik di Dunia. Cek Posisi Perguruan Tinggi Indonesia!

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Tahun ini, kembali dirilis QS (Quackquarelli Symonds) World University Rankings 2017-2018. Daftar peringkat universitas terbaik di seluruh dunia ini banyak menjadi acuan, termasuk oleh perguruan tinggi di Indonesia.

Jadi, QS World University Rankings ini memberikan penilaian pada berbagai perguruan tinggi di dunia untuk menentukan rankingnya, dengan metode survei kepada akademisi dan pekerja profesional, serta meriset kampus. Komponen penilaiannya antara lain reputasi akademik, reputasi lulusan perguruan tinggi di dunia kerja, serta publikasi, riset dan jurnal yang dikeluarkan kampus. Nah, QS World University Rankings 2017-2018 mengeluarkan ranking perguruan tinggi secara keseluruhan dan juga peringkat berdasarkan bidang yang dipelajari.

Cek 10 besar perguruan tinggi terbaik QS World University Rankings 2017 berdasarkan bidang studi, QS World University Rankings 2018 secara keseluruhan, dan juga peringkat perguruan tinggi Indonesia berikut ini.

Bidang: Teknik dan Teknologi


(Teknik Sipil, Teknik Mesin, Teknik Elektro, Pertambangan, Ilmu Komputer, Teknologi Informasi, dll)

  1. Massacusetts Institute of Technology
  2. Standford University. AS
  3. University of Cambridge, Inggris
  4. Nanyang Technological University, Singapura
  5. ETH Zurich Federal Institute of Technology, Swiss
  6. Imperial College London, Inggris
  7. National University of Singapore
  8. University of California, Berkeley
  9. University of Oxford
  10. Tshingua University, China

215 Institut Teknologi Bandung‍
401-450 Universitas Gadjah Mada‍
401-450 Universitas Indonesia‍

Bidang: Seni dan Budaya


(Sejarah, Arkeologi, Seni, Desain, Arsitektur, Teologi, Sastra, Filsafat, Linguistik, Sejarah. dll)

  1. University of Oxford
  2. University of Cambridge
  3. Harvard University
  4. University of California, Berkeley
  5. Stanford University
  6. Yale University
  7. Princeton University
  8. University of California, Los Angeles UCLA
  9. Columbian University
  10. The Australian National University

Bidang: Ilmu Sosial dan Manajemen


(Komunikasi, Ekonomi, Komunikasi, Antropologi, Hukum, Politik, Pariwisata dan Perhotelan, dll)

  1. Harvard University
  2. London School of Economic and Political Science
  3. University of Oxford
  4. University of Cambridge
  5. Standford University
  6. Massacusetts Institute of Technology
  7. University of California, Berkeley
  8. National University of Singapore
  9. Yale University
  10. The University of Tokyo

207 Universitas Indonesia
293 Institut Teknologi Bandung
307 Universitas Gadjah Mada

Bidang: Kesehatan dan Life Science


(Kedokteran, Kedokteran Gigi, Farmasi, Psikologi, Biologi, Pertanian dan Kehutanan, dll)

  1. Harvard University, AS
  2. University of Cambridge, Inggris
  3. University of Oxford, Inggris
  4. Massacusetts Institute of Technology, AS
  5. Stanford University, AS
  6. John Hopkins, AS
  7. Karolinska Institutet, Swedia
  8. University of California, Los Angeles (UCLA), AS
  9. University of California, AS
  10. Yale University, AS

451-500 Universitas Indonesia

Bidang: Ilmu Pengetahuan Alam


(Matematika, Kimia, Fisika, Geografi, Ilmu Bumi dan Kelautan, dll)

  1. Massacusetts Institute of Technology, AS
  2. University of Cambridge, Inggris
  3. Harvard University, AS
  4. Standford University, AS (peringkat tiga bersama Harvard University)
  5. University of Oxford, Inggris
  6. ETH Zurich Federal Institute of Technology, Swiss
  7. University of California, Berkeley, AS
  8. California Institute of Technology, AS
  9. University of Tokyo, Jepang
  10. Imperial College London, Inggris

Ranking 10 Besar Perguruan Tinggi Dunia 2018 (Keseluruhan)


  1. Massacusetts Institute of Technology, AS
  2. Standford University. AS
  3. Harvard University, AS
  4. California Insitute of Technology, AS
  5. University of Cambridge, Inggris,
  6. University of Oxford, Inggris
  7. University College London. Inggris
  8. Imperial College London, Inggris
  9. University of Chicago, AS
  10. ETH Zurich Federal Institute of Technology, Swiss

Peringkat Perguruan Tinggi Indonesia di Dunia


277 Universitas Indonesia‍ (Peringkat 151-200 untuk Akuntansi dan Keuangan)
331 Institut Teknologi Bandung‍ (Peringkat 51-100 untuk Seni Rupa dan Desain)
401-410 Universitas Gadjah Mada‍ (Peringkat 51-100 untuk Seni/Performing Arts)
701-750 Universitas Airlangga‍
751-800 Institut Pertanian Bogor‍
801-1000 Universitas Diponegoro‍
801-1000 Institut Teknologi Sepuluh Nopember‍
801-1000 Universitas Muhammadiyah Surakarta‍
801-1000 Universitas Brawijaya‍

Ada 9 perguruan tinggi di Indonesia yang masuk daftar QS World University Rankings 2017-2018, yaitu 8 PTN dan satu perguruan tinggi swasta. Sayangnya peringkat Indonesia jauh di bawah, kalah dengan perguruan tinggi dari Singapura, Jepang, dan China yang masuk 10 besar. Bahkan, Malaysia menempatkan perguruan tingginya di atas Indonesia.

Posisi top 10 sendiri didominasi perguruan tinggi Amerika Serikat dan Inggris yang wara-wiri di 10 besar. Swiss, Swedia, dan Australia juga menempatkan kampus mereka di sepuluh besar berdasarkan bidang perkuliahan.

Universitas Indonesia yang tahun lalu di peringkaat 325, naik 48 peringkat ke posisi 277, sedangkan untuk Asia UI menduduki ranking 67. Ada yang berpendapat bahwa perguruan tinggi di Indonesia sulit meraih ranking yang bagus karena karya akademik, seperti riset dan publikasi yang dihasilkan masih sedikit.

Di sisi lain, QS World University Rankings 2017-2018 nggak bisa dijadikan patokan absolut kualitas suatu universitas. Tentunya tiap metode riset memiliki kelebihan dan kekurangan. Namun ranking ini bisa dijadikan salah satu parameter pencapaian kampus.

Source: youthmanual

10 Universitas Terbaik di Dunia 2018

by hotcourses 26 Juni 2017

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Setiap Tahun, QS (Quackquarelli Symonds) menilai universitas-universitas di seluruh dunia, kemudian merilis daftar peringkat berdasarkan reputasi akademi, reputasi alumni, kulitas tenaga pengajar dan penampilan internasional. Tahun ini, hampir 1,000 universitas dari 84 negara dinilai, dan berikut adalah 10 universitas dengan nilai teratas:

1. MASSACHUSETTS INSTITUTE OF TECHNOLOGY (MIT)

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Selama 6 tahun berturut-turut, MIT menempati peringkat teratas sebagai universitas terbaik di dunia. Universitas Amerika ini memperoleh nilai yang luar biasa dalam peringkat kali ini, dan merupakan satu-satunya universitas di dunia yang diberikan nilai 5+ oleh QS. Berikut adalah perolehan nilai MIT:

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MIT main campus seen from Vassar Street, as The Great Dome is visible in the distance and the Stata Center is at right

2. STANFORD UNIVERSITY

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Stanford University yang berlokasi di Silicon Valley ini telah 2 tahun berturut-turut menggeser Harvard ke peringkat no. 3. Menurut table penilaian, semua indikator Standford sebenarnya tidak kalah dari MIT, tapi sayangnya jumlah mahasiswa internasionalnya kalah jauh jika dibandingkan dengan MIT:

myhc_22324 STANFORD UNIVERSITY

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View of the main quadrangle of Stanford University with Memorial Church in the center background from across the grass covered Oval.

 

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An aerial photograph of the center of the Stanford University campus in 2008.

3. HARVARD UNIVERSITY

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Walau telah turun ke ranking 3 sejak 2 tahun berturut-turut, reputasi akademik dan prospek kerja lulusan dari universitas ini tetap mendapat skor 100.

Opera Snapshot_2017-12-30_141543_en.wikipedia.org Harvard_Wreath_Logo_1.svg

Rummell,_Richard_Harvard_University

Richard Rummell’s 1906 watercolor landscape view, facing northeast.

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Harvard Yard as seen from Holyoke Center

4. CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH)

Caltech_Logo.svg

Caltech yang 2 tahun sebelumnya berada di peringkat ke-5 tahun ini berhasil naik 1 peringkat. Mungkin ini adalah berkat perolehan nilai yang tinggi dalam kategori rasio dosen: mahasiswa dan publikasi dari tenaga pengajar.

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Caltech entrance at 1200 E California Blvd. On the left is East Norman Bridge Laboratory of Physics and on the right is the Alfred Sloan Laboratory of Mathematics and Physics.

5. UNIVERSITY OF CAMBRIDGE

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Berbeda dengan 4 peringkat sebelumnya, peringkat ke-5 ditempati oleh universitas Inggris: University of Cambridge. Walau posisi universitas ini terus bergeser turun dari peringkat ke-3 di tahun 2016 ke peringkat ke-4 di tahun 2017, dan kemudian ke peringkat ke-5 di tahun 2018, reputasi akademik dan prospek kerja lulusan masih tetap mendapatkan nilai sempurna.

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Great Court of King’s College

6. UNIVERSITY OF OXFORD

University_of_Oxford.svg

Tidak ada perubahan dari University of Oxford yang selama 3 tahun berturut-turut masih menempati posisi ke-6. Walau demikian, jumlah mahasiswa dan dosen internasional di universitas ini lebih banyak dari University of Cambridge.

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todays-programme-elizabeth_ramey_oxford-university_getty

7. UCL (UNIVERSITY COLLEGE LONDON)

University_College_London_logo.svg

UCL logo since 2005

Walau masih berada di posisi yang sama seperti 2 tahun sebelumnya, UCL tahun ini berhasil meraih peringkat No.1 untuk kualitas pendidikan dan pelatihan.  UCL adalah salah satu universitas yang memiliki keberagaman mahasiswa tertinggi di dunia.

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Wilkins_Building_1,_UCL,_London_-_Diliff

8. IMPERIAL COLLEGE LONDON

Imperial_College_London_monotone_logo

Naik 1 peringkat dari tahun sebelumnya, Imperial College London adalah universitas yang terkenal akan jurusan sains, teknik dan bisnis.

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9. UNIVERSITY OF CHICAGO

640px-University_of_Chicago_logo.svg

Setelah 2 tahun berturut-turut menempati peringkat ke-10, tahun ini University of Chicago berhasil naik 1 peringkat. Reputasi akademik dari universitas ini meraih skor yang nyaris sempurna, yaitu 99.9.

Opera Snapshot_2017-12-30_145832_en.wikipedia.org University_of_Chicago_Coat_of_arms

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10. ETH ZURICH (SWISS FEDERAL INSTITUTE OF TECHNOLOGY)

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Akhirnya ada universitas di luar Amerika dan Inggris yang mendominasi peringkat 10 besar, yaitu ETH Zurich. Hanya saja, universitas ini turun 2 peringkat dari tahun lalu, mungkin karena rasio mahasiswa:dosen yang belum ideal.

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ETH Hönggerberg with the new HIT building

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ETH Hönggerberg from the south, looking at the five “fingers” of the HCI and behind the high HPP building.

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ETH Zurich at night.

How Much Does It Really Cost to Build a WordPress Website?

Last updated on December 19th, 2017 by Editorial Staff

One of the questions we often get asked is: how much does it cost to build a WordPress website? While the core WordPress software is free, the cost of a WordPress site depends entirely on your budget and goals. In this article, we will break it all down to answer the ultimate question: How much does it really cost to build a WordPress website? We’ll also show you how to avoid overspending and minimize cost when building a website.

costofwebsite

What Do You Need to Build a WordPress Website?


WordPress is free for anyone to download and use. It is an open source software which gives you freedom to install it on any kind of website.

So if WordPress is free, then where is the cost coming from?

The cost of a WordPress site can be broken down into following categories:

  • WordPress Hosting
  • Domain Name
  • Design
  • Plugins and Extensions (Apps)

To create a Self Hosted WordPress site, you need web hosting to store your files. Every website on the internet needs hosting. This is your website’s home on the internet.

Next, you will need a Domain Name. This will be your website’s address on the internet, and this is what your users will type in the browser to reach your website (example, wpbeginner dot com or google dot com).

With WordPress, there are tons of free website templates available that you can use. However if you want something more advanced / custom, then you can purchase a premium template or have one custom made which will raise the cost.

There are 40,000+ free plugins for WordPress. These are apps and extensions for your websites. Think features like contact form, gallery, etc.

So while you can build a website with just the hosting and domain cost, based on your situation, you may end up paying for additional tools and services. That’s why it’s often confusing for people to find out the real cost of a WordPress website.

Let us walk you through the real cost of building a WordPress site.

Estimating The Real Cost of Building a WordPress Site


calculatingcost

Depending on your needs, your cost to start a WordPress website can range from $100 to $500 to $3000, to even as high as $30,000 or more.

It’s important to know what type of website you are building, and what you’ll need for it because that will directly affect your cost.

But don’t worry, we’ll show you how to avoid a financial disaster and make the best decisions.

For the sake of this article, let’s break down websites into different budget categories:

  • Building a WordPress website (low budget)
  • Building a WordPress website (with more features)
  • Building a WordPress eCommerce website
  • Building a custom WordPress website

Now let’s see how much each of these projects cost and how you can avoid spending any more than necessary.

What’s the Cost of a WordPress Website (Low Budget)?


lowbudgetwebsite

You can build a fully functional WordPress website for yourself and keep your costs under $100. Here is the cost break down of a WordPress website on low budget.

First, you will need a domain name and web hosting.

A domain name typically costs $14.99 / year, and web hosting normally costs $7.99 / month.

Thankfully, Bluehost, an official WordPress recommended hosting provider, has agreed to offer our users a free domain name and over 60% off on web hosting.

For more hosting recommendations check out our guide on how to choose the best WordPress hosting.

Next, you will need to install WordPress on your hosting account. See our step by step guide on how to start a WordPress blog for complete instructions.

Once you have installed WordPress, you can choose a design for your website using a free template.

There are thousands of free and professionally designed templates available for WordPress that you can install. See our expert-pick of 43 beautiful free WordPress blog themes for some examples.

Once you have chosen a WordPress template, follow the instructions in our step by step guide on how to install a WordPress theme.

Next, you may want to add certain features to your website like adding a contact form, a photo gallery, a slider, etc. Don’t worry there are more than 40,000 WordPress plugins available that will help you do that.

Plugins are like apps or extensions for your WordPress site. See our step by step guide on how to install a WordPress plugin.

Below is our selection of the essentials WordPress plugins that you should install on your website. All of them are available for free.

Features

  • WPForms Lite – Add contact forms to your WordPress site
  • Envira Gallery Lite – Add beautiful image galleries to your site
  • Soliloquy Lite – Add beautiful image sliders in WordPress

Website Optimization

  • Yoast SEO – Improve your WordPress SEO and get more traffic from Google
  • MonsterInsights (Free) – Helps you track visitor stats using Google Analytics
  • WP Super Cache – Improves your website’s speed by adding cache

Website Security

  • UpdraftPlus – Free WordPress backup plugin
  • Sucuri – Free website malware scanner

There are many more free WordPress plugins to add different features and extend your WordPress site. See our best WordPress plugins category where we have reviewed hundreds of WordPress plugins.

Total Cost of website: $46 – $100 per year

What’s the Cost of a WordPress Site (with More Features)?


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We always recommend our users to start small and then add more features as their website grow. This way you will not be paying for anything that you don’t really need.
As you add more features to your website, your website cost will start to increase.
You can continue to use Bluehost for WordPress hosting to keep the cost low and get a free domain name.

However since you will be adding more features to your website, it may make sense to get a more powerful hosting configuration like SiteGround’s GoGeek plan. This will cost you a little more, but it comes with premium features like staging, faster performance, and can handle up to 100,000 visitors per month.

You can use our SiteGround coupon to get 60% off for the first year of your hosting.

You can also go for a premium WordPress template for your site. Unlike free WordPress templates, these templates come with extra features and priority support. See our expert selection of 40 best responsive WordPress themes for some great premium templates that you can use.

For more website features you need to use a combination of free + paid plugin addons.

Here are some essential premium WordPress plugins and extensions that you’ll need as your site grows:

Features

  • WPForms (Pro) – Adds a drag drop form builder to your WordPress site
  • Envira Gallery – WordPress image gallery plugin for photography or portfolio websites
  • Beaver Builder – Adds a drag and drop WordPress page builder

Marketing

  • Constant Contact – One of the best Email marketing services
  • OptinMonster – Converts abandoning website visitors into subscribers. Lead generation for WordPress.
  • MonsterInsights Pro – See how visitors find and use your website.

Security

  • BackupBuddy – For automatic WordPress backups
  • Sucuri Firewall – Website firewall and malware protection

There are many more WordPress plugins and services that you can add. Each paid service or addon that you add will increase the cost of your WordPress site.

Total cost of website: Depending on the premium WordPress plugins and services that you add, it can be anywhere between $500 and $1000 per year.

What’s the Cost of a WordPress Ecommerce Website?


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WordPress powers millions of eCommerce websites around the world.

The cost of building a WordPress eCommerce website can be significantly higher, but we will show you how to build a WordPress eCommerce website while avoiding potential losses and overspending.

In addition to hosting and domain, your eCommerce site will also need an SSL certificate which costs around $69.99/year. SSL is required to securely transfer customer data such as credit card information, usernames, passwords, etc.

We recommend using Bluehost Ecommerce plan. It gives you a free domain and SSL certificate, plus discount on hosting.

After that, you need to select a WordPress eCommerce plugin.

There are several eCommerce plugins for WordPress, but none comes even close to WooCommerce. It is the most popular WordPress eCommerce plugin that allows you to build robust online stores to sell your products/services.

Next, you will need to install WordPress and WooCommerce on your website. We have a step by step guide on how to start an online store.

While WooCommerce is free, you will need to use paid addons for additional features. The cost of your website will go up depending on how many addons you need to add on your website.

Once you are up and running, you will need to choose a WooCommerce ready WordPress template for your site. There are several paid and free WordPress templates with full WooCommerce support. Choosing a premium or paid template gives you access to support and extra features.

We have a list of the best free WooCommerce addons, but depending on your needs, you may have to use some paid extensions as well.

Here are some other paid services that you’ll need on your eCommerce website.

Features

  • WPForms – To add customer inquiries and feedback forms
  • Beaver Builder – To create stunning landing pages using a drag and drop page builder
  • Soliloquy – Create beautiful product sliders with their WooCommerce addon

Marketing

  • OptinMonster – Convert visitors into customers with this powerful lead generation tool
  • Constant Contact – powerful email marketing service
  • MonsterInsights – Ecommerce tracking with real time stats using Google Analytics

Security

  • BackupBuddy – Automatic WordPress backups
  • Sucuri – Website firewall and malware scanner

Remember the best way to keep your costs down is by starting small and adding extensions and services as your business grows.

Total cost of building a WordPress eCommerce website: $1000 – $3000. It could be higher depending on how many paid addons and services you add to your site.

What’s the Cost of a Custom WordPress Site?


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A custom WordPress site is when you hire a WordPress developer to create a unique design and build specific features for it.

Usually well established, large to medium sized businesses choose this route.

To support a custom WordPress site, you may also want to go for a managed WordPress hosting provider. This is WordPress centric hosting environment, with managed updates, premium support, strict security, and developer friendly tools.

In addition to your hosting and domain name, you will also be paying the developer that’s building your website.

The cost of a custom website depends on your requirements, budget, and the rates of the developer or agency you hire.

A standard custom WordPress theme alone can cost you upto $5000. More robust WordPress sites with specific custom features can cost up to $15000 or even higher.

Update: Since several of you asked for a more details on this section, we have created a comprehensive guide on how much does a custom WordPress theme cost, and tips on how you can save money.

How to Avoid Overpaying and Cut Down Spending?


We always recommend our users to start small and then scale their WordPress site as it grows. In many cases you don’t need all the premium features that you see on many well established websites in your industry.

Keep in mind that those websites had a head start, and it likely took them time to figure out how to manage costs and grow their business.

You can start with a budget website using free plugins and template. Once you start getting visitors, you can consider adding premium features like a premium template, email marketing, paid backup plugin, website firewall and so on.

Same goes for your eCommerce website. Start with bare minimum and then as you start selling, you will find out exactly the tools that will help you and your customers.

Look for best WordPress deals and coupons to get additional discounts whenever you can.

Even for robust WordPress sites you don’t always need to hire a developer. We have step by step tutorials on how to create different types of WordPress websites such as:

  • How to create a business directory with WordPress
  • How to create an online review website with WordPress
  • How to build an auction website using WordPress
  • How to build a coupons website with WordPress
  • How to create a multilingual website with WordPress
  • How to create a job board with WordPress
  • How to create a questions & answers website with WordPress
  • How to create a portfolio website with WordPress
  • How to create a wiki knowledge base website using WordPress

We hope this article answered your questions about how much does it cost to build a WordPress website. You may also want to see our list of 25 legit ways to make money online blogging with WordPress.

If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.

Mother Teresa

From Wikipedia, the free encyclopedia

Mother Teresa, known in the Catholic Church as Saint Teresa of Calcutta (born Anjezë Gonxhe Bojaxhiu; Albanian: [aˈɲɛzə ˈɡɔndʒɛ bɔjaˈdʒiu]; 26 August 1910 – 5 September 1997), was an Albanian-Indian Roman Catholic nun and missionary. She was born in Skopje (now the capital of the Republic of Macedonia), then part of the Kosovo Vilayet of the Ottoman Empire. After living in Macedonia for eighteen years she moved to Ireland and then to India, where she lived for most of her life.

In 1950 Teresa founded the Missionaries of Charity, a Roman Catholic religious congregation which had over 4,500 sisters and was active in 133 countries in 2012. The congregation manages homes for people dying of HIV/AIDS, leprosy and tuberculosis; soup kitchens; dispensaries and mobile clinics; children’s- and family-counselling programmes; orphanages, and schools. Members, who take vows of chastity, poverty, and obedience, also profess a fourth vow: to give “wholehearted free service to the poorest of the poor”.

Teresa received a number of honours, including the 1962 Ramon Magsaysay Peace Prize and 1979 Nobel Peace Prize. She was canonised (recognised by the church as a saint) on 4 September 2016, and the anniversary of her death (5 September) is her feast day.

A controversial figure during her life and after her death, Teresa was admired by many for her charitable work. She was praised and criticised for her opposition to abortion, and criticised for poor conditions in her houses for the dying. Her authorised biography was written by Navin Chawla and published in 1992, and she has been the subject of films and other books. On September 6, 2017, Teresa was named co-patron of the Roman Catholic Archdiocese of Calcutta, alongside St. Francis Xavier.

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Contents
1 Early life
2 Missionaries of Charity
3 International charity
4 Declining health and death
5 Recognition and reception
5.1 India
5.2 Elsewhere
6 Criticism
7 Spiritual life
8 Canonisation
8.1 Miracle and beatification
8.2 Canonisation
9 Co-Patron of Calcutta Archdiocese
10 Legacy and depictions in popular culture
10.1 Commemorations
10.2 Film and literature
10.2.1 Documentaries and books
10.2.2 Dramatic films and television
11 See also
12 References
13 Sources
14 External links

Early Life


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Memorial House of Mother Teresa in her native Skopje

Teresa was born Anjezë Gonxhe (or Gonxha) Bojaxhiu (Albanian: [aˈɲɛzə ˈɡɔndʒɛ bɔjaˈdʒiu]; Anjezë is a cognate of “Agnes”; Gonxhe means “rosebud” or “little flower” in Albanian) on 26 August 1910 into a Kosovar Albanian family in Skopje (now the capital of the Republic of Macedonia), Ottoman Empire. She was baptized in Skopje, the day after her birth. She later considered 27 August, the day she was baptised, her “true birthday”.

She was the youngest child of Nikollë and Dranafile Bojaxhiu (Bernai). Her father, who was involved in Albanian-community politics in Macedonia, died in 1919 when she was eight years old. He may have been from Prizren, Kosovo, and her mother may have been from a village near Gjakova.

According to a biography by Joan Graff Clucas, during her early years Teresa was fascinated by stories of the lives of missionaries and their service in Bengal; by age 12, she was convinced that she should commit herself to religious life. Her resolve strengthened on 15 August 1928 as she prayed at the shrine of the Black Madonna of Vitina-Letnice, where she often went on pilgrimages.

Teresa left home in 1928 at age 18 to join the Sisters of Loreto at Loreto Abbey in Rathfarnham, Ireland, to learn English with the view of becoming a missionary; English was the language of instruction of the Sisters of Loreto in India. She never saw her mother or her sister again. Her family lived in Skopje until 1934, when they moved to Tirana.

She arrived in India in 1929 and began her novitiate in Darjeeling, in the lower Himalayas, where she learnt Bengali and taught at St. Teresa’s School near her convent. Teresa took her first religious vows on 24 May 1931. She chose to be named after Thérèse de Lisieux, the patron saint of missionaries; because a nun in the convent had already chosen that name, Agnes opted for its Spanish spelling (Teresa).

Teresa took her solemn vows on 14 May 1937 while she was a teacher at the Loreto convent school in Entally, eastern Calcutta. She served there for nearly twenty years, and was appointed its headmistress in 1944. Although Teresa enjoyed teaching at the school, she was increasingly disturbed by the poverty surrounding her in Calcutta. The Bengal famine of 1943 brought misery and death to the city, and the August 1946 Direct Action Day began a period of Muslim-Hindu violence.

Missionaries of Charity


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Missionaries of Charity motherhouse in Kolkata

On 10 September 1946, Teresa experienced what she later described as “the call within the call” when she travelled by train to the Loreto convent in Darjeeling from Calcutta for her annual retreat. “I was to leave the convent and help the poor while living among them. It was an order. To fail would have been to break the faith.” Joseph Langford later wrote, “Though no one knew it at the time, Sister Teresa had just become Mother Teresa”.

She began missionary work with the poor in 1948, replacing her traditional Loreto habit with a simple, white cotton sari with a blue border. Teresa adopted Indian citizenship, spent several months in Patna to receive basic medical training at Holy Family Hospital and ventured into the slums. She founded a school in Motijhil, Kolkata, before she began tending to the poor and hungry. At the beginning of 1949 Teresa was joined in her effort by a group of young women, and she laid the foundation for a new religious community helping the “poorest among the poor”.

Her efforts quickly caught the attention of Indian officials, including the prime minister. Teresa wrote in her diary that her first year was fraught with difficulty. With no income, she begged for food and supplies and experienced doubt, loneliness and the temptation to return to the comfort of convent life during these early months:

Our Lord wants me to be a free nun covered with the poverty of the cross. Today, I learned a good lesson. The poverty of the poor must be so hard for them. While looking for a home I walked and walked till my arms and legs ached. I thought how much they must ache in body and soul, looking for a home, food and health. Then, the comfort of Loreto [her former congregation] came to tempt me. “You have only to say the word and all that will be yours again”, the Tempter kept on saying … Of free choice, my God, and out of love for you, I desire to remain and do whatever be your Holy will in my regard. I did not let a single tear come.

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Missionaries of Charity in traditional saris

On 7 October 1950, Teresa received Vatican permission for the diocesan congregation which would become the Missionaries of Charity. In her words, it would care for “the hungry, the naked, the homeless, the crippled, the blind, the lepers, all those people who feel unwanted, unloved, uncared for throughout society, people that have become a burden to the society and are shunned by everyone”. By 1997 the 13-member Calcutta congregation had grown to more than 4,000 sisters who managed orphanages, AIDS hospices and charity centres worldwide, caring for refugees, the blind, disabled, aged, alcoholics, the poor and homeless and victims of floods, epidemics and famine.

In 1952, Teresa opened her first hospice with help from Calcutta officials. She converted an abandoned Hindu temple into the Kalighat Home for the Dying, free for the poor, and renamed it Kalighat, the Home of the Pure Heart (Nirmal Hriday). Those brought to the home received medical attention and the opportunity to die with dignity in accordance with their faith: Muslims were read the Quran, Hindus received water from the Ganges, and Catholics received extreme unction. “A beautiful death”, Teresa said, “is for people who lived like animals to die like angels—loved and wanted.”

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Nirmal Hriday, Mother Teresa’s Calcutta hospice, in 2007

She opened a hospice for those with leprosy, calling it Shanti Nagar (City of Peace). The Missionaries of Charity established leprosy-outreach clinics throughout Calcutta, providing medication, dressings and food. The Missionaries of Charity took in an increasing number of homeless children; in 1955 Teresa opened Nirmala Shishu Bhavan, the Children’s Home of the Immaculate Heart, as a haven for orphans and homeless youth.

The congregation began to attract recruits and donations, and by the 1960s it had opened hospices, orphanages and leper houses throughout India. Teresa then expanded the congregation abroad, opening a house in Venezuela in 1965 with five sisters.Houses followed in Italy (Rome), Tanzania and Austria in 1968, and during the 1970s the congregation opened houses and foundations in the United States and dozens of countries in Asia, Africa and Europe.

The Missionaries of Charity Brothers was founded in 1963, and a contemplative branch of the Sisters followed in 1976. Lay Catholics and non-Catholics were enrolled in the Co-Workers of Mother Teresa, the Sick and Suffering Co-Workers, and the Lay Missionaries of Charity. Responding to requests by many priests, in 1981 Mother Teresa founded the Corpus Christi Movement for Priests and (with priest Joseph Langford) the Missionaries of Charity Fathers in 1984 to combine the vocational aims of the Missionaries of Charity with the resources of the priesthood. By 2007 the Missionaries of Charity numbered about 450 brothers and 5,000 sisters worldwide, operating 600 missions, schools and shelters in 120 countries.

International Charity


Teresa said, “By blood, I am Albanian. By citizenship, an Indian. By faith, I am a Catholic nun. As to my calling, I belong to the world. As to my heart, I belong entirely to the Heart of Jesus.” Fluent in five languages – Bengali, Albanian, Serbian, English and Hindi – she made occasional trips outside India for humanitarian reasons.

In 1982, at the height of the Siege of Beirut, Teresa rescued 37 children trapped in a front-line hospital by brokering a temporary cease-fire between the Israeli army and Palestinian guerrillas. Accompanied by Red Cross workers, she travelled through the war zone to the hospital to evacuate the young patients.

When Eastern Europe experienced increased openness in the late 1980s, Teresa expanded her efforts to Communist countries which had rejected the Missionaries of Charity. She began dozens of projects, undeterred by criticism of her stands against abortion and divorce: “No matter who says what, you should accept it with a smile and do your own work.” She visited Armenia after the 1988 earthquake and met with Nikolai Ryzhkov, Chairman of the Council of Ministers.

Teresa travelled to assist the hungry in Ethiopia, radiation victims at Chernobyl and earthquake victims in Armenia. In 1991 she returned to Albania for the first time, opening a Missionaries of Charity Brothers home in Tirana.

By 1996, Teresa operated 517 missions in over 100 countries. Her Missionaries of Charity grew from twelve to thousands, serving the “poorest of the poor” in 450 centres worldwide. The first Missionaries of Charity home in the United States was established in the South Bronx area of New York City, and by 1984 the congregation operated 19 establishments throughout the country.

Declining Health and Death


Teresa had a heart attack in Rome in 1983 while she was visiting Pope John Paul II. Following a second attack in 1989, she received an artificial pacemaker. In 1991, after a bout of pneumonia in Mexico, she had additional heart problems. Although Teresa offered to resign as head of the Missionaries of Charity, in a secret ballot the sisters of the congregation voted for her to stay and she agreed to continue.

In April 1996 she fell, breaking her collarbone, and four months later she had malaria and heart failure. Although Teresa had heart surgery, her health was clearly declining. According to Archbishop of Calcutta Henry Sebastian D’Souza, he ordered a priest to perform an exorcism (with her permission) when she was first hospitalised with cardiac problems because he thought she might be under attack by the devil.

On 13 March 1997 Teresa resigned as head of the Missionaries of Charity, and she died on 5 September. At the time of her death, the Missionaries of Charity had over 4,000 sisters and an associated brotherhood of 300 members operating 610 missions in 123 countries. These included hospices and homes for people with HIV/AIDS, leprosy and tuberculosis, soup kitchens, children’s- and family-counselling programmes, orphanages and schools. The Missionaries of Charity were aided by co-workers numbering over one million by the 1990s.

Teresa lay in repose in St Thomas, Calcutta, for a week before her funeral. She received a state funeral from the Indian government in gratitude for her service to the poor of all religions in the country. Teresa’s death was mourned in the secular and religious communities. Prime Minister of Pakistan Nawaz Sharif called her “a rare and unique individual who lived long for higher purposes. Her life-long devotion to the care of the poor, the sick, and the disadvantaged was one of the highest examples of service to our humanity.” According to former U.N. Secretary-General Javier Pérez de Cuéllar, “She is the United Nations. She is peace in the world.”

Recognition and Reception


India

Teresa was first recognised by the Indian government more than a third of a century earlier, receiving the Padma Shri in 1962 and the Jawaharlal Nehru Award for International Understanding in 1969. She later received other Indian awards, including the Bharat Ratna (India’s highest civilian award) in 1980. Teresa’s official biography, by Navin Chawla, was published in 1992. In Kolkata, she is worshipped as a goddess by some Hindus.

To commemorate the 100th anniversary of her birth, the government of India issued a special ₹5 coin (the amount of money Teresa had when she arrived in India) on 28 August 2010. President Pratibha Patil said, “Clad in a white sari with a blue border, she and the sisters of Missionaries of Charity became a symbol of hope to many – the aged, the destitute, the unemployed, the diseased, the terminally ill, and those abandoned by their families.”

Indian views of Teresa are not uniformly favourable. Aroup Chatterjee, a physician born and raised in Calcutta who was an activist in the city’s slums for years around 1980 before moving to the UK, said that he “never even saw any nuns in those slums”. His research, involving more than 100 interviews with volunteers, nuns and others familiar with the Missionaries of Charity, was described in a 2003 book critical of Teresa. Chatterjee criticized her for promoting a “cult of suffering” and a distorted, negative image of Calcutta, exaggerating work done by her mission and misusing funds and privileges at her disposal. According to him, some of the hygiene problems he had criticized (needle reuse, for example) improved after Teresa’s death in 1997.

Bikash Ranjan Bhattacharya, mayor of Kolkata from 2005 to 2010, said that “she had no significant impact on the poor of this city”, glorified illness instead of treating it and misrepresented the city: “No doubt there was poverty in Calcutta, but it was never a city of lepers and beggars, as Mother Teresa presented it.” On the Hindu right, the Bharatiya Janata Party clashed with Teresa over the Christian Dalits but praised her in death and sent a representative to her funeral. Vishwa Hindu Parishad, however, opposed the government decision to grant her a state funeral. Secretary Giriraj Kishore said that “her first duty was to the Church and social service was incidental”, accusing her of favouring Christians and conducting “secret baptisms” of the dying. In a front-page tribute, the Indian fortnightly Frontline dismissed the charges as “patently false” and said that they had “made no impact on the public perception of her work, especially in Calcutta”. Praising her “selfless caring”, energy and bravery, the author of the tribute criticised Teresa’s public campaign against abortion and her claim to be non-political.

In February 2015 Mohan Bhagwat, leader of the Hindu right-wing organisation Rashtriya Swayamsevak Sangh, said that Teresa’s objective was “to convert the person, who was being served, into a Christian”. Former RSS spokesperson M. G. Vaidhya supported Bhagwat’s assessment, and the organisation accused the media of “distorting facts about Bhagwat’s remarks”. Trinamool Congress MP Derek O’Brien, CPI leader Atul Anjan and Delhi chief minister Arvind Kejriwal protested Bhagwat’s statement. Ronald Reagan with Mother Teresa, standing at a microphone

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President Ronald Reagan presents Mother Teresa with the Presidential Medal of Freedom at a White House ceremony as First Lady Nancy Reagan looks on (20 June 1985).

Teresa received the Ramon Magsaysay Award for Peace and International Understanding, given for work in South or East Asia, in 1962. According to its citation, “The Board of Trustees recognises her merciful cognisance of the abject poor of a foreign land, in whose service she has led a new congregation”. By the early 1970s, she was an international celebrity. Teresa’s fame may be partially attributed to Malcolm Muggeridge’s 1969 documentary, Something Beautiful for God, and his 1971 book of the same name. Muggeridge was undergoing a spiritual journey of his own at the time. During filming, footage shot in poor lighting (particularly at the Home for the Dying) was thought unlikely to be usable by the crew. In England, the footage was found to be extremely well-lit and Muggeridge called it a miracle of “divine light” from Teresa. Other crew members said that it was due to a new type of ultra-sensitive Kodak film. Muggeridge later converted to Catholicism.

Around this time, the Catholic world began to honour Teresa publicly. Pope Paul VI gave her the inaugural Pope John XXIII Peace Prize in 1971, commending her work with the poor, display of Christian charity and efforts for peace, and she received the Pacem in Terris Award in 1976. After her death, Teresa progressed rapidly on the road to sainthood.

She was honoured by governments and civilian organisations, and appointed an honorary Companion of the Order of Australia in 1982 “for service to the community of Australia and humanity at large”. The United Kingdom and the United States bestowed a number of awards, culminating in the Order of Merit in 1983 and honorary citizenship of the United States on 16 November 1996. Teresa’s Albanian homeland gave her the Golden Honour of the Nation in 1994, but her acceptance of this and the Haitian Legion of Honour was controversial. Teresa was criticised for implicitly supporting the Duvaliers and corrupt businessmen such as Charles Keating and Robert Maxwell; she wrote to the judge of Keating’s trial, requesting clemency.

Universities in India and the West granted her honorary degrees. Other civilian awards included the Balzan Prize for promoting humanity, peace and brotherhood among peoples (1978) and the Albert Schweitzer International Prize (1975). In April 1976 Teresa visited the University of Scranton in northeastern Pennsylvania, where she received the La Storta Medal for Human Service from university president William J. Byron. She challenged an audience of 4,500 to “know poor people in your own home and local neighbourhood”, feeding others or simply spreading joy and love, and continued: “The poor will help us grow in sanctity, for they are Christ in the guise of distress”. In August 1987 Teresa received an honorary doctor of social science degree, in recognition of her service and her ministry to help the destitute and sick, from the university. She spoke to over 4,000 students and members of the Diocese of Scranton about her service to the “poorest of the poor”, telling them to “do small things with great love”.

External Video

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Mother Teresa’s 1979 Nobel Peace Prize acceptance speech

In 1979, Teresa received the Nobel Peace Prize “for work undertaken in the struggle to overcome poverty and distress, which also constitutes a threat to peace”. She refused the conventional ceremonial banquet for laureates, asking that its $192,000 cost be given to the poor in India and saying that earthly rewards were important only if they helped her to help the world’s needy. When Teresa received the prize she was asked, “What can we do to promote world peace?” She answered, “Go home and love your family.” Building on this theme in her Nobel lecture, she said: “Around the world, not only in the poor countries, but I found the poverty of the West so much more difficult to remove. When I pick up a person from the street, hungry, I give him a plate of rice, a piece of bread, I have satisfied. I have removed that hunger. But a person that is shut out, that feels unwanted, unloved, terrified, the person that has been thrown out from society—that poverty is so hurtable [sic] and so much, and I find that very difficult.” Teresa singled out abortion as “the greatest destroyer of peace today. Because if a mother can kill her own child—what is left for me to kill you and you kill me—there is nothing between.”

Barbara Smoker of the secular humanist magazine The Freethinker criticised Teresa after the Peace Prize award, saying that her promotion of Catholic moral teachings on abortion and contraception diverted funds from effective methods to solve India’s problems. At the Fourth World Conference on Women in Beijing, Teresa said: “Yet we can destroy this gift of motherhood, especially by the evil of abortion, but also by thinking that other things like jobs or positions are more important than loving.”

During her lifetime Teresa was among the top 10 women in the annual Gallup’s most admired man and woman poll 18 times, finishing first several times in the 1980s and 1990s. In 1999 she headed Gallup’s List of Most Widely Admired People of the 20th Century, out-polling all other volunteered answers by a wide margin, and was first in all major demographic categories except the very young.

Criticism


According to a paper by Canadian academics Serge Larivée, Geneviève Chénard and Carole Sénéchal, Teresa’s clinics received millions of dollars in donations but lacked medical care, systematic diagnosis, necessary nutrition and sufficient analgesics for those in pain: “Mother Teresa believed the sick must suffer like Christ on the cross”. It was said that the additional money might have transformed the health of the city’s poor by creating advanced palliative care facilities. Abortion-rights groups criticised Teresa’s stance on abortion.

One of Teresa’s most outspoken critics was English journalist, literary critic and antitheist Christopher Hitchens, author of the essay The Missionary Position: Mother Teresa in Theory and Practice (1995), who wrote in a 2003 article: “This returns us to the medieval corruption of the church, which sold indulgences to the rich while preaching hellfire and continence to the poor. [Mother Teresa] was not a friend of the poor. She was a friend of poverty. She said that suffering was a gift from God. She spent her life opposing the only known cure for poverty, which is the empowerment of women and the emancipation of them from a livestock version of compulsory reproduction.” He accused her of hypocrisy for choosing advanced treatment for her heart condition.

Although Hitchens thought he was the only witness called by the Vatican, Aroup Chatterjee (author of Mother Teresa: The Untold Story) was also called to present evidence opposing Teresa’s beatification and canonisation; the Vatican had abolished the traditional “devil’s advocate”, which served a similar purpose. Hitchens said that “her intention was not to help people”, and she lied to donors about how their contributions were used. “It was by talking to her that I discovered, and she assured me, that she wasn’t working to alleviate poverty”, he said, “She was working to expand the number of Catholics. She said, ‘I’m not a social worker. I don’t do it for this reason. I do it for Christ. I do it for the church.'”

Bill Donohue, the president of Catholic League, issued a comprehensive response to Hitchens’ criticisms in 2016.

Spiritual Life


Analysing her deeds and achievements, Pope John Paul II said: “Where did Mother Teresa find the strength and perseverance to place herself completely at the service of others? She found it in prayer and in the silent contemplation of Jesus Christ, his Holy Face, his Sacred Heart.” Privately, Teresa experienced doubts and struggle in her religious beliefs which lasted nearly 50 years (until the end of her life); according to her postulator, Brian Kolodiejchuk, “She felt no presence of God whatsoever … in her heart or in the eucharist”. Teresa expressed grave doubts about God’s existence and pain over her lack of faith:

Where is my faith? Even deep down … there is nothing but emptiness and darkness … If there be God—please forgive me. When I try to raise my thoughts to Heaven, there is such convicting emptiness that those very thoughts return like sharp knives and hurt my very soul.

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Plaque dedicated to Mother Teresa in Wenceslas Square, Olomouc, Czech Republic

Kolodiejchuk (the official responsible for gathering evidence for her canonisation) thought that her unhappiness might be misinterpreted by some, but her faith that God was working through her was undiminished; although she pined for lost closeness to God, she did not question his existence. Teresa may have experienced something similar to Jesus, who said when he was crucified: “Eli Eli lama sabachthani?” (“My God, my God, why have you forsaken me?”) Kolodiejchuk drew a comparisons to the 16th-century mystic John of the Cross, who coined the phrase “Dark Night of the Soul”. Other saints (including Teresa’s namesake Thérèse of Lisieux, who called it a “night of nothingness”) had similar experiences of spiritual dryness. According to James Langford, these doubts were typical and would not be an impediment to canonisation.

After ten years of doubt, Teresa described a brief period of renewed faith. After Pope Pius XII’s death in 1958, while she prayed for him at a requiem mass, she was relieved of “the long darkness: that strange suffering.” However, five weeks later her spiritual dryness returned.

Teresa wrote many letters to her confessors and superiors over a 66-year period, most notably to Calcutta Archbishop Ferdinand Perier and Jesuit priest Celeste van Exem (her spiritual advisor since the formation of the Missionaries of Charity). She requested that her letters be destroyed, concerned that “people will think more of me—less of Jesus.”

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Semi-abstract painting honoring Mother Teresa

However, the correspondence has been compiled in Mother Teresa: Come Be My Light. Teresa wrote to spiritual confidant Michael van der Peet, “Jesus has a very special love for you. [But] as for me, the silence and the emptiness is so great, that I look and do not see—listen and do not hear—the tongue moves [in prayer] but does not speak … I want you to pray for me—that I let Him have [a] free hand.”

In Deus caritas est (his first encyclical), Pope Benedict XVI mentioned Teresa three times and used her life to clarify one of the encyclical’s main points: “In the example of Blessed Teresa of Calcutta we have a clear illustration of the fact that time devoted to God in prayer not only does not detract from effective and loving service to our neighbour but is in fact the inexhaustible source of that service.” She wrote, “It is only by mental prayer and spiritual reading that we can cultivate the gift of prayer.”

Although her order was not connected with the Franciscan orders, Teresa admired Francis of Assisi and was influenced by Franciscan spirituality. The Sisters of Charity recite the prayer of Saint Francis every morning at mass during the thanksgiving after Communion, and their emphasis on ministry and many of their vows are similar. Francis emphasised poverty, chastity, obedience and submission to Christ. He devoted much of his life to serving the poor, particularly lepers.

Canonisation


Miracle and Beatification

After Teresa’s death in 1997, the Holy See began the process of beatification (the third step towards canonisation) and Kolodiejchuk was appointed postulator by the Diocese of Calcutta. Although he said, “We didn’t have to prove that she was perfect or never made a mistake …”, he had to prove that Teresa’s virtue was heroic. Kolodiejchuk submitted 76 documents, totalling 35,000 pages, which were based on interviews with 113 witnesses who were asked to answer 263 questions.

The process of canonisation requires the documentation of a miracle resulting from the intercession of the prospective saint. In 2002 the Vatican recognised as a miracle the healing of a tumour in the abdomen of Monica Besra, an Indian woman, after the application of a locket containing Teresa’s picture. According to Besra, a beam of light emanated from the picture and her cancerous tumour was cured; however, her husband and some of her medical staff said that conventional medical treatment eradicated the tumour. Dr. Ranjan Mustafi, who told the New York Times he had treated Besra, said that the cyst was caused by tuberculosis: “It was not a miracle … She took medicines for nine months to one year.” According to Besra’s husband, “My wife was cured by the doctors and not by any miracle … This miracle is a hoax.” Besra said that her medical records, including sonograms, prescriptions and physicians’ notes, were confiscated by Sister Betta of the Missionaries of Charity. According to Time, calls to Sister Betta and the office of Sister Nirmala (Teresa’s successor as head of the order) elicited no comment. Officials at Balurghat Hospital, where Besra sought medical treatment, said that they were pressured by the order to call her cure miraculous. In February 2000, former West Bengal health minister Partho De ordered a review of Besra’s medical records at the Department of Health in Kolkata. According to De, there was nothing unusual about her illness and cure based on her lengthy treatment. He said that he had refused to give the Vatican the name of a doctor who would certify that Monica Besra’s healing was a miracle.

During Teresa’s beatification and canonisation, the Roman Curia (the Vatican) studied published and unpublished criticism of her life and work. Hitchens and Chatterjee (author of The Final Verdict, a book critical of Teresa) spoke to the tribunal; according to Vatican officials, the allegations raised were investigated by the Congregation for the Causes of Saints. The group found no obstacle to Teresa’s canonisation, and issued its nihil obstat on 21 April 1999. Because of the attacks on her, some Catholic writers called her a sign of contradiction. A separate medical committee ruled that the miracle of Monica Besra, one of three considered by Kolodiejchuk, was evidence of divine intercession. Teresa was beatified on 19 October 2003, and was known by Catholics as “Blessed”.

Canonisation

On 17 December 2015, the Vatican Press Office confirmed that Pope Francis recognised a second miracle attributed to Teresa: the healing of a Brazilian man with multiple brain tumours back in 2008. The miracle first came to the attention of the postulation (officials managing the cause) during the events of World Youth Day 2013 when the pope was in Brazil that July. A subsequent investigation took place in Brazil from 19–26 June 2015 which was later transferred to the Congregation for the Causes of Saints who issued a decree recognizing the investigation to be completed. A team of medical experts first analyzed and approved this miracle to have no scientific explanation on 10 September 2015, while theologians ascertained the miracle came about after prayers directed to Teresa after they met on 8 October. The members of the Congregation themselves met and approved the findings of the two previous boards on 15 December which allowed for them to pass on their findings to the pope two days later for his approval which he subsequently granted.

Francis canonised her at a ceremony on 4 September 2016 in St. Peter’s Square in Vatican City. Tens of thousands of people witnessed the ceremony, including 15 government delegations and 1,500 homeless people from across Italy. It was televised live on the Vatican channel and streamed online; Skopje, Teresa’s hometown, announced a week-long celebration of her canonisation. In India, a special mass was celebrated by the Missionaries of Charity in Kolkata.

Co-Patron of Calcutta Archdiocese


On September 4, 2017, during a celebration honoring the 1st anniversary of her canonization, Sister Mary Prema Pierick, Superior-General of the Missionaries of Charity, announced that Archbishop Teresa would be made the co-patron of the Calcutta Archdiocese during a Holy Mass in the Cathedral of the Most Holy Rosary at 5.30 pm on September 6, 2017. On September 5, 2017, Archbishop Thomas D’Souza, who serves as head of the Roman Catholic Archdiocese of Calcutta, confirmed that Teresa will be named co-patron of the Calcutta Diocese, alongside Francis Xavier. On September 6, 2017, about 500 people attended the Mass at a cathedral where Dominique Gomes, the local Vicar General, read the decree instituting her as the second patron saint of the archdiocese. The ceremony was also presided over by D’Souza and the Vatican’s ambassador to India, Giambattista Diquattro, who lead the Mass and inaugurated a bronze statue in the church of Mother Teresa carrying a child.

The Roman Catholic Church declared St. Francis Xavier the first patron saint of Calcutta in 1986.

Legacy and Depictions in Popular Culture


Commemorations

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Tirana International Airport Nënë Tereza

Teresa has been commemorated by museums and named the patroness of a number of churches. She has had buildings, roads and complexes named after her, including Albania’s international airport. Mother Teresa Day (Dita e Nënë Terezës), 19 October, is a public holiday in Albania. In 2009 the Memorial House of Mother Teresa was opened in her hometown of Skopje, Macedonia. The Roman Catholic cathedral in Pristina, Kosovo, is named in her honour. Its construction, begun in 2011, sparked controversy in Muslim circles who saw it as oversized relative to the number of Catholics in the area. An initiative to erect a monument to Teresa in the town of Peć (according to activists, 98 percent Muslim) was opposed by Kosovo Muslims.

Mother Teresa Women’s University, in Kodaikanal, was established in 1984 as a public university by the government of Tamil Nadu. The Mother Theresa Postgraduate and Research Institute of Health Sciences, in Pondicherry, was established in 1999 by the government of Puducherry. The charitable organisation Sevalaya runs the Mother Teresa Girls Home, providing poor and orphaned girls near the underserved village of Kasuva in Tamil Nadu with free food, clothing, shelter and education. A number of tributes by Teresa’s biographer, Navin Chawla, have appeared in Indian newspapers and magazines. Indian Railways introduced the “Mother Express”, a new train named after Mother Teresa, on 26 August 2010 to commemorate the centenary of her birth. The Tamil Nadu government organised centenary celebrations honouring Teresa on 4 December 2010 in Chennai, headed by chief minister M Karunanidhi. Beginning on 5 September 2013, the anniversary of her death has been designated the International Day of Charity by the United Nations General Assembly.

On September 5, 2017, St. Teresa Cathedral, the first Roman Catholic cathedral named in Teresa’s honor, was consecrated in Kosovo. The Cathedral is also Kosovo’s first Roman Catholic cathedral as well.

Film and Literature

Documentaries and Books
  • Teresa is the subject of the 1969 documentary film and 1972 book, Something Beautiful for God, by Malcolm Muggeridge. The film has been credited with drawing the Western world’s attention to Mother Teresa.
  • Christopher Hitchens’ 1994 documentary, Hell’s Angel, argues that Teresa urged the poor to accept their fate; the rich are portrayed as favoured by God. It was the precursor of Hitchens’ essay, The Missionary Position: Mother Teresa in Theory and Practice.
Dramatic films and television
  • Geraldine Chaplin played Teresa in Mother Teresa: In the Name of God’s Poor, which received a 1997 Art Film Festival award.
  • She was played by Olivia Hussey in a 2003 Italian television miniseries, Mother Teresa of Calcutta. Re-released in 2007, it received a CAMIE award.
  • Teresa was played by Juliet Stevenson in the 2014 film, The Letters, which was based on her letters to Vatican priest Celeste van Exem.

Martin Luther King Jr.

From Wikipedia, the free encyclopedia

Martin_Luther_King,_Jr.

Martin Luther King Jr. (born Michael King Jr., January 15, 1929 – April 4, 1968) was an American Baptist minister and activist who became the most visible spokesperson and leader in the civil rights movement. He is best known for his role in the advancement of civil rights using the tactics of nonviolence and civil disobedience based on his Christian beliefs and inspired by the nonviolent activism of Mahatma Gandhi.

King became a civil rights activist early in his career. He led the 1955 Montgomery bus boycott and helped found the Southern Christian Leadership Conference (SCLC) in 1957, serving as its first president. With the SCLC, King led an unsuccessful 1962 struggle against segregation in Albany, Georgia, and helped organize the 1963 nonviolent protests in Birmingham, Alabama. King also helped to organize the 1963 March on Washington, where he delivered his famous “I Have a Dream” speech.

On October 14, 1964, King received the Nobel Peace Prize for combating racial inequality through nonviolent resistance. In 1965, he helped to organize the Selma to Montgomery marches, and the following year he and SCLC took the movement north to Chicago to work on segregated housing. In the final years of his life, King expanded his focus to include opposition towards poverty and the Vietnam War, alienating many of his liberal allies with a 1967 speech titled “Beyond Vietnam”.

In 1968, King was planning a national occupation of Washington, D.C., to be called the Poor People’s Campaign, when he was assassinated by James Earl Ray on April 4 in Memphis, Tennessee. King’s death was followed by riots in many U.S. cities. Ray, who fled the country, was arrested two months later at London Heathrow Airport. Ray was sentenced to 99 years in prison for King’s murder, and died in 1998 from hepatitis while serving his sentence.

King was posthumously awarded the Presidential Medal of Freedom and the Congressional Gold Medal. Martin Luther King Jr. Day was established as a holiday in numerous cities and states beginning in 1971, and as a U.S. federal holiday in 1986. Hundreds of streets in the U.S. have been renamed in his honor, and a county in Washington State was also renamed for him. The Martin Luther King Jr. Memorial on the National Mall in Washington, D.C., was dedicated in 2011.

 

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Contents
1 Early life and education
1.1 Doctoral studies
2 Montgomery bus boycott, 1955
3 Southern Christian Leadership Conference
3.1 Albany Movement
3.2 Birmingham campaign
3.3 St. Augustine, Florida
3.4 Selma, Alabama
3.5 New York City
4 March on Washington, 1963
5 Selma voting rights movement and “Bloody Sunday”, 1965
6 Chicago open housing movement, 1966
7 Opposition to the Vietnam War
8 Poor People’s Campaign, 1968
8.1 After King’s death
9 Assassination and aftermath
9.1 Aftermath
9.2 Allegations of conspiracy
10 Legacy
10.1 Martin Luther King Jr. Day
10.2 Liturgical commemorations
10.3 UK legacy and The Martin Luther King Peace Committee
11 Ideas, influences, and political stances
11.1 Religion
11.2 Nonviolence
11.3 Politics
11.4 Compensation
11.5 Family planning
12 FBI and King’s personal life
12.1 FBI surveillance and wiretapping
12.2 NSA monitoring of King’s communications
12.3 Allegations of communism
12.4 CIA surveillance
12.5 Adultery
12.6 Police observation during the assassination
13 Awards and recognition
13.1 Five-dollar bill
14 Works

Early Life and Education


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The high school that King attended was named after African-American educator Booker T. Washington.

King was born on January 15, 1929, in Atlanta, Georgia, to the Reverend Martin Luther King, Sr. (1899–1984) and Alberta Williams King (1904–1974). King’s legal name at birth was Michael King, and his father was also born Michael King, but the elder King changed his and his son’s names following a 1934 trip to Germany to attend the Fifth Baptist World Alliance Congress in Berlin. It was during this time he chose to be called Martin Luther King in honor of the German reformer Martin Luther. King’s parents were both African-American, and he also had Irish ancestry through his paternal great-grandfather.

King was a middle child, between an older sister, Willie Christine King, and a younger brother, Alfred Daniel Williams King. King sang with his church choir at the 1939 Atlanta premiere of the movie Gone with the Wind. King liked singing and music. His mother was an accomplished organist and choir leader, and she took him to various churches to sing. He received attention for singing “I Want to Be More and More Like Jesus.” King later became a member of the junior choir in his church.

King said that his father regularly whipped him until he was fifteen; a neighbor reported hearing the elder King telling his son “he would make something of him even if he had to beat him to death.” King saw his father’s proud and fearless protests against segregation, such as King Sr. refusing to listen to a traffic policeman after being referred to as “boy,” or stalking out of a store with his son when being told by a shoe clerk that they would have to “move to the rear” of the store to be served.

When King was a child, he befriended a white boy whose father owned a business near his family’s home. When the boys were six, they started school: King had to attend a school for African Americans and the other boy went to one for whites (public schools were among the facilities segregated by state law). King lost his friend because the child’s father no longer wanted the boys to play together.

King suffered from depression throughout much of his life. In his adolescent years, he initially felt resentment against whites due to the “racial humiliation” that he, his family, and his neighbors often had to endure in the segregated South. At the age of 12, shortly after his maternal grandmother died, King blamed himself and jumped out of a second-story window, but survived.

King was skeptical of many of Christianity’s claims. At the age of 13, he denied the bodily resurrection of Jesus during Sunday school. From this point, he stated, “doubts began to spring forth unrelentingly.” However, he later concluded that the Bible has “many profound truths which one cannot escape” and decided to enter the seminary.

Growing up in Atlanta, King attended Booker T. Washington High School. He became known for his public speaking ability and was part of the school’s debate team. King became the youngest assistant manager of a newspaper delivery station for the Atlanta Journal in 1942 when he was 13. During his junior year, he won first prize in an oratorical contest sponsored by the Negro Elks Club in Dublin, Georgia. Returning home to Atlanta by bus, he and his teacher were ordered by the driver to stand so that white passengers could sit down. King initially refused, but complied after his teacher told him that he would be breaking the law if he did not submit. King said that during this incident, he was “the angriest I have ever been in my life.” A precocious student, he skipped both the ninth and the twelfth grades of high school.

During King’s junior year in high school, Morehouse College, a respected historically black college, announced that it would accept any high school juniors who could pass its entrance exam. At that time, many students had abandoned further studies to enlist in World War II. Due to this, Morehouse was eager to fill its classrooms. At the age of 15, King passed the exam and entered Morehouse. The summer before his last year at Morehouse, in 1947, the 18-year-old King chose to enter the ministry. He had concluded that the church offered the most assuring way to answer “an inner urge to serve humanity.” King’s “inner urge” had begun developing, and he made peace with the Baptist Church, as he believed he would be a “rational” minister with sermons that were “a respectful force for ideas, even social protest.”

In 1948, he graduated from Morehouse with a B.A. in sociology and enrolled in Crozer Theological Seminary in Chester, Pennsylvania, from which he graduated with a B.Div. degree in 1951. King’s father fully supported his decision to continue his education.

While attending Crozer, King was joined by Walter McCall, a former classmate at Morehouse. At Crozer, King was elected president of the student body. The African-American students of Crozer for the most part conducted their social activity on Edwards Street. King became fond of the street because a classmate had an aunt who prepared collard greens for them, which they both relished.

King once reproved another student for keeping beer in his room, saying they had shared responsibility as African Americans to bear “the burdens of the Negro race.” For a time, he was interested in Walter Rauschenbusch’s “social gospel.” In his third year at Morehouse, King became romantically involved with the white daughter of an immigrant German woman who worked as a cook in the cafeteria. The daughter had been involved with a professor prior to her relationship with King. King planned to marry her, but friends advised against it, saying that an interracial marriage would provoke animosity from both blacks and whites, potentially damaging his chances of ever pastoring a church in the South. King tearfully told a friend that he could not endure his mother’s pain over the marriage and broke the relationship off six months later. He continued to have lingering feelings toward the women he left; one friend was quoted as saying, “He never recovered.”

King married Coretta Scott on June 18, 1953, on the lawn of her parents’ house in her hometown of Heiberger, Alabama; he was 24 and she was 26. They became the parents of four children: Yolanda King (b. 1955, d. 2007), Martin Luther King III (b. 1957), Dexter Scott King (b. 1961), and Bernice King (b. 1963). During their marriage, King limited Coretta’s role in the civil rights movement, expecting her to be a housewife and mother.

At age 25 in 1954, King was called as pastor of the Dexter Avenue Baptist Church in Montgomery, Alabama.

Doctoral Studies

King began doctoral studies in systematic theology at Boston University and received his Ph.D. on June 5, 1955, with a dissertation on A Comparison of the Conceptions of God in the Thinking of Paul Tillich and Henry Nelson Wieman. While pursuing doctoral studies, King worked as an assistant minister at Boston’s historic Twelfth Baptist Church with Rev. William Hunter Hester. Hester was an old friend of King’s father, and was an important influence on King.

Decades later, an academic inquiry in October 1991 concluded that portions of his dissertation had been plagiarized and he had acted improperly. However, “[d]espite its finding, the committee said that ‘no thought should be given to the revocation of Dr. King’s doctoral degree,’ an action that the panel said would serve no purpose.” The committee also found that the dissertation still “makes an intelligent contribution to scholarship.” A letter is now attached to the copy of King’s dissertation held in the university library, noting that numerous passages were included without the appropriate quotations and citations of sources.

Montgomery Bus Boycott, 1955


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Rosa Parks with King, 1955

In March 1955, Claudette Colvin, a black fifteen-year-old schoolgirl in Montgomery, refused to give up her bus seat to a white man in compliance with Jim Crow laws, which were local regulations in the Southern United States that enforced racial segregation. King was on the committee from the Birmingham African-American community that looked into the case; because Colvin was pregnant and unmarried, E. D. Nixon and Clifford Durr decided to wait for a better case to pursue.

On December 1, 1955, Rosa Parks was arrested for refusing to give up her seat on a city bus. The Montgomery bus boycott, urged and planned by Nixon and led by King, soon followed. The boycott lasted for 385 days, and the situation became so tense that King’s house was bombed. King was arrested during this campaign, which concluded with a United States District Court ruling in Browder v. Gayle that ended racial segregation on all Montgomery public buses. King’s role in the bus boycott transformed him into a national figure and the best-known spokesman of the civil rights movement.

Southern Christian Leadership Conference


In 1957, King, Ralph Abernathy, Fred Shuttlesworth, Joseph Lowery, and other civil rights activists founded the Southern Christian Leadership Conference (SCLC). The group was created to harness the moral authority and organizing power of black churches to conduct nonviolent protests in the service of civil rights reform. One of the group’s inspirations was the crusades of evangelist Billy Graham, who befriended King after he attended a Graham crusade in New York City in 1957. King led the SCLC until his death. The SCLC’s 1957 Prayer Pilgrimage for Freedom was the first time King addressed a national audience. Other civil rights leaders involved in the SCLC with King included: James Bevel, Allen Johnson, Curtis W. Harris, Walter E. Fauntroy, C. T. Vivian, Andrew Young, The Freedom Singers, Charles Evers, Cleveland Robinson, Randolph Blackwell, Annie Bell Robinson Devine, Charles Kenzie Steele, Alfred Daniel Williams King, Benjamin Hooks, Aaron Henry and Bayard Rustin.

On September 20, 1958, while signing copies of his book Stride Toward Freedom in Blumstein’s department store in Harlem, King narrowly escaped death when Izola Curry, a mentally ill black woman who believed he was conspiring against her with communists, stabbed him in the chest with a letter opener. After emergency surgery by Aubre de Lambert Maynard, Emil Naclerio and John W. V. Cordice, King was hospitalized for several weeks, while Curry was found mentally incompetent to stand trial. In 1959, he published a short book called The Measure of A Man, which contained his sermons “What is Man?” and “The Dimensions of a Complete Life.” The sermons argued for man’s need for God’s love and criticized the racial injustices of Western civilization.

Harry Wachtel—who joined King’s legal advisor Clarence B. Jones in defending four ministers of the SCLC in a libel suit over a newspaper advertisement (New York Times Co. v. Sullivan)—founded a tax-exempt fund to cover the expenses of the suit and to assist the nonviolent civil rights movement through a more effective means of fundraising. This organization was named the “Gandhi Society for Human Rights.” King served as honorary president for the group. Displeased with the pace of President Kennedy’s addressing the issue of segregation, King and the Gandhi Society produced a document in 1962 calling on the President to follow in the footsteps of Abraham Lincoln and use an executive order to deliver a blow for civil rights as a kind of Second Emancipation Proclamation. Kennedy did not execute the order.

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Lyndon B. Johnson and Robert F. Kennedy with civil rights leaders, June 22, 1963

The FBI, under written directive from Attorney General Robert F. Kennedy, began tapping King’s telephone in the fall of 1963. Concerned that allegations of communists in the SCLC, if made public, would derail the administration’s civil rights initiatives, Kennedy warned King to discontinue these associations, and later felt compelled to issue the written directive authorizing the FBI to wiretap King and other SCLC leaders. FBI Director J. Edgar Hoover feared the civil rights movement and investigated the allegations of communist infiltration. When no evidence emerged to support this, the FBI used the incidental details caught on tape over the next five years in attempts to force King out of his leadership position, in the COINTELPRO program.

King believed that organized, nonviolent protest against the system of southern segregation known as Jim Crow laws would lead to extensive media coverage of the struggle for black equality and voting rights. Journalistic accounts and televised footage of the daily deprivation and indignities suffered by Southern blacks, and of segregationist violence and harassment of civil rights workers and marchers, produced a wave of sympathetic public opinion that convinced the majority of Americans that the civil rights movement was the most important issue in American politics in the early 1960s.

King organized and led marches for blacks’ right to vote, desegregation, labor rights, and other basic civil rights. Most of these rights were successfully enacted into the law of the United States with the passage of the Civil Rights Act of 1964 and the 1965 Voting Rights Act.

King and the SCLC put into practice many of the principles of the Christian Left and applied the tactics of nonviolent protest with great success by strategically choosing the method of protest and the places in which protests were carried out. There were often dramatic stand-offs with segregationist authorities, who sometimes turned violent.

Throughout his participation in the civil rights movement, King was criticized by many groups. This included opposition by more militant blacks such as Nation of Islam member Malcolm X. Stokely Carmichael was a separatist and disagreed with King’s plea for racial integration because he considered it an insult to a uniquely African-American culture. Omali Yeshitela urged Africans to remember the history of violent European colonization and how power was not secured by Europeans through integration, but by violence and force.

Albany Movement

The Albany Movement was a desegregation coalition formed in Albany, Georgia, in November 1961. In December, King and the SCLC became involved. The movement mobilized thousands of citizens for a broad-front nonviolent attack on every aspect of segregation within the city and attracted nationwide attention. When King first visited on December 15, 1961, he “had planned to stay a day or so and return home after giving counsel.” The following day he was swept up in a mass arrest of peaceful demonstrators, and he declined bail until the city made concessions. According to King, “that agreement was dishonored and violated by the city” after he left town.

King returned in July 1962, and was sentenced to forty-five days in jail or a $178 fine. He chose jail. Three days into his sentence, Police Chief Laurie Pritchett discreetly arranged for King’s fine to be paid and ordered his release. “We had witnessed persons being kicked off lunch counter stools … ejected from churches … and thrown into jail … But for the first time, we witnessed being kicked out of jail.” It was later acknowledged by the King Center that Billy Graham was the one who bailed King out of jail during this time.

After nearly a year of intense activism with few tangible results, the movement began to deteriorate. King requested a halt to all demonstrations and a “Day of Penance” to promote nonviolence and maintain the moral high ground. Divisions within the black community and the canny, low-key response by local government defeated efforts. Though the Albany effort proved a key lesson in tactics for King and the national civil rights movement, the national media was highly critical of King’s role in the defeat, and the SCLC’s lack of results contributed to a growing gulf between the organization and the more radical SNCC. After Albany, King sought to choose engagements for the SCLC in which he could control the circumstances, rather than entering into pre-existing situations.

Birmingham Campaign

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Mug shots of King following his arrest for protesting the treatment of blacks in Birmingham

In April 1963, the SCLC began a campaign against racial segregation and economic injustice in Birmingham, Alabama. The campaign used nonviolent but intentionally confrontational tactics, developed in part by Rev. Wyatt Tee Walker. Black people in Birmingham, organizing with the SCLC, occupied public spaces with marches and sit-ins, openly violating laws that they considered unjust.

King’s intent was to provoke mass arrests and “create a situation so crisis-packed that it will inevitably open the door to negotiation.” However, the campaign’s early volunteers did not succeed in shutting down the city, or in drawing media attention to the police’s actions. Over the concerns of an uncertain King, SCLC strategist James Bevel changed the course of the campaign by recruiting children and young adults to join in the demonstrations. Newsweek called this strategy a Children’s Crusade.

During the protests, the Birmingham Police Department, led by Eugene “Bull” Connor, used high-pressure water jets and police dogs against protesters, including children. Footage of the police response was broadcast on national television news and dominated the nation’s attention, shocking many white Americans and consolidating black Americans behind the movement. Not all of the demonstrators were peaceful, despite the avowed intentions of the SCLC. In some cases, bystanders attacked the police, who responded with force. King and the SCLC were criticized for putting children in harm’s way. But the campaign was a success: Connor lost his job, the “Jim Crow” signs came down, and public places became more open to blacks. King’s reputation improved immensely.

King was arrested and jailed early in the campaign—his 13th arrest out of 29. From his cell, he composed the now-famous Letter from Birmingham Jail which responds to calls on the movement to pursue legal channels for social change. King argues that the crisis of racism is too urgent, and the current system too entrenched: “We know through painful experience that freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.” He points out that the Boston Tea Party, a celebrated act of rebellion in the American colonies, was illegal civil disobedience, and that, conversely, “everything Adolf Hitler did in Germany was ‘legal’.” King also expresses his frustration with white moderates and clergymen too timid to oppose an unjust system:

I have almost reached the regrettable conclusion that the Negro’s great stumbling block in his stride toward freedom is not the White Citizen’s Councilor or the Ku Klux Klanner, but the white moderate, who is more devoted to “order” than to justice; who prefers a negative peace which is the absence of tension to a positive peace which is the presence of justice; who constantly says: “I agree with you in the goal you seek, but I cannot agree with your methods of direct action”; who paternalistic-ally believes he can set the timetable for another man’s freedom; who lives by a mythical concept of time and who constantly advises the Negro to wait for a “more convenient season.”

St. Augustine, Florida

In March 1964, King and the SCLC joined forces with Robert Hayling’s then-controversial movement in St. Augustine, Florida. Hayling’s group had been affiliated with the NAACP but was forced out of the organization for advocating armed self-defense alongside nonviolent tactics. However, the pacifist SCLC accepted them. King and the SCLC worked to bring white Northern activists to St. Augustine, including a delegation of rabbis and the 72-year-old mother of the governor of Massachusetts, all of whom were arrested. During June, the movement marched nightly through the city, “often facing counter demonstrations by the Klan, and provoking violence that garnered national media attention.” Hundreds of the marchers were arrested and jailed. During the course of this movement, the Civil Rights Act of 1964 was passed.

Selma, Alabama

In December 1964, King and the SCLC joined forces with the Student Nonviolent Coordinating Committee (SNCC) in Selma, Alabama, where the SNCC had been working on voter registration for several months. A local judge issued an injunction that barred any gathering of 3 or more people affiliated with the SNCC, SCLC, DCVL, or any of 41 named civil rights leaders. This injunction temporarily halted civil rights activity until King defied it by speaking at Brown Chapel on January 2, 1965. During the 1965 march to Montgomery, Alabama, violence by state police and others against the peaceful marchers resulted in much publicity, making Alabama’s racism visible nationwide.

New York City

On February 6, 1964, King delivered the inaugural speech of a lecture series initiated at the New School called “The American Race Crisis.” No audio record of his speech has been found, but in August 2013, almost 50 years later, the school discovered an audiotape with 15 minutes of a question-and-answer session that followed King’s address. In these remarks, King referred to a conversation he had recently had with Jawaharlal Nehru in which he compared the sad condition of many African Americans to that of India’s untouchables.

March on Washington, 1963


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March on Washington for Jobs and Freedom

King, representing the SCLC, was among the leaders of the “Big Six” civil rights organizations who were instrumental in the organization of the March on Washington for Jobs and Freedom, which took place on August 28, 1963. The other leaders and organizations comprising the Big Six were Roy Wilkins from the National Association for the Advancement of Colored People; Whitney Young, National Urban League; A. Philip Randolph, Brotherhood of Sleeping Car Porters; John Lewis, SNCC; and James L. Farmer Jr., of the Congress of Racial Equality.

The primary logistical and strategic organizer was King’s colleague Bayard Rustin. For King, this role was another which courted controversy, since he was one of the key figures who acceded to the wishes of United States President John F. Kennedy in changing the focus of the march. Kennedy initially opposed the march outright, because he was concerned it would negatively impact the drive for passage of civil rights legislation. However, the organizers were firm that the march would proceed. With the march going forward, the Kennedys decided it was important to work to ensure its success. President Kennedy was concerned the turnout would be less than 100,000. Therefore, he enlisted the aid of additional church leaders and the UAW union to help mobilize demonstrators for the cause.

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King is most famous for his “I Have a Dream” speech, given in front of the Lincoln Memorial during the 1963 March on Washington for Jobs and Freedom.

The march originally was conceived as an event to dramatize the desperate condition of blacks in the southern U.S. and an opportunity to place organizers’ concerns and grievances squarely before the seat of power in the nation’s capital. Organizers intended to denounce the federal government for its failure to safeguard the civil rights and physical safety of civil rights workers and blacks. However, the group acquiesced to presidential pressure and influence, and the event ultimately took on a far less strident tone. As a result, some civil rights activists felt it presented an inaccurate, sanitized pageant of racial harmony; Malcolm X called it the “Farce on Washington”, and the Nation of Islam forbade its members from attending the march.

The march did, however, make specific demands: an end to racial segregation in public schools; meaningful civil rights legislation, including a law prohibiting racial discrimination in employment; protection of civil rights workers from police brutality; a $2 minimum wage for all workers; and self-government for Washington, D.C., then governed by congressional committee. Despite tensions, the march was a resounding success. More than a quarter of a million people of diverse ethnicities attended the event, sprawling from the steps of the Lincoln Memorial onto the National Mall and around the reflecting pool. At the time, it was the largest gathering of protesters in Washington, D.C.’s history.

King delivered a 17-minute speech, later known as “I Have a Dream.” In the speech’s most famous passage—in which he departed from his prepared text, possibly at the prompting of Mahalia Jackson, who shouted behind him, “Tell them about the dream!”—King said:

I say to you today, my friends, so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream.
I have a dream that one day this nation will rise up and live out the true meaning of its creed: ‘We hold these truths to be self-evident: that all men are created equal.’
I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slave owners will be able to sit down together at the table of brotherhood.
I have a dream that one day even the state of Mississippi, a state sweltering with the heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice.
I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.
I have a dream today.
I have a dream that one day, down in Alabama, with its vicious racists, with its governor having his lips dripping with the words of interposition and nullification; one day right there in Alabama, little black boys and black girls will be able to join hands with little white boys and white girls as sisters and brothers.
I have a dream today.

“I Have a Dream” came to be regarded as one of the finest speeches in the history of American oratory. The March, and especially King’s speech, helped put civil rights at the top of the agenda of reformers in the United States and facilitated passage of the Civil Rights Act of 1964.

The original typewritten copy of the speech, including King’s handwritten notes on it, was discovered in 1984 to be in the hands of George Raveling, the first African-American basketball coach of the University of Iowa. In 1963, Raveling, then 26, was standing near the podium, and immediately after the oration, impulsively asked King if he could have his copy of the speech. He got it.

Selma voting rights movement and “Bloody Sunday”, 1965


Acting on James Bevel’s call for a march from Selma to Montgomery, King, Bevel, and the SCLC, in partial collaboration with SNCC, attempted to organize the march to the state’s capital. The first attempt to march on March 7, 1965, was aborted because of mob and police violence against the demonstrators. This day has become known as Bloody Sunday and was a major turning point in the effort to gain public support for the civil rights movement. It was the clearest demonstration up to that time of the dramatic potential of King’s nonviolence strategy. King, however, was not present.

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The civil rights march from Selma to Montgomery, Alabama, in 1965

King met with officials in the Lyndon B. Johnson Administration on March 5 in order to request an injunction against any prosecution of the demonstrators. He did not attend the march due to church duties, but he later wrote, “If I had any idea that the state troopers would use the kind of brutality they did, I would have felt compelled to give up my church duties altogether to lead the line.” Footage of police brutality against the protesters was broadcast extensively and aroused national public outrage.

King next attempted to organize a march for March 9. The SCLC petitioned for an injunction in federal court against the State of Alabama; this was denied and the judge issued an order blocking the march until after a hearing. Nonetheless, King led marchers on March 9 to the Edmund Pettus Bridge in Selma, then held a short prayer session before turning the marchers around and asking them to disperse so as not to violate the court order. The unexpected ending of this second march aroused the surprise and anger of many within the local movement. The march finally went ahead fully on March 25, 1965. At the conclusion of the march on the steps of the state capitol, King delivered a speech that became known as “How Long, Not Long.” In it, King stated that equal rights for African Americans could not be far away, “because the arc of the moral universe is long, but it bends toward justice.”

Chicago Open Housing Movement, 1966


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President Lyndon B. Johnson meets with King in the White House Cabinet Room, 1966

In 1966, after several successes in the south, King, Bevel, and others in the civil rights organizations tried to spread the movement to the North, with Chicago as their first destination. King and Ralph Abernathy, both from the middle class, moved into a building at 1550 S. Hamlin Avenue, in the slums of North Lawndale on Chicago’s West Side, as an educational experience and to demonstrate their support and empathy for the poor.

The SCLC formed a coalition with CCCO, Coordinating Council of Community Organizations, an organization founded by Albert Raby, and the combined organizations’ efforts were fostered under the aegis of the Chicago Freedom Movement. During that spring, several white couple/black couple tests of real estate offices uncovered racial steering: discriminatory processing of housing requests by couples who were exact matches in income, background, number of children, and other attributes. Several larger marches were planned and executed: in Bogan, Belmont Cragin, Jefferson Park, Evergreen Park (a suburb southwest of Chicago), Gage Park, Marquette Park, and others.

Abernathy later wrote that the movement received a worse reception in Chicago than in the South. Marches, especially the one through Marquette Park on August 5, 1966, were met by thrown bottles and screaming throngs. Rioting seemed very possible. King’s beliefs militated against his staging a violent event, and he negotiated an agreement with Mayor Richard J. Daley to cancel a march in order to avoid the violence that he feared would result. King was hit by a brick during one march but continued to lead marches in the face of personal danger.

When King and his allies returned to the South, they left Jesse Jackson, a seminary student who had previously joined the movement in the South, in charge of their organization. Jackson continued their struggle for civil rights by organizing the Operation Breadbasket movement that targeted chain stores that did not deal fairly with blacks.

A 1967 CIA document declassified in 2017 downplayed King’s role in the “black militant situation” in Chicago, with a source stating that King “sought at least constructive, positive projects.”

Opposition to the Vietnam War


King long opposed American involvement in the Vietnam War, but at first avoided the topic in public speeches in order to avoid the interference with civil rights goals that criticism of President Johnson’s policies might have created. However, at the urging of SCLC’s former Director of Direct Action and now the head of the Spring Mobilization Committee to End the War in Vietnam, James Bevel, King eventually agreed to publicly oppose the war as opposition was growing among the American public. During an April 4, 1967, appearance at the New York City Riverside Church—exactly one year before his death—King delivered a speech titled “Beyond Vietnam: A Time to Break Silence.” He spoke strongly against the U.S.’s role in the war, arguing that the U.S. was in Vietnam “to occupy it as an American colony” and calling the U.S. government “the greatest purveyor of violence in the world today.” He also connected the war with economic injustice, arguing that the country needed serious moral change:

A true revolution of values will soon look uneasily on the glaring contrast of poverty and wealth. With righteous indignation, it will look across the seas and see individual capitalists of the West investing huge sums of money in Asia, Africa and South America, only to take the profits out with no concern for the social betterment of the countries, and say: “This is not just.”

King also opposed the Vietnam War because it took money and resources that could have been spent on social welfare at home. The United States Congress was spending more and more on the military and less and less on anti-poverty programs at the same time. He summed up this aspect by saying, “A nation that continues year after year to spend more money on military defense than on programs of social uplift is approaching spiritual death.” He stated that North Vietnam “did not begin to send in any large number of supplies or men until American forces had arrived in the tens of thousands”, and accused the U.S. of having killed a million Vietnamese, “mostly children.” King also criticized American opposition to North Vietnam’s land reforms.

King’s opposition cost him significant support among white allies, including President Johnson, Billy Graham, union leaders and powerful publishers. “The press is being stacked against me”, King said, complaining of what he described as a double standard that applauded his nonviolence at home, but deplored it when applied “toward little brown Vietnamese children.” Life magazine called the speech “demagogic slander that sounded like a script for Radio Hanoi”, and The Washington Post declared that King had “diminished his usefulness to his cause, his country, his people.”

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King speaking to an anti-Vietnam war rally at the University of Minnesota in St. Paul, April 27, 1967

The “Beyond Vietnam” speech reflected King’s evolving political advocacy in his later years, which paralleled the teachings of the progressive Highlander Research and Education Center, with which he was affiliated. King began to speak of the need for fundamental changes in the political and economic life of the nation, and more frequently expressed his opposition to the war and his desire to see a redistribution of resources to correct racial and economic injustice. He guarded his language in public to avoid being linked to communism by his enemies, but in private he sometimes spoke of his support for democratic socialism. In a 1952 letter to Coretta Scott, he said: “I imagine you already know that I am much more socialistic in my economic theory than capitalistic …” In one speech, he stated that “something is wrong with capitalism” and claimed, “There must be a better distribution of wealth, and maybe America must move toward a democratic socialism.” King had read Marx while at Morehouse, but while he rejected “traditional capitalism”, he also rejected communism because of its “materialistic interpretation of history” that denied religion, its “ethical relativism”, and its “political totalitarianism.”

King also stated in “Beyond Vietnam” that “true compassion is more than flinging a coin to a beggar … it comes to see that an edifice which produces beggars needs restructuring.” King quoted a United States official who said that from Vietnam to Latin America, the country was “on the wrong side of a world revolution.” King condemned America’s “alliance with the landed gentry of Latin America”, and said that the U.S. should support “the shirtless and barefoot people” in the Third World rather than suppressing their attempts at revolution.

King’s stance on Vietnam encouraged Allard K. Lowenstein, William Sloane Coffin and Norman Thomas, with the support of anti-war Democrats, to attempt to persuade King to run against President Johnson in the 1968 United States presidential election. King contemplated but ultimately decided against the proposal on the grounds that he felt uneasy with politics and considered himself better suited for his morally unambiguous role as an activist.

On April 15, 1967, King participated in and spoke at an anti-war march from New York’s Central Park to the United Nations organized by the Spring Mobilization Committee to End the War in Vietnam and initiated by its chairman, James Bevel. At the U.N. King also brought up issues of civil rights and the draft.

I have not urged a mechanical fusion of the civil rights and peace movements. There are people who have come to see the moral imperative of equality, but who cannot yet see the moral imperative of world brotherhood. I would like to see the fervor of the civil-rights movement imbued into the peace movement to instill it with greater strength. And I believe everyone has a duty to be in both the civil-rights and peace movements. But for those who presently choose but one, I would hope they will finally come to see the moral roots common to both.

Seeing an opportunity to unite civil rights activists and anti-war activists, Bevel convinced King to become even more active in the anti-war effort. Despite his growing public opposition towards the Vietnam War, King was also not fond of the hippie culture which developed from the anti-war movement. In his 1967 Massey Lecture, King stated:

The importance of the hippies is not in their unconventional behavior, but in the fact that hundreds of thousands of young people, in turning to a flight from reality, are expressing a profoundly discrediting view on the society they emerge from.

On January 13, 1968, the day after President Johnson’s State of the Union Address, King called for a large march on Washington against “one of history’s most cruel and senseless wars.”

We need to make clear in this political year, to congressmen on both sides of the aisle and to the president of the United States, that we will no longer tolerate, we will no longer vote for men who continue to see the killings of Vietnamese and Americans as the best way of advancing the goals of freedom and self-determination in Southeast Asia.

Poor People’s Campaign, 1968


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A shantytown was established in Washington, D. C. to protest economic conditions as a part of the Poor People’s Campaign.

In 1968, King and the SCLC organized the “Poor People’s Campaign” to address issues of economic justice. King traveled the country to assemble “a multiracial army of the poor” that would march on Washington to engage in nonviolent civil disobedience at the Capitol until Congress created an “economic bill of rights” for poor Americans.

The campaign was preceded by King’s final book, Where Do We Go from Here: Chaos or Community? which laid out his view of how to address social issues and poverty. King quoted from Henry George and George’s book, Progress and Poverty, particularly in support of a guaranteed basic income. The campaign culminated in a march on Washington, D.C., demanding economic aid to the poorest communities of the United States.

King and the SCLC called on the government to invest in rebuilding America’s cities. He felt that Congress had shown “hostility to the poor” by spending “military funds with alacrity and generosity.” He contrasted this with the situation faced by poor Americans, claiming that Congress had merely provided “poverty funds with miserliness.” His vision was for change that was more revolutionary than mere reform: he cited systematic flaws of “racism, poverty, militarism and materialism”, and argued that “reconstruction of society itself is the real issue to be faced.”

The Poor People’s Campaign was controversial even within the civil rights movement. Rustin resigned from the march, stating that the goals of the campaign were too broad, that its demands were unrealizable, and that he thought that these campaigns would accelerate the backlash and repression on the poor and the black.

After King’s Death

The plan to set up a shantytown in Washington, D.C., was carried out soon after the April 4 assassination. Criticism of King’s plan was subdued in the wake of his death, and the SCLC received an unprecedented wave of donations for the purpose of carrying it out. The campaign officially began in Memphis, on May 2, at the hotel where King was murdered.

Thousands of demonstrators arrived on the National Mall and established a camp they called “Resurrection City.” They stayed for six weeks.

Assassination and Aftermath


 

The Lorraine Motel, where King wasMartin_Luther_King_was_shot_here_Small_Web_view assassinated, is now the site of the National Civil Rights Museum.

On March 29, 1968, King went to Memphis, Tennessee, in support of the black sanitary public works employees, who were represented by AFSCME Local 1733. The workers had been on strike since March 12 for higher wages and better treatment. In one incident, black street repairmen received pay for two hours when they were sent home because of bad weather, but white employees were paid for the full day.

On April 3, King addressed a rally and delivered his “I’ve Been to the Mountaintop” address at Mason Temple, the world headquarters of the Church of God in Christ. King’s flight to Memphis had been delayed by a bomb threat against his plane. In the close of the last speech of his life, in reference to the bomb threat, King said the following:

And then I got to Memphis. And some began to say the threats, or talk about the threats that were out. What would happen to me from some of our sick white brothers?

Well, I don’t know what will happen now. We’ve got some difficult days ahead. But it doesn’t matter with me now. Because I’ve been to the mountaintop. And I don’t mind. Like anybody, I would like to live a long life. Longevity has its place. But I’m not concerned about that now. I just want to do God’s will. And He’s allowed me to go up to the mountain. And I’ve looked over. And I’ve seen the promised land. I may not get there with you. But I want you to know tonight, that we, as a people, will get to the promised land. So I’m happy, tonight. I’m not worried about anything. I’m not fearing any man. Mine eyes have seen the glory of the coming of the Lord.

King was booked in Room 306 at the Lorraine Motel (owned by Walter Bailey) in Memphis. Abernathy, who was present at the assassination, testified to the United States House Select Committee on Assassinations that King and his entourage stayed at Room 306 so often that it was known as the “King-Abernathy suite.” According to Jesse Jackson, who was present, King’s last words on the balcony before his assassination were spoken to musician Ben Branch, who was scheduled to perform that night at an event King was attending: “Ben, make sure you play ‘Take My Hand, Precious Lord’ in the meeting tonight. Play it real pretty.”

King was fatally shot by James Earl Ray at 6:01 p.m., April 4, 1968, as he stood on the motel’s second-floor balcony. The bullet entered through his right cheek, smashing his jaw, then traveled down his spinal cord before lodging in his shoulder. Abernathy heard the shot from inside the motel room and ran to the balcony to find King on the floor. Jackson stated after the shooting that he cradled King’s head as King lay on the balcony, but this account was disputed by other colleagues of King; Jackson later changed his statement to say that he had “reached out” for King.

After emergency chest surgery, King died at St. Joseph’s Hospital at 7:05 p.m. According to biographer Taylor Branch, King’s autopsy revealed that though only 39 years old, he “had the heart of a 60 year old”, which Branch attributed to the stress of 13 years in the civil rights movement.

Aftermath

The assassination led to a nationwide wave of race riots in Washington, D.C., Chicago, Baltimore, Louisville, Kansas City, and dozens of other cities. Presidential candidate Robert F. “Bobby” Kennedy was on his way to Indianapolis for a campaign rally when he was informed of King’s death. He gave a short speech to the gathering of supporters informing them of the tragedy and urging them to continue King’s ideal of nonviolence. James Farmer Jr., and other civil rights leaders also called for non-violent action, while the more militant Stokely Carmichael called for a more forceful response. The city of Memphis quickly settled the strike on terms favorable to the sanitation workers.

President Lyndon B. Johnson declared April 7 a national day of mourning for the civil rights leader. Vice President Hubert Humphrey attended King’s funeral on behalf of the President, as there were fears that Johnson’s presence might incite protests and perhaps violence. At his widow’s request, King’s last sermon at Ebenezer Baptist Church was played at the funeral, a recording of his “Drum Major” sermon, given on February 4, 1968. In that sermon, King made a request that at his funeral no mention of his awards and honors be made, but that it be said that he tried to “feed the hungry”, “clothe the naked”, “be right on the [Vietnam] war question”, and “love and serve humanity.”

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King’s friend Mahalia Jackson (seen here in 1964) sang at his funeral.

His good friend Mahalia Jackson sang his favorite hymn, “Take My Hand, Precious Lord”, at the funeral.

Two months after King’s death, escaped convict James Earl Ray was captured at London Heathrow Airport while trying to leave the United Kingdom on a false Canadian passport in the name of Ramon George Sneyd on his way to white-ruled Rhodesia. Ray was quickly extradited to Tennessee and charged with King’s murder. He confessed to the assassination on March 10, 1969, though he recanted this confession three days later. On the advice of his attorney Percy Foreman, Ray pleaded guilty to avoid a trial conviction and thus the possibility of receiving the death penalty. He was sentenced to a 99-year prison term. Ray later claimed a man he met in Montreal, Quebec, with the alias “Raoul” was involved and that the assassination was the result of a conspiracy. He spent the remainder of his life attempting, unsuccessfully, to withdraw his guilty plea and secure the trial he never had.

Allegations of Conspiracy

Ray’s lawyers maintained he was a scapegoat similar to the way that John F. Kennedy assassin Lee Harvey Oswald is seen by conspiracy theorists. Supporters of this assertion said that Ray’s confession was given under pressure and that he had been threatened with the death penalty. They admitted that Ray was a thief and burglar, but claimed that he had no record of committing violent crimes with a weapon. However, prison records in different U.S. cities have shown that he was incarcerated on numerous occasions for charges of armed robbery. In a 2008 interview with CNN, Jerry Ray, the younger brother of James Earl Ray, claimed that James was smart and was sometimes able to get away with armed robbery. Jerry Ray said that he had assisted his brother on one such robbery. “I never been with nobody as bold as he is,” Jerry said. “He just walked in and put that gun on somebody, it was just like it’s an everyday thing.”

Those suspecting a conspiracy in the assassination point to the two successive ballistics tests which proved that a rifle similar to Ray’s Remington Gamemaster had been the murder weapon. Those tests did not implicate Ray’s specific rifle. Witnesses near King at the moment of his death said that the shot came from another location. They said that it came from behind thick shrubbery near the boarding house—which had been cut away in the days following the assassination—and not from the boarding house window. However, Ray’s fingerprints were found on various objects (a rifle, a pair of binoculars, articles of clothing, a newspaper) that were left in the bathroom where it was determined the gunfire came from. An examination of the rifle containing Ray’s fingerprints also determined that at least one shot was fired from the firearm at the time of the assassination.

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Martin Luther King and Coretta Scott King’s sarcophagus, located on the grounds of the Martin Luther King Jr. National Historic Site in Atlanta, Georgia

In 1997, King’s son Dexter Scott King met with Ray, and publicly supported Ray’s efforts to obtain a new trial.

Two years later, Coretta Scott King, King’s widow, along with the rest of King’s family, won a wrongful death claim against Loyd Jowers and “other unknown co-conspirators.” Jowers claimed to have received $100,000 to arrange King’s assassination. The jury of six whites and six blacks found in favor of the King family, finding Jowers to be complicit in a conspiracy against King and that government agencies were party to the assassination. William F. Pepper represented the King family in the trial.

In 2000, the U.S. Department of Justice completed the investigation into Jowers’ claims but did not find evidence to support allegations about conspiracy. The investigation report recommended no further investigation unless some new reliable facts are presented. A sister of Jowers admitted that he had fabricated the story so he could make $300,000 from selling the story, and she in turn corroborated his story in order to get some money to pay her income tax.

In 2002, The New York Times reported that a church minister, Rev. Ronald Denton Wilson, claimed his father, Henry Clay Wilson—not James Earl Ray—assassinated King. He stated, “It wasn’t a racist thing; he thought Martin Luther King was connected with communism, and he wanted to get him out of the way.” Wilson provided no evidence to back up his claims.

King researchers David Garrow and Gerald Posner disagreed with William F. Pepper’s claims that the government killed King. In 2003, Pepper published a book about the long investigation and trial, as well as his representation of James Earl Ray in his bid for a trial, laying out the evidence and criticizing other accounts. King’s friend and colleague, James Bevel, also disputed the argument that Ray acted alone, stating, “There is no way a ten-cent white boy could develop a plan to kill a million-dollar black man.” In 2004, Jesse Jackson stated:

The fact is there were saboteurs to disrupt the march. And within our own organization, we found a very key person who was on the government payroll. So infiltration within, saboteurs from without and the press attacks. … I will never believe that James Earl Ray had the motive, the money and the mobility to have done it himself. Our government was very involved in setting the stage for and I think the escape route for James Earl Ray.

Legacy


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President Johnson signs the Civil Rights Act of 1964. Among the guests behind him is Martin Luther King.

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Martin Luther King Jr. statue over the west entrance of Westminster Abbey, installed in 1998

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Protesters at the 2012 Republican National Convention display King’s words and image on a banner.

King’s main legacy was to secure progress on civil rights in the U.S. Just days after King’s assassination, Congress passed the Civil Rights Act of 1968. Title VIII of the Act, commonly known as the Fair Housing Act, prohibited discrimination in housing and housing-related transactions on the basis of race, religion, or national origin (later expanded to include sex, familial status, and disability). This legislation was seen as a tribute to King’s struggle in his final years to combat residential discrimination in the U.S.

Internationally, King’s legacy includes influences on the Black Consciousness Movement and civil rights movement in South Africa. King’s work was cited by and served as an inspiration for South African leader Albert Lutuli, who fought for racial justice in his country and was later awarded the Nobel Prize. The day following King’s assassination, school teacher Jane Elliott conducted her first “Blue Eyes/Brown Eyes” exercise with her class of elementary school students in Riceville, Iowa. Her purpose was to help them understand King’s death as it related to racism, something they little understood as they lived in a predominantly white community. King has become a national icon in the history of American liberalism and American progressivism. King also influenced Irish politician and activist John Hume. Hume, the former leader of the Social Democratic and Labour Party, cited King’s legacy as quintessential to the Northern Irish civil rights movement and the signing of the Good Friday Agreement, calling him “one of my great heroes of the century.”

King’s wife, Coretta Scott King, followed in her husband’s footsteps and was active in matters of social justice and civil rights until her death in 2006. The same year that Martin Luther King was assassinated, she established the King Center in Atlanta, Georgia, dedicated to preserving his legacy and the work of championing nonviolent conflict resolution and tolerance worldwide. Their son, Dexter King, serves as the center’s chairman. Daughter Yolanda King, who died in 2007, was a motivational speaker, author and founder of Higher Ground Productions, an organization specializing in diversity training.

Even within the King family, members disagree about his religious and political views about gay, lesbian, bisexual and transgender people. King’s widow Coretta said publicly that she believed her husband would have supported gay rights. However, his youngest child, Bernice King, has said publicly that he would have been opposed to gay marriage.

On February 4, 1968, at the Ebenezer Baptist Church, in speaking about how he wished to be remembered after his death, King stated:

I’d like somebody to mention that day that Martin Luther King Jr. tried to give his life serving others. I’d like for somebody to say that day that Martin Luther King Jr. tried to love somebody.

I want you to say that day that I tried to be right on the war question. I want you to be able to say that day that I did try to feed the hungry. I want you to be able to say that day that I did try in my life to clothe those who were naked. I want you to say on that day that I did try in my life to visit those who were in prison. And I want you to say that I tried to love and serve humanity.

Yes, if you want to say that I was a drum major. Say that I was a drum major for justice. Say that I was a drum major for peace. I was a drum major for righteousness. And all of the other shallow things will not matter. I won’t have any money to leave behind. I won’t have the fine and luxurious things of life to leave behind. But I just want to leave a committed life behind.

Martin Luther King Jr. Day

Beginning in 1971, cities such as St. Louis, Missouri, and states established annual holidays to honor King. At the White House Rose Garden on November 2, 1983, President Ronald Reagan signed a bill creating a federal holiday to honor King. Observed for the first time on January 20, 1986, it is called Martin Luther King Jr. Day. Following President George H. W. Bush’s 1992 proclamation, the holiday is observed on the third Monday of January each year, near the time of King’s birthday. On January 17, 2000, for the first time, Martin Luther King Jr. Day was officially observed in all fifty U.S. states. Arizona (1992), New Hampshire (1999) and Utah (2000) were the last three states to recognize the holiday. Utah previously celebrated the holiday at the same time but under the name Human Rights Day.

Liturgical Commemorations

King is remembered as a martyr by the Episcopal Church in the United States of America with an annual feast day on the anniversary of his death, April 4. The Evangelical Lutheran Church in America commemorates King liturgically on the anniversary of his birth, January 15.

UK legacy and The Martin Luther King Peace Committee

In the United Kingdom, The Northumbria and Newcastle Universities Martin Luther King Peace Committee exists to honour King’s legacy, as represented by his final visit to the UK to receive an honorary degree from Newcastle University in 1967. The Peace Committee operates out of the chaplaincies of the city’s two universities, Northumbria and Newcastle, both of which remain centres for the study of Martin Luther King and the US civil rights movement. Inspired by King’s vision, it undertakes a range of activities across the UK as it seeks to “build cultures of peace.”

Ideas, Influences, and Political Stances


Religion

As a Christian minister, King’s main influence was Jesus Christ and the Christian gospels, which he would almost always quote in his religious meetings, speeches at church, and in public discourses. King’s faith was strongly based in Jesus’ commandment of loving your neighbor as yourself, loving God above all, and loving your enemies, praying for them and blessing them. His nonviolent thought was also based in the injunction to turn the other cheek in the Sermon on the Mount, and Jesus’ teaching of putting the sword back into its place (Matthew 26:52). In his famous Letter from Birmingham Jail, King urged action consistent with what he describes as Jesus’ “extremist” love, and also quoted numerous other Christian pacifist authors, which was very usual for him. In another sermon, he stated:

Before I was a civil rights leader, I was a preacher of the Gospel. This was my first calling and it still remains my greatest commitment. You know, actually all that I do in civil rights I do because I consider it a part of my ministry. I have no other ambitions in life but to achieve excellence in the Christian ministry. I don’t plan to run for any political office. I don’t plan to do anything but remain a preacher. And what I’m doing in this struggle, along with many others, grows out of my feeling that the preacher must be concerned about the whole man.

In his speech “I’ve Been to the Mountaintop”, he stated that he just wanted to do God’s will.

Nonviolence

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King at the 1963 Civil Rights March on Washington, D.C.

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King worked alongside Quakers such as Bayard Rustin to develop non-violent tactics.

Veteran African-American civil rights activist Bayard Rustin was King’s first regular advisor on nonviolence. King was also advised by the white activists Harris Wofford and Glenn Smiley. Rustin and Smiley came from the Christian pacifist tradition, and Wofford and Rustin both studied Gandhi’s teachings. Rustin had applied nonviolence with the Journey of Reconciliation campaign in the 1940s, and Wofford had been promoting Gandhism to Southern blacks since the early 1950s. King had initially known little about Gandhi and rarely used the term “nonviolence” during his early years of activism in the early 1950s. King initially believed in and practiced self-defense, even obtaining guns in his household as a means of defense against possible attackers. The pacifists guided King by showing him the alternative of nonviolent resistance, arguing that this would be a better means to accomplish his goals of civil rights than self-defense. King then vowed to no longer personally use arms.

In the aftermath of the boycott, King wrote Stride Toward Freedom, which included the chapter Pilgrimage to Nonviolence. King outlined his understanding of nonviolence, which seeks to win an opponent to friendship, rather than to humiliate or defeat him. The chapter draws from an address by Wofford, with Rustin and Stanley Levison also providing guidance and ghostwriting.

King was inspired by Mahatma Gandhi and his success with nonviolent activism, and as a theology student, King described Gandhi as being one of the “individuals who greatly reveal the working of the Spirit of God”. King had “for a long time … wanted to take a trip to India.” With assistance from Harris Wofford, the American Friends Service Committee, and other supporters, he was able to fund the journey in April 1959. The trip to India affected King, deepening his understanding of nonviolent resistance and his commitment to America’s struggle for civil rights. In a radio address made during his final evening in India, King reflected, “Since being in India, I am more convinced than ever before that the method of nonviolent resistance is the most potent weapon available to oppressed people in their struggle for justice and human dignity.”

Bayard Rustin’s open homosexuality, support of democratic socialism, and his former ties to the Communist Party USA caused many white and African-American leaders to demand King distance himself from Rustin, which King agreed to do. However, King agreed that Rustin should be one of the main organizers of the 1963 March on Washington.

King’s admiration of Gandhi’s nonviolence did not diminish in later years. He went so far as to hold up his example when receiving the Nobel Peace Prize in 1964, hailing the “successful precedent” of using nonviolence “in a magnificent way by Mohandas K. Gandhi to challenge the might of the British Empire … He struggled only with the weapons of truth, soul force, non-injury and courage.”

Gandhi seemed to have influenced him with certain moral principles, though Gandhi himself had been influenced by The Kingdom of God Is Within You, a nonviolent classic written by Christian anarchist Leo Tolstoy. In turn, both Gandhi and Martin Luther King had read Tolstoy, and King, Gandhi and Tolstoy had been strongly influenced by Jesus’ Sermon on the Mount. King quoted Tolstoy’s War and Peace in 1959.

Another influence for King’s nonviolent method was Henry David Thoreau’s essay On Civil Disobedience, which King read in his student days. He was influenced by the idea of refusing to cooperate with an evil system. He also was greatly influenced by the works of Protestant theologians Reinhold Niebuhr and Paul Tillich, as well as Walter Rauschenbusch’s Christianity and the Social Crisis. King also sometimes used the concept of “agape” (brotherly Christian love). However, after 1960, he ceased employing it in his writings.

Even after renouncing his personal use of guns, King had a complex relationship with the phenomenon of self-defense in the movement. He publicly discouraged it as a widespread practice, but acknowledged that it was sometimes necessary. Throughout his career King was frequently protected by other civil rights activists who carried arms, such as Colonel Stone Johnson, Robert Hayling, and the Deacons for Defense and Justice.

Politics

As the leader of the SCLC, King maintained a policy of not publicly endorsing a U.S. political party or candidate: “I feel someone must remain in the position of non-alignment, so that he can look objectively at both parties and be the conscience of both—not the servant or master of either.” In a 1958 interview, he expressed his view that neither party was perfect, saying, “I don’t think the Republican party is a party full of the almighty God nor is the Democratic party. They both have weaknesses … And I’m not inextricably bound to either party.” King did praise Democratic Senator Paul Douglas of Illinois as being the “greatest of all senators” because of his fierce advocacy for civil rights causes over the years.

King critiqued both parties’ performance on promoting racial equality:

Actually, the Negro has been betrayed by both the Republican and the Democratic party. The Democrats have betrayed him by capitulating to the whims and caprices of the Southern Dixiecrats. The Republicans have betrayed him by capitulating to the blatant hypocrisy of reactionary right wing northern Republicans. And this coalition of southern Dixiecrats and right wing reactionary northern Republicans defeats every bill and every move towards liberal legislation in the area of civil rights.

Although King never publicly supported a political party or candidate for president, in a letter to a civil rights supporter in October 1956 he said that he was undecided as to whether he would vote for Adlai Stevenson or Dwight Eisenhower, but that “In the past I always voted the Democratic ticket.” In his autobiography, King says that in 1960 he privately voted for Democratic candidate John F. Kennedy: “I felt that Kennedy would make the best president. I never came out with an endorsement. My father did, but I never made one.” King adds that he likely would have made an exception to his non-endorsement policy for a second Kennedy term, saying “Had President Kennedy lived, I would probably have endorsed him in 1964.” In 1964, King urged his supporters “and all people of goodwill” to vote against Republican Senator Barry Goldwater for president, saying that his election “would be a tragedy, and certainly suicidal almost, for the nation and the world.” King supported the ideals of democratic socialism, although he was reluctant to speak directly of this support due to the anti-communist sentiment being projected throughout the United States at the time, and the association of socialism with communism. King believed that capitalism could not adequately provide the basic necessities of many American people, particularly the African-American community.

Compensation

King stated that black Americans, as well as other disadvantaged Americans, should be compensated for historical wrongs. In an interview conducted for Playboy in 1965, he said that granting black Americans only equality could not realistically close the economic gap between them and whites. King said that he did not seek a full restitution of wages lost to slavery, which he believed impossible, but proposed a government compensatory program of $50 billion over ten years to all disadvantaged groups.

He posited that “the money spent would be more than amply justified by the benefits that would accrue to the nation through a spectacular decline in school dropouts, family breakups, crime rates, illegitimacy, swollen relief rolls, rioting and other social evils.” He presented this idea as an application of the common law regarding settlement of unpaid labor, but clarified that he felt that the money should not be spent exclusively on blacks. He stated, “It should benefit the disadvantaged of all races.”

Family Planning

On being awarded the Planned Parenthood Federation of America’s Margaret Sanger Award on 5th May, 1966, King said:

Recently, the press has been filled with reports of sightings of flying saucers. While we need not give credence to these stories, they allow our imagination to speculate on how visitors from outer space would judge us. I am afraid they would be stupefied at our conduct. They would observe that for death planning we spend billions to create engines and strategies for war. They would also observe that we spend millions to prevent death by disease and other causes. Finally they would observe that we spend paltry sums for population planning, even though its spontaneous growth is an urgent threat to life on our planet. Our visitors from outer space could be forgiven if they reported home that our planet is inhabited by a race of insane men whose future is bleak and uncertain.
There is no human circumstance more tragic than the persisting existence of a harmful condition for which a remedy is readily available. Family planning, to relate population to world resources, is possible, practical and necessary. Unlike plagues of the dark ages or contemporary diseases we do not yet understand, the modern plague of overpopulation is soluble by means we have discovered and with resources we possess.
What is lacking is not sufficient knowledge of the solution but universal consciousness of the gravity of the problem and education of the billions who are its victims…

FBI and King’s Personal Life


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An internal memo from the FBI attempting to disrupt the Poor People’s Campaign with fraudulent claims about King—it was part of the larger COINTELPRO campaign against the anti-war and civil rights movements

FBI surveillance and wiretapping

FBI director J. Edgar Hoover personally ordered surveillance of King, with the intent to undermine his power as a civil rights leader. According to the Church Committee, a 1975 investigation by the U.S. Congress, “From December 1963 until his death in 1968, Martin Luther King Jr. was the target of an intensive campaign by the Federal Bureau of Investigation to ‘neutralize’ him as an effective civil rights leader.”

The Bureau received authorization to proceed with wiretapping from Attorney General Robert F. Kennedy in the fall of 1963 and informed President John F. Kennedy, both of whom unsuccessfully tried to persuade King to dissociate himself from Stanley Levison, a New York lawyer who had been involved with Communist Party USA. Although Robert Kennedy only gave written approval for limited wiretapping of King’s phones “on a trial basis, for a month or so”, Hoover extended the clearance so his men were “unshackled” to look for evidence in any areas of King’s life they deemed worthy. The Bureau placed wiretaps on Levison’s and King’s home and office phones, and bugged King’s rooms in hotels as he traveled across the country. In 1967, Hoover listed the SCLC as a black nationalist hate group, with the instructions: “No opportunity should be missed to exploit through counterintelligence techniques the organizational and personal conflicts of the leaderships of the groups … to insure the targeted group is disrupted, ridiculed, or discredited.”

NSA monitoring of King’s communications

In a secret operation code-named “Minaret”, the National Security Agency (NSA) monitored the communications of leading Americans, including King, who criticized the U.S. war in Vietnam. A review by the NSA itself concluded that Minaret was “disreputable if not outright illegal.”

Allegations of communism

]For years, Hoover had been suspicious about potential influence of communists in social movements such as labor unions and civil rights. Hoover directed the FBI to track King in 1957, and the SCLC as it was established (it did not have a full-time executive director until 1960). The investigations were largely superficial until 1962, when the FBI learned that one of King’s most trusted advisers was New York City lawyer Stanley Levison.

The FBI feared Levison was working as an “agent of influence” over King, in spite of its own reports in 1963 that Levison had left the Party and was no longer associated in business dealings with them. Another King lieutenant, Hunter Pitts O’Dell, was also linked to the Communist Party by sworn testimony before the House Un-American Activities Committee (HUAC). However, by 1976 the FBI had acknowledged that it had not obtained any evidence that King himself or the SCLC were actually involved with any communist organizations.

For his part, King adamantly denied having any connections to communism, stating in a 1965 Playboy interview that “there are as many Communists in this freedom movement as there are Eskimos in Florida.” He argued that Hoover was “following the path of appeasement of political powers in the South” and that his concern for communist infiltration of the civil rights movement was meant to “aid and abet the salacious claims of southern racists and the extreme right-wing elements.” Hoover did not believe King’s pledge of innocence and replied by saying that King was “the most notorious liar in the country.” After King gave his “I Have A Dream” speech during the March on Washington on August 28, 1963, the FBI described King as “the most dangerous and effective Negro leader in the country.” It alleged that he was “knowingly, willingly and regularly cooperating with and taking guidance from communists.”

The attempt to prove that King was a communist was related to the feeling of many segregationists that blacks in the South were happy with their lot but had been stirred up by “communists” and “outside agitators.” However, the 1950s and ’60s civil rights movement arose from activism within the black community dating back to before World War I. King said that “the Negro revolution is a genuine revolution, born from the same womb that produces all massive social upheavals—the womb of intolerable conditions and unendurable situations.”

CIA surveillance

CIA files declassified in 2017 revealed that the agency was investigating possible links between King and Communism after a Washington Post article dated November 4, 1964 claimed he was invited to the Soviet Union and that Ralph Abernathy, spokesman for subject, refused to comment on the source of the invitation.

Adultery

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King and Malcolm X, March 26, 1964

Having concluded that King was dangerous due to communist infiltration, the FBI shifted to attempting to discredit King through revelations regarding his private life. FBI surveillance of King, some of it since made public, attempted to demonstrate that he also engaged in numerous extramarital affairs. Lyndon Johnson once said that King was a “hypocritical preacher.”

Ralph Abernathy stated in his 1989 autobiography And the Walls Came Tumbling Down that King had a “weakness for women”, although they “all understood and believed in the biblical prohibition against sex outside of marriage. It was just that he had a particularly difficult time with that temptation.” In a later interview, Abernathy said that he only wrote the term “womanizing”, that he did not specifically say King had extramarital sex and that the infidelities King had were emotional rather than sexual. Abernathy criticized the media for sensationalizing the statements he wrote about King’s affairs, such as the allegation that he admitted in his book that King had a sexual affair the night before he was assassinated. In his original wording, Abernathy had claimed he saw King coming out of his room with a lady when he awoke the next morning and later claimed that “he may have been in there discussing and debating and trying to get her to go along with the movement, I don’t know.”

In his 1986 book Bearing the Cross, David Garrow wrote about a number of extramarital affairs, including one woman King saw almost daily. According to Garrow, “that relationship … increasingly became the emotional centerpiece of King’s life, but it did not eliminate the incidental couplings … of King’s travels.” He alleged that King explained his extramarital affairs as “a form of anxiety reduction.” Garrow asserted that King’s supposed promiscuity caused him “painful and at times overwhelming guilt.” King’s wife Coretta appeared to have accepted his affairs with equanimity, saying once that “all that other business just doesn’t have a place in the very high level relationship we enjoyed.” Shortly after Bearing the Cross was released, civil rights author Howell Raines gave the book a positive review but opined that Garrow’s allegations about King’s sex life were “sensational” and stated that Garrow was “amassing facts rather than analyzing them.”

The FBI distributed reports regarding such affairs to the executive branch, friendly reporters, potential coalition partners and funding sources of the SCLC, and King’s family. The bureau also sent anonymous letters to King threatening to reveal information if he did not cease his civil rights work. The FBI–King suicide letter sent to King just before he received the Nobel Peace Prize read, in part:

Mlk-uncovered-letter

The FBI–King suicide letter,] mailed anonymously by the FBI

The American public, the church organizations that have been helping—Protestants, Catholics and Jews will know you for what you are—an evil beast. So will others who have backed you. You are done. King, there is only one thing left for you to do. You know what it is. You have just 34 days in which to do (this exact number has been selected for a specific reason, it has definite practical significant ). You are done. There is but one way out for you. You better take it before your filthy fraudulent self is bared to the nation.

A tape recording of several of King’s extramarital liaisons, excerpted from FBI wiretaps, accompanied the letter. King interpreted this package as an attempt to drive him to suicide, although William Sullivan, head of the Domestic Intelligence Division at the time, argued that it may have only been intended to “convince Dr. King to resign from the SCLC.” King refused to give in to the FBI’s threats.

In 1977, Judge John Lewis Smith Jr. ordered all known copies of the recorded audiotapes and written transcripts resulting from the FBI’s electronic surveillance of King between 1963 and 1968 to be held in the National Archives and sealed from public access until 2027.

Police observation during the assassination

A fire station was located across from the Lorraine Motel, next to the boarding house in which James Earl Ray was staying. Police officers were stationed in the fire station to keep King under surveillance. Agents were watching King at the time he was shot. Immediately following the shooting, officers rushed out of the station to the motel. Marrell McCollough, an undercover police officer, was the first person to administer first aid to King. The antagonism between King and the FBI, the lack of an all points bulletin to find the killer, and the police presence nearby led to speculation that the FBI was involved in the assassination.

Awards and Recognition


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King showing his medallion, which he received from Mayor Wagner

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Statue of King in Birmingham’s Kelly Ingram Park

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Dexter Avenue Baptist Church, where King ministered, was renamed Dexter Avenue King Memorial Baptist Church in 1978.

King was awarded at least fifty honorary degrees from colleges and universities. On October 14, 1964, King became the youngest recipient of the Nobel Peace Prize, which was awarded to him for leading nonviolent resistance to racial prejudice in the U.S. In 1965, he was awarded the American Liberties Medallion by the American Jewish Committee for his “exceptional advancement of the principles of human liberty.” In his acceptance remarks, King said, “Freedom is one thing. You have it all or you are not free.”

In 1957, he was awarded the Spingarn Medal from the NAACP. Two years later, he won the Anisfield-Wolf Book Award for his book Stride Toward Freedom: The Montgomery Story. In 1966, the Planned Parenthood Federation of America awarded King the Margaret Sanger Award for “his courageous resistance to bigotry and his lifelong dedication to the advancement of social justice and human dignity.” Also in 1966, King was elected as a fellow of the American Academy of Arts and Sciences. In November 1967 he made a 24-hour trip to the United Kingdom to receive an honorary degree from Newcastle University, being the first African-American to be so honoured by Newcastle. In a moving impromptu acceptance speech, he said

There are three urgent and indeed great problems that we face not only in the United States of America but all over the world today. That is the problem of racism, the problem of poverty and the problem of war.

In 1971 he was posthumously awarded a Grammy Award for Best Spoken Word Album for his Why I Oppose the War in Vietnam.

In 1977, the Presidential Medal of Freedom was posthumously awarded to King by President Jimmy Carter. The citation read:

Martin Luther King Jr. was the conscience of his generation. He gazed upon the great wall of segregation and saw that the power of love could bring it down. From the pain and exhaustion of his fight to fulfill the promises of our founding fathers for our humblest citizens, he wrung his eloquent statement of his dream for America. He made our nation stronger because he made it better. His dream sustains us yet.

King and his wife were also awarded the Congressional Gold Medal in 2004.

King was second in Gallup’s List of Most Widely Admired People of the 20th Century. In 1963, he was named Time Person of the Year, and in 2000, he was voted sixth in an online “Person of the Century” poll by the same magazine. King placed third in the Greatest American contest conducted by the Discovery Channel and AOL.

Five-dollar Bill

On April 20, 2016, Treasury Secretary Jacob Lew announced that the $5, $10, and $20 bills would all undergo redesign prior to 2020. Lew said that while Lincoln would remain on the obverse of the $5 bill, the reverse would be redesigned to depict various historical events that had occurred at the Lincoln Memorial. Among the planned designs are images from King’s “I Have a Dream” speech and the 1939 concert by opera singer Marian Anderson.

Works


  • Stride Toward Freedom: The Montgomery Story (1958) ISBN 978-0-06-250490-6
  • The Measure of a Man (1959) ISBN 978-0-8006-0877-4
  • Strength to Love (1963) ISBN 978-0-8006-9740-2
  • Why We Can’t Wait (1964) ISBN 978-0-8070-0112-7
  • Where Do We Go from Here: Chaos or Community? (1967) ISBN 978-0-8070-0571-2
  • The Trumpet of Conscience (1968) ISBN 978-0-8070-0170-7
  • A Testament of Hope: The Essential Writings and Speeches of Martin Luther King Jr. (1986) ISBN 978-0-06-250931-4
  • The Autobiography of Martin Luther King Jr. (1998), ed. Clayborne Carson ISBN 978-0-446-67650-2
  • “All Labor Has Dignity” (2011) ed. Michael Honey ISBN 978-0-8070-8600-1
  • “Thou, Dear God”: Prayers That Open Hearts and Spirits Collection of King’s prayers. (2011), ed. Lewis Baldwin ISBN 978-0-8070-8603-2
  • MLK: A Celebration in Word and Image Photographed by Bob Adelman, introduced by Charles Johnson ISBN 978-0-8070-0316-9

Closed-Circuit Television | CCTV

From Wikipedia, the free encyclopedia

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Surveillance cameras on the corner of a building.

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Dome CCTV cameras.

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Dome camera in a rail station

Closed-Circuit Television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint (P2MP), or mesh wired or wireless links. Though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that may need monitoring such as banks, stores, and other areas where security is needed. Though Videotelephony is seldom called “CCTV” one exception is the use of video in distance education, where it is an important tool.

Surveillance of the public using CCTV is common in many areas around the world. In recent years, the use of body worn video cameras has been introduced as a new form of surveillance, often used in law enforcement, with cameras located on a police officer’s chest or head. Video surveillance has generated significant debate about balancing its use with individuals’ right to privacy even when in public.

In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, for example when the environment is not suitable for humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, utilizing digital video recorders (DVRs), provides recording for possibly many years, with a variety of quality and performance options and extra features (such as motion detection and email alerts). More recently, decentralized IP cameras, some equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation.

There are about 350 million surveillance cameras worldwide as of 2016. About 65% of these cameras are installed in Asia. The growth of CCTV has been slowing in recent years.

Contents
1 History
1.1 Technology
1.2 Application
2 Uses
2.1 Crime prevention
2.2 Body worn
2.3 Industrial processes
2.4 Traffic monitoring
2.5 Transport safety
2.6 Sporting events
2.7 Monitor employees
2.8 Use in schools
2.9 Criminal use
2.10 Home security
3 Prevalence
3.1 United States
3.2 United Kingdom
3.3 Canada
3.4 South Africa
3.5 Around the world
4 Video surveillance and terrorism
5 Privacy
6 Technological developments
6.1 Computer-controlled analytics and identification
6.2 Retention, storage and preservation
6.3 Closed-circuit digital photography (CCDP)
6.4 IP cameras
6.5 Networking CCTV cameras
6.6 Integrated systems
6.7 Wireless security cameras
6.8 Talking CCTV
7 Countermeasures
8 CCTV camera vandalism
9 Cost
9.1 Factors affecting security camera installation cost

History


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Closed circuit TV monitoring at the Central Police Control Station, Munich Germany in 1973.

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A typical CCTV control-room set-up, Alkmaar, Netherlands in 2007.

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Desk in one of the regional control-rooms of the National Police in the Netherlands in 2017.

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CCTV control-room monitor wall for 176 open-street cameras in 2017.

The first CCTV system was installed by Siemens AG at Test Stand VII in Peenemünde, Nazi Germany in 1942, for observing the launch of V-2 rockets. The noted German engineer Walter Bruch was responsible for the technological design and installation of the system.

In the U.S. the first commercial closed-circuit television system became available in 1949, called Vericon. Very little is known about Vericon except it was advertised as not requiring a government permit.

Technology

The earliest video surveillance systems involved constant monitoring because there was no way to record and store information. The development of reel-to-reel media enabled the recording of surveillance footage. These systems required magnetic tapes to be changed manually, which was a time consuming, expensive and unreliable process, with the operator having to manually thread the tape from the tape reel through the recorder onto an empty take-up reel. Due to these shortcomings, video surveillance was not widespread. VCR technology became available in the 1970s, making it easier to record and erase information, and use of video surveillance became more common.

During the 1990s, digital multiplexing was developed, allowing several cameras to record at once, as well as time lapse and motion-only recording. This increased savings of time and money which then led to an increase in the use of CCTV.

Recently CCTV technology has been enhanced with a shift toward Internet-based products and systems, and other technological developments.

Application

In September 1968, Olean, New York was the first city in the United States to install video cameras along its main business street in an effort to fight crime. Another early appearance was in 1973 in Times Square in New York City. The NYPD installed it in order to deter crime that was occurring in the area; however, crime rates did not appear to drop much due to the cameras. Nevertheless, during the 1980s video surveillance began to spread across the country specifically targeting public areas. It was seen as a cheaper way to deter crime compared to increasing the size of the police departments. Some businesses as well, especially those that were prone to theft, began to use video surveillance. From the mid-1990s on, police departments across the country installed an increasing number of cameras in various public spaces including housing projects, schools and public parks departments. CCTV later became common in banks and stores to discourage theft, by recording evidence of criminal activity. In 1998, 3,000 CCTV systems were in use in New York City. A study by Nieto in 2008 found many businesses in the United States had invested heavily in video surveillance technology to protect products and promote safe workplace and consumer environments. A nationwide survey of a wide variety of companies found that 75 percent utilize CCTV surveillance. In private sector CCTV surveillance technology is operated in a wide variety of establishments such as in industry/manufacturing, retailing, financial/insurance/banking, transportation and distribution, utilities/communications, health care, and hotels/motels.

Experiments in the UK during the 1970s and 1980s, including outdoor CCTV in Bournemouth in 1985, led to several larger trial programs later that decade. The first use by local government was in King’s Lynn, Norfolk, in 1987. These were deemed successful in the government report “CCTV: Looking Out For You”, issued by the Home Office in 1994, and paved the way for an increase in the number of CCTV systems installed. Today, systems cover most town and city centres, and many stations, car-parks and estates.

Uses


Crime prevention

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The two-year-old James Bulger being led away by his killers, recorded on shopping centre CCTV in 1993. This narrow-bandwidth television system had a low frame rate.
iFacility Warning Sign

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Sign warning  that premises are watched by CCTV cameras.

A 2009 systematic review by researchers from Northeastern University and University of Cambridge used meta-analytic techniques to pool the average effect of CCTV on crime across 41 different studies. The results indicated that

  1. CCTV caused a significant reduction of crime by on average 16%.
    The largest effects of CCTV were found in car parks, where cameras reduced crime by on average 51%.
  2. CCTV schemes in other public settings had small and non-statistically significant effects on crime: 7% reduction in city and town centers and 23% reduction in public transport settings.
  3. When sorted by country, systems in the United Kingdom accounted for the majority of the decrease; the drop in other areas was insignificant.

The studies included in the meta-analysis used quasi-experimental evaluation designs that involve before-and-after measures of crime in experimental and control areas. However, several researchers have pointed to methodological problems associated with this research literature. First, researchers have argued that the British car park studies included in the meta-analysis cannot accurately control for the fact that CCTV was introduced simultaneously with a range of other security-related measures. Second, some have noted that, in many of the studies, there may be issues with selection bias since the introduction of CCTV was potentially endogenous to previous crime trends. In particular, the estimated effects may be biased if CCTV is introduced in response to crime trends.

It has been argued that problems of selection bias and endogeneity can be addressed by stronger research designs such as randomized controlled trials and natural experiments. A 2017 review published in Journal of Scandinavian Studies in Criminology and Crime Prevention compiles seven studies that use such research designs. The studies included in the review found that CCTV reduced crime by 24-28% in public streets and urban subway stations. It also found that CCTV could decrease unruly behaviour in football stadiums and theft in supermarkets/mass merchant stores. However, there was no evidence of CCTV having desirable effects in parking facilities or suburban subway stations. Furthermore, the review indicates that CCTV is more effective in preventing property crimes than in violent crimes.

Another question in the effectiveness of CCTV for policing is around uptime of the system; in 2013 City of Philadelphia Auditor found that the $15M system was operational only 32% of the time. There is still much research to be done to determine the effectiveness of CCTV cameras on crime prevention before any conclusions can be drawn.

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Closed-circuit video cameras in the Navy Yard complex caught gunman Aaron Alexis during his shooting rampage.

There is strong anecdotal evidence that CCTV aids in detection and conviction of offenders; indeed UK police forces routinely seek CCTV recordings after crimes. Moreover, CCTV has played a crucial role in tracing the movements of suspects or victims and is widely regarded by antiterrorist officers as a fundamental tool in tracking terrorist suspects. Large-scale CCTV installations have played a key part of the defences against terrorism since the 1970s. Cameras have also been installed on public transport in the hope of deterring crime, and in mobile police surveillance vehicles, often with automatic number plate recognition, and a network of APNI-linked cameras is used to manage London’s congestion charging zone. Even so, there is political hostility to surveillance and several commentators downplay the evidence of CCTV’s effectiveness, especially in the US. However, most of these assertions are based on poor methodology or imperfect comparisons.

A more open question is whether most CCTV is cost-effective. While low-quality domestic kits are cheap the professional installation and maintenance of high definition CCTV is expensive. Gill and Spriggs did a Cost-effectiveness analysis (CEA) of CCTV in crime prevention that showed little monetary saving with the installation of CCTV as most of the crimes prevented resulted in little monetary loss. Critics however noted that benefits of non-monetary value cannot be captured in a traditional Cost Effectiveness Analysis and were omitted from their study. A 2008 Report by UK Police Chiefs concluded that only 3% of crimes were solved by CCTV. In London, a Metropolitan Police report showed that in 2008 only one crime was solved per 1000 cameras. In some cases CCTV cameras have become a target of attacks themselves.

Cities such as Manchester in the UK are using DVR-based technology to improve accessibility for crime prevention.

In October 2009, an “Internet Eyes” website was announced which would pay members of the public to view CCTV camera images from their homes and report any crimes they witnessed. The site aimed to add “more eyes” to cameras which might be insufficiently monitored. Civil liberties campaigners criticized the idea as “a distasteful and a worrying development”.

In 2013 Oaxaca hired deaf police officers to lip read conversations to uncover criminal conspiracies.

In Singapore, since 2012, thousands of CCTV cameras have helped deter loan sharks, nab litterbugs and stop illegal parking, according to government figures.

Body Worn

In recent years, the use of body worn video cameras has been introduced for a number of uses. For example, as a new form of surveillance in law enforcement, with cameras located on a police officer’s chest or head.

Industrial Processes

Industrial processes that take place under conditions dangerous for humans are today often supervised by CCTV. These are mainly processes in the chemical industry, the interior of reactors or facilities for manufacture of nuclear fuel. Special cameras for some of these purposes include line-scan cameras and thermographic cameras which allow operators to measure the temperature of the processes. The usage of CCTV in such processes is sometimes required by law.

Traffic onitoring

Many cities and motorway networks have extensive traffic-monitoring systems, using closed-circuit television to detect congestion and notice accidents. Many of these cameras however, are owned by private companies and transmit data to drivers’ GPS systems.

The UK Highways Agency has a publicly owned CCTV network of over 3000 Pan-Tilt-Zoom cameras covering the British motorway and trunk road network. These cameras are primarily used to monitor traffic conditions and are not used as speed cameras. With the addition of fixed cameras for the active traffic management system, the number of cameras on the Highways Agency’s CCTV network is likely to increase significantly over the next few years.

The London congestion charge is enforced by cameras positioned at the boundaries of and inside the congestion charge zone, which automatically read the licence plates of cars. If the driver does not pay the charge then a fine will be imposed. Similar systems are being developed as a means of locating cars reported stolen.

Other surveillance cameras serve as traffic enforcement cameras.

Transport Safety

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Digital Video Recorder for Public Transport

A CCTV system may be installed where any example, on a subway train, CCTV cameras may allow the operator to confirm that people are clear of doors before closing them and starting the train.

Sporting Events

Many sporting events in the United States use CCTV inside the venue for fans to see the action while they are away from their seats. The cameras send the feed to a central control center where a producer selects feeds to send to the television monitors that fans can view. CCTV monitors for viewing the event by attendees are often placed in lounges, hallways, and restrooms. This use of CCTV is not used for surveillance purposes.

Monitor Employees

Organizations use CCTV to monitor the actions of workers. Every action is recorded as an information block with subtitles that explain the performed operation. This helps to track the actions of workers, especially when they are making critical financial transactions, such as correcting or cancelling of a sale, withdrawing money or altering personal information.

Actions which an employer may wish to monitor could include:

  • Scanning of goods, selection of goods, introduction of price and quantity;
  • Input and output of operators in the system when entering passwords;
  • Deleting operations and modifying existing documents;
  • Implementation of certain operations, such as financial statements or operations with cash;
  • Moving goods, revaluation scrapping and counting;
  • Control in the kitchen of fast food restaurants;
  • Change of settings, reports and other official functions.

Each of these operations is transmitted with a description, allowing detailed monitoring of all actions of the operator. Some systems allow the user to search for a specific event by time of occurrence and text description, and perform statistical evaluation of operator behaviour. This allows the software to predict deviations from the standard workflow and record only anomalous behaviour.

Use in Schools

In the United States, Britain, Australia and New Zealand, CCTV is widely used in schools due to its success in preventing bullying, vandalism, monitoring visitors and maintaining a record of evidence in the event of a crime. There are some restrictions on installation, with cameras not being installed in an area where there is a “reasonable expectation of privacy”, such as bathrooms, gym locker areas and private offices (unless consent by the office occupant is given). Сameras are generally acceptable in hallways, parking lots, front offices where students, employees, and parents come and go, gymnasiums, cafeterias, supply rooms and classrooms. The installation of cameras in classrooms may be objected to by some teachers.

Criminal Use

Criminals may use surveillance cameras to monitor the public. For example, a hidden camera at an ATM can capture people’s PINs as they are entered, without their knowledge. The devices are small enough not to be noticed, and are placed where they can monitor the keypad of the machine as people enter their PINs. Images may be transmitted wirelessly to the criminal.

Home Security

In the early to mid 2000s, companies including ADT, LiveWatch, and SimpliSafe started offering CCTVs to the consumer market for home safety and security. Cameras typically come as part of alarm monitoring packages that may also include fire and flood detection.

Prevalence


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A crowdsourced map of CCTV cameras near Grande Arche using OpenStreetMap data.

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Surveillance camera mounted on the walls of Rosenbad, one of the Swedish’s government buildings in central Stockholm, which houses the Prime Minister’s office. One of the parliament’s (Riksdagen) building can be seen in the background.

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A surveillance camera, aimed at a public street (Kungsgatan) in Stockholm, Sweden, mounted on top of the pole.

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The headquarters of the United Nations in New York, with cameras visible on the side of the UN General Assembly building.

There are an estimated 350 million surveillance cameras worldwide as of 2016 compared with about 160 million in 2012. About 65% of these cameras are installed in Asia. The growth of CCTV has been slowing in recent years.

United States

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Surveillance camera mounted on a tripod in Sunriver, Oregon.

There were an estimated 30 million surveillance cameras in the United States in 2011. Video surveillance has been common in the United States since the 1990s; for example, one manufacturer reported net earnings of $120 million in 1995. With lower cost and easier installation, sales of home security cameras increased in the early 21st century. Following the September 11 attacks, the use of video surveillance in public places became more common to deter future terrorist attacks. Under the Homeland Security Grant Program, government grants are available for cities to install surveillance camera networks. In 2009, there were an estimated 15,000 CCTV systems in Chicago, many linked to an integrated camera network. New York City’s Domain Awareness System has 6,000 video surveillance cameras linked together, there are over 4,000 cameras on the subway system (although nearly half of them do not work), and two-thirds of large apartment and commercial buildings use video surveillance cameras. In the Washington D.C.-area, there are more than 30,000 surveillance cameras in schools, and the Metro has nearly 6,000 cameras in use across the system. 

United Kingdom

In the United Kingdom, the vast majority of CCTV cameras are not operated by government bodies, but by private individuals or companies, especially to monitor the interiors of shops and businesses. According to 2011 Freedom of Information Act requests, the total number of local government operated CCTV cameras was around 52,000 over the entirety of the UK.

Although specific legalities of running a home CCTV system in the UK are rather vague there are published rules and regulations that although are mostly common sense, do include some laws that most people may not be aware of, including registering with ICO as a data controller if any CCTV camera catch images of any of the public on, or outside of your property.

An article published in CCTV Image magazine estimated the number of private and local government operated cameras in the United Kingdom was 1.85 million in 2011. The estimate was based on extrapolating from a comprehensive survey of public and private cameras within the Cheshire Constabulary jurisdiction. This works out as an average of one camera for every 32 people in the UK, although the density of cameras varies greatly from place to place. The Cheshire report also claims that the average person on a typical day would be seen by 70 CCTV cameras.

The Cheshire figure is regarded as more dependable than a previous study by Michael McCahill and Clive Norris of UrbanEye published in 2002. Based on a small sample in Putney High Street, McCahill and Norris extrapolated the number of surveillance cameras in Greater London to be around 500,000 and the total number of cameras in the UK to be around 4,200,000. According to their estimate the UK has one camera for every 14 people. Although it has been acknowledged for several years that the methodology behind this figure is flawed, it has been widely quoted. Furthermore, the figure of 500,000 for Greater London is often confused with the figure for the police and local government operated cameras in the City of London, which was about 650 in 2011.

The CCTV User Group estimated that there were around 1.5 million private and local government CCTV cameras in city centres, stations, airports, and major retail areas in the UK. This figure does not include the smaller surveillance systems such as those that may be found in local corner shops and is therefore broadly in line with the Cheshire report.

Research conducted by the Scottish Centre for Crime and Justice Research and based on a survey of all Scottish local authorities, identified that there are over 2,200 public space CCTV cameras in Scotland.

Defra made it legal in 2017 to have all Abbatoirs in the UK now covered by CCTV to prevent cruelty to animals during the slaughter process.

Canada

Project SCRAM is a policing effort by the Halton Regional Police Service to register and help consumers understand the complex issues of privacy and safety that confront households when dealing with installations of home security systems. “The SCRAM program enables community members to voluntarily identify and register their residential video surveillance equipment through a simple, secure, confidential, online form.”. It has not been extended to commercial businesses. A wide-ranging effort to provide registration and monitoring of home security and systems. “Security camera registration and monitoring is a community-based crime prevention opportunity and investigative tool that enlists the help of residents and can help prevent crime on three levels. Residential video surveillance cameras can deter criminals from entering the area, can prevent crimes from occurring and help solve crimes by providing valuable evidence to the police.”

South Africa

In South Africa due to the high crime rate CCTV surveillance is widely prevalent but the country has been slow to implement the latest technology e.g. the first IP camera was released in 1996 by Axis Communications but IP cameras didn’t arrive in South Africa till 2008. In order to regulate the number of suppliers in 2001 the Private Security Industry Regulation Act was passed requiring all security companies to be registered with the Private Security Industry Regulatory Authority (PSIRA).

Around the World

In Latin America, the CCTV market is growing rapidly with the increase of property crime. In Asia, different human activities attracted the use of surveillance camera systems and services, including but not limited to business and related industries, transportation, sports, and care for the environment.

Video Surveillance and Terrorism


Material collected by surveillance cameras has been used as a tool in post-event forensics to identify tactics, techniques and perpetrators of terrorist attacks. Furthermore, there are various projects − such as INDECT − that aim to detect suspicious behaviours of individuals and crowds. It has been argued that terrorists won’t be deterred by cameras, that terror attacks aren’t really the subject of the current use of video surveillance and that terrorists might even see it as an extra channel for propaganda and publication of their acts. In Germany calls for extended video surveillance by the country’s main political parties, SPD, CDU and CSU have been dismissed as “little more than a placebo for a subjective feeling of security”.

Privacy


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A mobile closed-circuit TV van monitoring a street market

Many civil liberties campaign groups, academics and consultants have published research papers into CCTV systems. Opponents of CCTV point out the loss of privacy of people under surveillance, and the negative impact of surveillance on civil liberties. Furthermore, they argue that CCTV displaces crime, rather than reducing it. Critics often dub CCTV as “Big Brother surveillance”, a reference to George Orwell’s novel Nineteen Eighty-Four, which featured a two-way telescreen in every home through which The Party would monitor the populace.

Proponents of CCTV cameras argue that cameras are effective at deterring and solving crime, and that appropriate regulation and legal restrictions on surveillance of public spaces can provide sufficient protections so that an individual’s right to privacy can reasonably be weighed against the benefits of surveillance. However, anti-surveillance activists have held that there is a right to privacy in public areas. Furthermore, while it is true that there may be scenarios wherein a person’s right to public privacy can be both reasonably and justifiably compromised, some scholars have argued that such situations are so rare as to not sufficiently warrant the frequent compromising of public privacy rights that occurs in regions with widespread CCTV surveillance. For example, in her book Setting the Watch: Privacy and the Ethics of CCTV Surveillance, Beatrice von Silva-Tarouca Larsen argues that CCTV surveillance is ethically permissible only in “certain restrictively defined situations”, such as when a specific location has a “comprehensively documented and significant criminal threat”. Her central reasoning is that widespread CCTV surveillance violates citizens’ rights to privacy and anonymity within the public sphere by jeopardizing both their liberty and dignity. She concludes that CCTV surveillance should therefore be reserved for specific circumstances in which there are clear and reasonably demonstrated benefits to its implementation and few ethical compromises.

In the United States, the Constitution does not explicitly include the right to privacy although the Supreme Court has said several of the amendments to the Constitution implicitly grant this right. Access to video surveillance recordings may require a judge’s writ, which is readily available. However, there is little legislation and regulation specific to video surveillance.

All countries in the European Union are signatories to the European Convention on Human Rights which protects individual rights including the right to privacy. The EU’s Data Protection Directive regulates access to personal data including CCTV recordings. This directive is translated into the national law of each country within the European Union.

In the United Kingdom the Data Protection Act 1998 imposes legal restrictions on the uses of CCTV recordings and mandates the registration of CCTV systems with the Data Protection Agency. In 2004, the successor to the Data Protection Agency, the Information Commissioner’s Office clarified that this required registration of all CCTV systems with the Commissioner, and prompt deletion of archived recordings. However, subsequent case law (Durant vs. FSA) limited the scope of the protection provided by this law, and not all CCTV systems are currently regulated. Nonetheless, private sector personnel in the UK who operate or monitor CCTV devices or systems are considered security guards and have been made subject to state licensing.

A 2007 report by the UK Information Commissioner’s Office, highlighted the need for the public to be made more aware of the growing use of surveillance and the potential impact on civil liberties. In the same year, a campaign group claimed the majority of CCTV cameras in the UK are operated illegally or are in breach of privacy guidelines. In response, the Information Commissioner’s Office rebutted the claim and added that any reported abuses of the Data Protection Act are swiftly investigated. Even if there are some concerns arising from the use of CCTV such as involving privacy, more commercial establishments are still installing CCTV systems in the UK.

In 2012, the UK government enacted the Protection of Freedoms Act which includes several provisions related to controlling and restricting the collection, storage, retention, and use of information about individuals. Under this Act, the Home Office published a code of practice in 2013 for the use of surveillance cameras by government and local authorities. The aim of the code is to help ensure their use is “characterised as surveillance by consent, and such consent on the part of the community must be informed consent and not assumed by a system operator. Surveillance by consent should be regarded as analogous to policing by consent.”

In Canada, the use of video surveillance has grown very rapidly. In Ontario, both the municipal and provincial versions of the Freedom of Information and Protection of Privacy Act outline very specific guidelines that control how images and information can be gathered by this method and or released. In some areas in Ontario the use of surveillance cameras are strictly prohibited and controlled based on individual by-laws.

Technological Developments


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Surveillance camera at London Heathrow Airport with a wiper for clear images during rain

Computer-controlled Analytics and Identification

Computer-controlled cameras can identify, track, and categorize objects in their field of view.

Video content analysis (VCA) is the capability of automatically analyzing video to detect and determine temporal events not based on a single image. As such, it can be seen as the automated equivalent of the biological visual cortex.

A system using VCA can recognize changes in the environment and even identify and compare objects in the database using size, speed, and sometimes colour. The camera’s actions can be programmed based on what it is “seeing”. For example; an alarm can be issued if an object has moved in a certain area, or if a painting is missing from a wall, or if a smoke or fire is detected, or if running people are detected, or if fallen people are detected and if someone has spray painted the lens, as well as video loss, lens cover, defocus and other so called camera tampering events.

VCA analytics can also be used to detect unusual patterns in an environment. The system can be set to detect anomalies in a crowd, for instance a person moving in the opposite direction in airports where passengers are supposed to walk only in one direction out of a plane or in a subway where people are not supposed to exit through the entrances.

VCA can track people on a map by calculating their position from the images. It is then possible to link many cameras and track a person through an entire building or area. This can allow a person to be followed without having to analyze many hours of film. Currently the cameras have difficulty identifying individuals from video alone, but if connected to a key-card system, identities can be established and displayed as a tag over their heads on the video.

There is also a significant difference in where the VCA technology is placed, either the data is being processed within the cameras (on the edge) or by a centralized server. Both technologies have their pros and cons.

A facial recognition system is a computer application for automatically identifying or verifying a person from a digital image or a video frame from a video source. One of the ways to do this is by comparing selected facial features from the image and a facial database.
The combination of CCTV and facial recognition has been tried as a form of mass surveillance, but has been ineffective because of the low discriminating power of facial recognition technology and the very high number of false positives generated. This type of system has been proposed to compare faces at airports and seaports with those of suspected terrorists or other undesirable entrants.

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CCTV surveillance camera with IP audio PA horn watching from a high steel pole

Computerized monitoring of CCTV images is under development, so that a human CCTV operator does not have to endlessly look at all the screens, allowing an operator to observe many more CCTV cameras. These systems do not observe people directly. Insta Types of body-movement behavior, or particular types of clothing or baggage.

To many, the development of CCTV in public areas, linked to computer databases of people’s pictures and identity, presents a serious breach of civil liberties. Conservative critics fear the possibility that one would no longer have anonymity in public places. Demonstrations or assemblies in public places could be affected as the state would be able to collate lists of those leading them, taking part, or even just talking with protesters in the street.

Comparatively harmless are people counter systems. They use CCTV equipment as front end eyes of devices which perform shape recognition technology in order to identify objects as human beings and count people passing pre-defined areas.

Retention, Storage and Preservation

Most CCTV systems may record and store digital video and images to a digital video recorder (DVR) or, in the case of IP cameras, directly to a server, either on-site or offsite.

There is a cost in the retention of the images produced by CCTV systems. The amount and quality of data stored on storage media is subject to compression ratios, images stored per second, image size and is effected by the retention period of the videos or images. DVRs store images in a variety of proprietary file formats. Recordings may be retained for a preset amount of time and then automatically archived, overwritten or deleted, the period being determined by the organisation that generated them.

Closed-circuit digital photography (CCDP)

Closed-circuit digital photography (CCDP) is more suited for capturing and saving recorded high-resolution photographs, whereas closed-circuit television (CCTV) is more suitable for live-monitoring purposes.

However, an important feature of some CCTV systems is the ability to take high resolution images of the camera scene, e.g. on a time lapse or motion-detection basis. Images taken with a digital still camera often have higher resolution than those taken with some video cameras. Increasingly, low-cost high-resolution digital still cameras can also be used for CCTV purposes.

Images may be monitored remotely when the computer is connected to a network.

IP Cameras

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Easy Connect Wireless IP camera

A growing branch in CCTV is internet protocol cameras (IP cameras). It is estimated that 2014 was the first year that IP cameras outsold analog cameras. IP cameras use the Internet Protocol (IP) used by most Local Area Networks (LANs) to transmit video across data networks in digital form. IP can optionally be transmitted across the public internet, allowing users to view their cameras through any internet connection available through a computer or a phone, this is considered remote access. For professional or public infrastructure security applications, IP video is restricted to within a private network or VPN, or can be recorded onto a remote server.

Networking CCTV cameras

The city of Chicago operates a networked video surveillance system which combines CCTV video feeds of government agencies with those of the private sector, installed in city buses, businesses, public schools, subway stations, housing projects etc. Even homeowners are able to contribute footage. It is estimated to incorporate the video feeds of a total of 15,000 cameras.

The system is used by Chicago’s Office of Emergency Management in case of an emergency call: it detects the caller’s location and instantly displays the real-time video feed of the nearest security camera to the operator, not requiring any user intervention. While the system is far too vast to allow complete real-time monitoring, it stores the video data for later usage in order to provide possible evidence in criminal cases.

New York City has a similar network called the Domain Awareness System.

London also has a network of CCTV systems that allows multiple authorities to view and control CCTV cameras in real time. The system allows authorities including the Metropolitan Police Service, Transport for London and a number of London boroughs to share CCTV images between them. It uses a network protocol called Television Network Protocol to allow access to many more cameras than each individual system owner could afford to run and maintain.

The Glynn County Police Department uses a wireless mesh-networked system of portable battery-powered tripods for live megapixel video surveillance and central monitoring of tactical police situations. The systems can be used either on a stand-alone basis with secure communications to nearby police laptops, or within a larger mesh system with multiple tripods feeding video back to the command vehicle via wireless, and to police headquarters via 3G.

Integrated Systems

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An integrated systems unit.

Integrated systems allow different security systems, like CCTV, access control, intruder alarms and intercoms to operate together. For example, when an intruder alarm is activated, CCTV cameras covering the intrusion area are recorded at a higher frame rate and transmitted to an Alarm Receiving Centre.

Wireless Security Cameras

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Wireless security camera

Many consumers are turning to wireless security cameras for home surveillance. Wireless cameras do not require a video cable for video/audio transmission, simply a cable for power. Wireless cameras are also easy and inexpensive to install, but lack the reliability of hard-wired cameras. Previous generations of wireless security cameras relied on analog technology; modern wireless cameras use digital technology which delivers crisper audio, sharper video, and a secure and interference-free signal.

Talking CCTV

In Wiltshire, UK, 2003, a pilot scheme for what is now known as “Talking CCTV” was put into action; allowing operators of CCTV cameras to order offenders to stop what they were doing, ranging from ordering subjects to pick up their rubbish and put it in a bin to ordering groups of vandals to disperse. In 2005 Ray Mallon, the mayor and former senior police officer of Middlesbrough implemented “Talking CCTV” in his area.

Other towns have had such cameras installed. In 2007 several of the devices were installed in Bridlington town centre, East Riding of Yorkshire.

Countermeasures


Due to the widespread implementation of surveillance cameras, glasses are being built which can defeat CCTV cameras. In December 2016 a form of anti-CCTV and facial recognition sunglasses called ‘reflectacles’ were invented by a custom-spectacle-craftsmen based in Chicago named Scott Urban. They reflect infrared and, optionally, visible light which makes the users face a white blur to cameras. The project easily surpassed its funding goal of $28,000 and reflectacles will be commercially available by June 2017.

CCTV Camera Vandalism


Unless physically protected, CCTV cameras have been found to be vulnerable against a variety of (mostly illegal) tactics:

  • Some people will deliberately destroy cameras. Some cameras can come with dust-tight, pressurized, explosion proof, and bullet-resistant housings.
  • Spraying substances over the lens can make the image too blurry to view.
  • Lasers can blind or damage them. However, since most lasers are monochromatic, color filters can reduce the effect of laser pointers. But filters also impair image quality and overall light sensitivity of cameras (see laser safety article for details on issues with filters). Also, complete protection from lasers of any wavelength would require use of completely black filters, rendering the camera useless.

Cost


The security camera installation cost in Los Angeles, United States ranges from US$300 to US$3,500. On average, however, the cost can be anywhere from US$893 – US$2,267. The price will go up depending on specific requirements or the extent of the security that will be required.

Factors affecting security camera installation cost

Among other factors, the specific type of camera being used has the most significant impact on its cost. The average cost of two digital cameras packaged with an LCD monitor is around US$450. Different brands can also have different prices. The type of technology used also has an impact of security camera installation cost. Wireless camera systems are generally more expensive than their wired counterparts.

The specific type of software that is being used also has a role to play on its price. On average, professional level software is offered at US$75, with some of them requiring annual fees for membership. Network attached storage or DVR, used for storing recorded video, will also be part of the cost. On average, that can cost about US$499. This will depend on the storage capacity and other features of the device chosen by the user.

Personal Computer (English)

From Wikipedia, the free encyclopedia

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Children being taught how to use a notebook personal computer; a desktop personal computer’s CRTmonitor, keyboard, and mouse are visible in the background.

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An artist’s depiction of a 2000s-era personal computer of the desktop style, which includes a metal case with the computing components, a display monitor and a keyboard (mouse not shown).

A personal computer (PC) is a multi-purpose computer whose size, capabilities, and price make it feasible for individual use. PCs are intended to be operated directly by an end user, rather than by a computer expert or technician. Computer time-sharing models that were typically used with larger, more expensive minicomputer and mainframe systems, to enable them be used by many people at the same time, are not used with PCs.

Early computer owners in the 1960s, invariably institutional or corporate, had to write their own programs to do any useful work with the machines. In the 2010s, personal computer users have access to a wide range of commercial software, free software (“freeware”) and free and open-source software, which are provided in ready-to-run form. Software for personal computers is typically developed and distributed independently from the hardware or OS manufacturers. Many personal computer users no longer need to write their own programs to make any use of a personal computer, although end-user programming is still feasible. This contrasts with mobile systems, where software is often only available through a manufacturer-supported channel, and end-user program development may be discouraged by lack of support by the manufacturer.

Since the early 1990s, Microsoft operating systems and Intel hardware have dominated much of the personal computer market, first with MS-DOS and then with Windows. Alternatives to Microsoft’s Windows operating systems occupy a minority share of the industry. These include Apple’s macOS and free open-source Unix-like operating systems such as Linux. Advanced Micro Devices (AMD) provides the main alternative to Intel’s processors.

Contents
1 Terminology
2 History
3 Types
3.1 Stationary
3.1.1 Workstation
3.1.2 Desktop computer
3.1.2.1 Gaming computer
3.1.2.2 All-in-one
3.1.3 Nettop
3.1.4 Home theater PC
3.2 Portable
3.2.1 Laptop
3.2.1.1 Desktop replacement
3.2.2 Netbook
3.2.3 Tablet
3.2.4 Ultra-mobile PC
3.2.5 Pocket PC
4 Hardware
4.1 Computer case
4.2 Power supply unit
4.3 Processor
4.4 Motherboard
4.5 Main memory
4.6 Storage drive
4.7 Visual display unit
4.8 Video card
4.9 Keyboard
4.10 Mouse
4.11 Other components
5 Software
5.1 Operating system
5.1.1 Microsoft Windows
5.1.2 macOS
5.1.3 Linux
5.2 Applications
5.3 Gaming
6 Sales
6.1 Market share
6.2 Average selling price
7 Use
7.1 Toxicity
7.2 Electronic waste regulation

Terminology


PC” is an initialism for “Personal Computer“. The IBM Personal Computer incorporated the designation in its model name, but IBM has not used this brand for many years. It is sometimes useful, especially in a marketing context, to distinguish personal computers of the “IBM Personal Computer” family from personal computers made by other manufacturers. For example, “PC” is used in contrast with “Mac”, an Apple Macintosh computer. This sense of the word is used in the Get a Mac advertisement campaign that ran between 2006 and 2009, as well as its rival, I’m a PC campaign, that appeared in 2008. Since none of these Apple products were mainframes or time-sharing systems, they were all “personal computers” and not “PC” (brand) computers

History


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Commodore PET in 1983 (at American Museum of Science and Energy), an early example of a personal computer

The “brain” [computer] may one day come down to our level [of the common people] and help with our income-tax and book-keeping calculations. But this is speculation and there is no sign of it so far.

— British newspaper The Star in a June 1949 news article about the EDSAC computer, long before the era of the personal computers.
In the history of computing there were many examples of computers designed to be used by one person, as opposed to terminals connected to mainframe computers. It took a while for computers to be developed that meet the modern definition of a “personal computers”, one that is designed for one person, is easy to use, and is cheap enough for an individual to buy.

Using the narrow definition of “operated by one person”, the first personal computer was the ENIAC which became operational in 1946. It did not meet further definitions of affordable or easy to use.

An example of an early single-user computer was the LGP-30, created in 1956 by Stan Frankel and used for science and engineering as well as basic data processing. It came with a retail price of $46,000—equivalent to about $414,000 today.

Introduced at the 1965 New York Worlds Fair, the Programma 101 was a printing programmable calculator described in advertisements as a “desktop computer”. It was manufactured by the Italian company Olivetti and invented by the Italian engineer Pier Giorgio Perotto, inventor of the magnetic card system for program storage.

The Soviet MIR series of computers was developed from 1965 to 1969 in a group headed by Victor Glushkov. It was designed as a relatively small-scale computer for use in engineering and scientific applications and contained a hardware implementation of a high-level programming language. Another innovative feature for that time was the user interface combining a keyboard with a monitor and light pen for correcting texts and drawing on screen. In what was later to be called the Mother of All Demos, SRI researcher Douglas Engelbart in 1968 gave a preview of what would become the staples of daily working life in the 21st century: e-mail, hypertext, word processing, video conferencing and the mouse. The demonstration required technical support staff and a mainframe time-sharing computer that were far too costly for individual business use at the time.

By the early 1970s, people in academic or research institutions had the opportunity for single-person use of a computer system in interactive mode for extended durations, although these systems would still have been too expensive to be owned by a single person. Early personal computers—generally called microcomputers—were often sold in a kit form and in limited volumes, and were of interest mostly to hobbyists and technicians. Minimal programming was done with toggle switches to enter instructions, and output was provided by front panel lamps. Practical use required adding peripherals such as keyboards, computer displays, disk drives, and printers. Micral N was the earliest commercial, non-kit microcomputer based on a microprocessor, the Intel 8008. It was built starting in 1972 and few hundred units were sold. This had been preceded by the Datapoint 2200 in 1970, for which the Intel 8008 had been commissioned, though not accepted for use. The CPU design implemented in the Datapoint 2200 became the basis for x86 architecture used in the original IBM PC and its descendants.

In 1973 the IBM Los Gatos Scientific Center developed a portable computer prototype called SCAMP (Special Computer APL Machine Portable) based on the IBM PALM processor with a Philips compact cassette drive, small CRT and full function keyboard. SCAMP emulated an IBM 1130 minicomputer in order to run APL\1130. In 1973 APL was generally available only on mainframe computers, and most desktop sized microcomputers such as the Wang 2200 or HP 9800 offered only BASIC. Because SCAMP was the first to emulate APL\1130 performance on a portable, single user computer, PC Magazine in 1983 designated SCAMP a “revolutionary concept” and “the world’s first personal computer”. This seminal, single user portable computer now resides in the Smithsonian Institution, Washington, D.C.. Successful demonstrations of the 1973 SCAMP prototype led to the IBM 5100 portable microcomputer launched in 1975 with the ability to be programmed in both APL and BASIC for engineers, analysts, statisticians and other business problem-solvers. In the late 1960s such a machine would have been nearly as large as two desks and would have weighed about half a ton.

Another desktop portable APL machine, the MCM/70, was demonstrated in 1973 and shipped in 1974. It used the Intel 8008 processor.

A seminal step in personal computing was the 1973 Xerox Alto, developed at Xerox’s Palo Alto Research Center (PARC). It had a graphical user interface (GUI) which later served as inspiration for Apple Computer’s Macintosh, and Microsoft’s Windows operating system. The Alto was a demonstration project, not commercialized, as the parts were too expensive to be affordable.

Also in 1973 Hewlett Packard introduced fully BASIC programmable microcomputers that fit entirely on top of a desk, including a keyboard, a small one-line display and printer. The Wang 2200 microcomputer of 1973 had a full-size cathode ray tube (CRT) and cassette tape storage. These were generally expensive specialized computers sold for business or scientific uses. The introduction of the microprocessor, a single chip with all the circuitry that formerly occupied large cabinets, led to the proliferation of personal computers after 1975.

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Altair 8800 Computer

1974 saw the introduction of what is considered by many to be the first true “personal computer”, the Altair 8800 created by Micro Instrumentation and Telemetry Systems (MITS). Based on the 8-bit Intel 8080 Microprocessor, the Altair is widely recognized as the spark that ignited the microcomputer revolution as the first commercially successful personal computer. The computer bus designed for the Altair was to become a de facto standard in the form of the S-100 bus, and the first programming language for the machine was Microsoft’s founding product, Altair BASIC.

In 1976, Steve Jobs and Steve Wozniak sold the Apple I computer circuit board, which was fully prepared and contained about 30 chips. The Apple I computer differed from the other kit-style hobby computers of era. At the request of Paul Terrell, owner of the Byte Shop, Jobs and Wozniak were given their first purchase order, for 50 Apple I computers, only if the computers were assembled and tested and not a kit computer. Terrell wanted to have computers to sell to a wide range of users, not just experienced electronics hobbyists who had the soldering skills to assemble a computer kit. The Apple I as delivered was still technically a kit computer, as it did not have a power supply, case, or keyboard when it was delivered to the Byte Shop.

The first successfully mass marketed personal computer was the Commodore PET introduced in January 1977. However, it was back-ordered and not available until later in the year. Five months later (June), the Apple II (usually referred to as the “Apple”) was introduced, and the TRS-80 from Tandy Corporation / Tandy Radio Shack in summer 1977, delivered in September in a small number. Mass-market ready-assembled computers allowed a wider range of people to use computers, focusing more on software applications and less on development of the processor hardware.

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IBM 5150, released in 1981

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The 8-bit PMD 85 personal computer produced in 1985–1990 by the Tesla company in the former socialist Czechoslovakia. This computer was produced locally (in Piešťany) due to a lack of foreign currency with which to buy systems from the West.

During the early 1980s, home computers were further developed for household use, with software for personal productivity, programming and games. They typically could be used with a television already in the home as the computer display, with low-detail blocky graphics and a limited color range, and text about 40 characters wide by 25 characters tall. Sinclair Research, a UK company, produced the ZX Series—the ZX80 (1980), ZX81 (1981), and the ZX Spectrum; the latter was introduced in 1982, and totaled 8 million unit sold. Following came the Commodore 64, totaled 17 million units sold.

In the same year, the NEC PC-98 was introduced, which was a very popular personal computer that sold in more than 18 million units. Another famous personal computer, the revolutionary Amiga 1000, was unveiled by Commodore on July 23, 1985. The Amiga 1000 featured a multitasking, windowing operating system, color graphics with a 4096-color palette, stereo sound, Motorola 68000 CPU, 256 KB RAM, and 880 KB 3.5-inch disk drive, for US$1,295.

Somewhat larger and more expensive systems (for example, running CP/M), or sometimes a home computer with additional interfaces and devices, although still low-cost compared with minicomputers and mainframes, were aimed at office and small business use, typically using “high resolution” monitors capable of at least 80 column text display, and often no graphical or color drawing capability. Workstations were characterized by high-performance processors and graphics displays, with large-capacity local disk storage, networking capability, and running under a multitasking operating system. Eventually, due to the influence of the IBM PC on the personal computer market, personal computers and home computers lost any technical distinction. Business computers acquired color graphics capability and sound, and home computers and game systems users used the same processors and operating systems as office workers. Mass-market computers had graphics capabilities and memory comparable to dedicated workstations of a few years before. Even local area networking, originally a way to allow business computers to share expensive mass storage and peripherals, became a standard feature of personal computers used at home.

In 1982 “The Computer” was named Machine of the Year by Time magazine. In the 2010s, several companies such as Hewlett-Packard and Sony sold off their PC and laptop divisions. As a result, the personal computer was declared dead several times during this period.

Types


Stationary

Workstation

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Sun SPARCstation 1+ from the early 1990s, with a 25 MHz RISC processor

A workstation is a high-end personal computer designed for technical, mathematical, or scientific applications. Intended primarily to be used by one person at a time, they are commonly connected to a local area network and run multi-user operating systems. Workstations are used for tasks such as computer-aided design, drafting and modeling, computation-intensive scientific and engineering calculations, image processing, architectural modeling, and computer graphics for animation and motion picture visual effects.

Desktop Computer

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A Dell OptiPlex desktop computer

Prior to the widespread usage of PCs, a computer that could fit on a desk was remarkably small, leading to the “desktop” nomenclature. More recently, the phrase usually indicates a particular style of computer case. Desktop computers come in a variety of styles ranging from large vertical tower cases to small models which can be tucked behind an LCD monitor. In this sense, the term “desktop” refers specifically to a horizontally oriented case, usually intended to have the display screen placed on top to save desk space. Most desktop computers have an external display screen and an external keyboard, which are typically plugged into the computer case.

Gaming Computer

A gaming computer is a standard desktop computer that typically has high-performance hardware, such as a more powerful video card, processor and memory, in order to handle the requirements of demanding video games, which are often simply called “PC games”. A number of companies, such as Alienware, manufacture prebuilt gaming computers, and companies such as Razer and Logitech market mice, keyboards and headsets geared toward gamers.

All-in-one

All-in-one PCs (also known as single-unit PCs) are a subtype of desktop computer that combines the monitor and processor within a single unit. A separate keyboard and mouse are standard input devices, with some monitors including touchscreen capability. The processor and other working components are typically reduced in size relative to standard desktops, located behind the monitor, and configured similarly to laptops.

Nettop

A subtype of desktops, called nettops, was introduced by Intel in February 2008, characterized by low cost and lean functionality. A similar subtype of laptops (or notebooks) is the netbook, described below. The product line features the new Intel Atom processor, which specifically enables nettops to consume less power and fit into small enclosures.

Home Theater PC

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An Antec Fusion V2 home theater PC, with a keyboard placed on top of it

A home theater PC (HTPC) is a convergence device that combines the functions of a personal computer and a digital video recorder. It is connected to a TV set or an appropriately sized computer display, and is often used as a digital photo viewer, music and video player, TV receiver, and digital video recorder. HTPCs are also referred to as media center systems or media servers. The general goal in a HTPC is usually to combine many or all components of a home theater setup into one box. More recently, HTPCs gained the ability to connect to services providing on-demand movies and TV shows. HTPCs can be purchased pre-configured with the required hardware and software needed to add television programming to the PC, or can be cobbled together out of discrete components, what is commonly done with software support from MythTV, Windows Media Center, GB-PVR, SageTV, Famulent or LinuxMCE.

Portable

Laptop

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A laptop computer

A laptop computer, also called a notebook, is a small personal computer designed for portability. Usually, all of the hardware and interfaces needed to operate a laptop, such as the graphics card, audio devices or USB ports (previously parallel and serial ports), are built into a single unit. Laptops usually have “clamshell” design, in which the keyboard and computer components are on one panel and a flat display screen on a second panel, which is hinged to the first panel. The laptop is opened for use and closed for transport. Closing the laptop also protects the screen and keyboard during transportation. Laptops have both a power cable that can be plugged in and high-capacity batteries that can power the device, enhancing its portability. Once the battery charge is depleted, it will have to be recharged through a power outlet. In the interests of saving power, weight and space, laptop graphics cards are in many cases integrated into the CPU or chipset and use system RAM, resulting in reduced graphics performance when compared to an equivalent desktop machine. For this reason, desktop or gaming computers are usually preferred to laptop PCs for gaming purposes.

One of the drawbacks of laptops is that, due to the size and configuration of components, usually relatively little can be done to upgrade the overall computer from its original design or add components. Internal upgrades are either not manufacturer-recommended, can damage the laptop if done with poor care or knowledge, or in some cases impossible, making the desktop PC more modular and upgradable. Desktop PCs typically have a case that has extra empty space inside, where users can install new components. Some internal upgrades to laptops, such as memory and hard disk drive upgrades are often easily performed, while a display or keyboard upgrade is usually difficult or impossible. Just like desktops, laptops also have the same input and output ports for connecting to a wide variety of devices, including external displays, mice, cameras, storage devices and keyboards, which may be attached externally through USB ports and other less common ports such as external video. Laptops are also a little more expensive compared to desktops, as the miniaturized components for laptops themselves are expensive.

A subtype of notebooks, called subnotebook, has most of the features of a standard laptop computer, but with smaller physical dimensions. Subnotebooks are larger than hand-held computers, and usually run full versions of desktop or laptop operating systems. Ultra-Mobile PCs (UMPC) are usually considered subnotebooks, or more specifically, subnotebook tablet PCs, which are described below. Netbooks are sometimes considered to belong to this category, though they are sometimes separated into a category of their own (see below).

Desktop Replacement

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An Acer Aspire desktop replacement laptop

A desktop replacement computer (DTR) is a personal computer that provides the full capabilities of a desktop computer while remaining mobile. Such computers are often actually larger, bulkier laptops. Because of their increased size, this class of computers usually includes more powerful components and a larger display than generally found in smaller portable computers, and can have a relatively limited battery capacity or none at all in some cases. Some use a limited range of desktop components to provide better performance at the expense of battery life. Desktop replacement computers are sometimes called desknotes, as a portmanteau of words “desktop” and “notebook”, though the term is also applied to desktop replacement computers in general.

Netbook

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An HP netbook

Netbooks, also called mini notebooks or subnotebooks, are a subgroup of laptops acting as a category of small, lightweight and inexpensive laptop computers suited for general computing tasks and accessing web-based applications. They are often marketed as “companion devices”, with an intention to augment other ways in which a user can access computer resources. Walt Mossberg called them a “relatively new category of small, light, minimalist and cheap laptops.” By August 2009, CNET called netbooks “nothing more than smaller, cheaper notebooks.” Initially, the primary defining characteristic of netbooks was the lack of an optical disc drive, requiring it to be a separate external device. This has become less important as flash memory devices have gradually increased in capacity, replacing the writable optical disc (e.g. CD-RW, DVD-RW) as a transportable storage medium.

At their inception in late 2007—as smaller notebooks optimized for low weight and low cost—netbooks omitted key features (e.g., the optical drive), featured smaller screens and keyboards, and offered reduced specifications and computing power. Over the course of their evolution, netbooks have ranged in their screen sizes from below five inches to over 13 inches, with weights around ~1 kg (2–3 pounds). Often significantly less expensive than other laptops, by mid-2009 netbooks had been offered to users “free of charge”, with an extended service contract purchase of a cellular data plan. In the short period since their appearance, netbooks have grown in size and features, converging with new smaller and lighter notebooks. By mid-2009, CNET noted that “the specs are so similar that the average shopper would likely be confused as to why one is better than the other,” noting “the only conclusion is that there really is no distinction between the devices.”

Tablet

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HP Compaq tablet PC with rotating/removable keyboard

A tablet is a type of portable PC that de-emphasizes the use of traditional input devices (such as a mouse or keyboard) by using a touchscreen display, which can be controlled using either a stylus pen or finger. Some tablets may use a “hybrid” or “convertible” design, offering a keyboard that can either be removed as an attachment, or a screen that can be rotated and folded directly over top the keyboard. Some tablets may run a traditional PC operating system such as Windows or Linux; Microsoft attempted to enter the tablet market in 2002 with its Microsoft Tablet PC specifications, for tablets and convertible laptops running Windows XP. However, Microsoft’s early attempts were overshadowed by the release of Apple’s iPad; following in its footsteps, most tablets use slate designs and run mobile operating systems such as Android and iOS, giving them functionality similar to smartphones. In response, Microsoft built its Windows 8 operating system to better accommodate these new touch-oriented devices. Many tablet computers have USB ports, to which a keyboard or mouse can be connected.

Ultra-mobile PC

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A Samsung Q1 ultra-mobile PC

The ultra-mobile PC (UMP) is a specification for small-configuration tablet PCs. It was developed as a joint development exercise by Microsoft, Intel and Samsung, among others. Current UMPCs typically feature the Windows XP, Windows Vista, Windows 7, or Linux operating system, and low-voltage Intel Atom or VIA C7-M processors.

Pocket PC

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An O2 pocket PC

A pocket PC is a hardware specification for a handheld-sized computer (personal digital assistant, PDA) that runs the Microsoft Windows Mobile operating system. It may have the capability to run an alternative operating system like NetBSD or Linux. Pocket PCs have many of the capabilities of desktop PCs. Numerous applications are available for handhelds adhering to the Microsoft Pocket PC specification, many of which are freeware. Some of these devices also include mobile phone features, actually representing a smartphone. Microsoft-compliant Pocket PCs can also be used with many other add-ons like GPS receivers, barcode readers, RFID readers and cameras. In 2007, with the release of Windows Mobile 6, Microsoft dropped the name Pocket PC in favor of a new naming scheme: devices without an integrated phone are called Windows Mobile Classic instead of Pocket PC, while devices with an integrated phone and a touch screen are called Windows Mobile Professional.

Hardware


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An exploded view of a personal computer and peripherals (some of which are optional):

  1. Scanner
  2. CPU (Microprocessor)
  3. Memory (RAM)
  4. Expansion cards (graphics cards, etc.)
  5. Power supply
  6. Optical disc drive
  7. Storage (Hard disk or SSD)
  8. Motherboard
  9. Speakers
  10. Monitor
  11. System software
  12. Application software
  13. Keyboard
  14. Mouse
  15. External hard disk
  16. Printer

Computer hardware is a comprehensive term for all physical parts of a computer, as distinguished from the data it contains or operates on, and the software that provides instructions for the hardware to accomplish tasks. The boundary between hardware and software has become blurred, with the existence of firmware that is software “built into” the hardware. For example, a 2010-era LCD display screen contains a small computer inside. Mass-market consumer computers use highly standardized components and so are simple for an end user to assemble into a working system. Most 2010s-era computers only require users to plug in the power supply, monitor, and other cables. A typical desktop computer consists of a computer case (or “tower”), a metal chassis that holds the power supply, motherboard, hard disk drive, and often an optical disc drive. Most towers have empty space where users can add additional components. External devices such as a computer monitor or visual display unit, keyboard, and a pointing device (mouse) are usually found in a personal computer.

The motherboard connects all processor, memory and peripheral devices together. The RAM, graphics card and processor are in most cases mounted directly onto the motherboard. The central processing unit (microprocessor chip) plugs into a CPU socket, while the memory modules plug into corresponding memory sockets. Some motherboards have the video display adapter, sound and other peripherals integrated onto the motherboard, while others use expansion slots for graphics cards, network cards, or other I/O devices. The graphics card or sound card may employ a break out box to keep the analog parts away from the electromagnetic radiation inside the computer case. Disk drives, which provide mass storage, are connected to the motherboard with one cable, and to the power supply through another cable. Usually, disk drives are mounted in the same case as the motherboard; expansion chassis are also made for additional disk storage.

For large amounts of data, a tape drive can be used or extra hard disks can be put together in an external case. The keyboard and the mouse are external devices plugged into the computer through connectors on an I/O panel on the back of the computer case. The monitor is also connected to the input/output (I/O) panel, either through an onboard port on the motherboard, or a port on the graphics card. Capabilities of the personal computers hardware can sometimes be extended by the addition of expansion cards connected via an expansion bus. Standard peripheral buses often used for adding expansion cards in personal computers include PCI, PCI Express (PCIe), and AGP (a high-speed PCI bus dedicated to graphics adapters, found in older computers). Most modern personal computers have multiple physical PCI Express expansion slots, with some of the having PCI slots as well.

Computer Case

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An empty ATX case lying on its side

A computer case is an enclosure that contains the main components of a computer. They are usually constructed from steel or aluminum combined with plastic, although other materials such as wood and tempered glass have been used for specialized units. Cases are available in different sizes and shapes; the size and shape of a computer case are usually determined by the configuration of the motherboard that it is designed to accommodate since this is the largest and most central component of most computers. The most popular style for desktop computers is ATX, although microATX and similar layouts became very popular for a variety of uses. Companies like Shuttle Inc. and AOpen have popularized small cases, for which FlexATX is the most common motherboard size. In the 1990s, desktop computer cases were larger and taller than 2010-era computer cases.

Power Supply Snit (PSU)

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Computer power supply unit with top cover removed

The power supply unit (PSU) converts general-purpose mains AC electricity to direct current (DC) for the other components of the computer. The rated output capacity of a PSU should usually be about 40% greater than the calculated system power consumption needs to be obtained by adding up all the system components. This protects against overloading the supply, and guards against performance degradation. Power supply capacities range from 250 to 2000 watts for desktop computers.

Processor (Central processing unit)

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AMD Athlon 64 X2 CPU

The central processing unit (CPU) is a part of a computer that executes instructions of a software program. In newer PCs, the CPU contains over a million transistors in one integrated circuit chip called the microprocessor. In most cases, the processor plugs directly into the motherboard. The processor chip may have a heat sink and a fan attached for cooling. IBM PC compatible computers use an x86-compatible microprocessor, manufactured by Intel, AMD, VIA Technologies or Transmeta. Apple Macintosh computers were initially built with the Motorola 680×0 family of processors, then switched to the PowerPC series; in 2006, they switched to x86-compatible processors made by Intel.

Motherboard

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A motherboard without processor, memory and expansion cards, cables

The motherboard, also referred to as system board or main board, is the primary circuit board within a personal computer, and other major system components plug directly into it or via a cable. A motherboard contains a microprocessor, the CPU supporting circuitry (mostly integrated circuits) that provide the interface between memory and input/output peripheral circuits, main memory, and facilities for initial setup of the computer immediately after power-on (often called boot firmware or, in IBM PC compatible computers, a BIOS or UEFI). In many portable and embedded personal computers, the motherboard houses nearly all of the PC’s core components. Often a motherboard will also contain one or more peripheral buses and physical connectors for expansion purposes. Sometimes a secondary daughter board is connected to the motherboard to provide further expandability or to satisfy space constraints.

Main Memory (Primary Storage)

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1 GB DDR SDRAM PC-3200 module

A PC’s main memory is a fast primary storage device that is directly accessible by the CPU, and is used to store the currently executing program and immediately needed data. PCs use semiconductor random-access memory (RAM) of various kinds such as DRAM, SDRAM or SRAM as their primary storage. Which exact kind is used depends on cost/performance issues at any particular time. Main memory is much faster than mass storage devices like hard disk drives or optical discs, but is usually volatile, meaning that it does not retain its contents (instructions or data) in the absence of power, and is much more expensive for a given capacity than is most mass storage. As a result, main memory is generally not suitable for long-term or archival data storage.

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Storage Drive (Hard Disk Drive/Solid State Drive)

A Western Digital 250 GB hard disk driveMass storage devices store programs and data even when the power is off; they do require power to perform read and write functions during usage. Although flash memory has dropped in cost, the prevailing form of mass storage in personal computers is still the hard disk drive. If the mass storage controller provides additional ports for expandability, a PC may also be upgraded by the addition of extra hard disk or optical disc drives. For example, BD-ROMs, DVD-RWs, and various optical disc recorders may all be added by the user to certain PCs. Standard internal storage device connection interfaces are PATA, SATA and SCSI. Solid state drives (SSDs) are a much faster replacement for traditional mechanical hard disk drives but are also more expensive in terms of cost per gigabyte. Solid state drives connect using several connectors, including SATA, M.2, and U.2. Some models use the NVMe protocol, which have vastly improved performance over standard hard disk drives and older SSDs that use the older AHCI protocol.

Visual Display Unit (VDU)

A visual display unit, computer monitor or just display, is a piece of electrical equipment, usually separate from the computer case, which displays visual images without producing a permanent computer record. A display device was usually either a CRT in the 1980s, but by the 2000s, flat panel displays such as a TFT LCD had largely replaced the bulkier, heavier CRT screens. Multi-monitor setups are quite common in the 2010s, as they enable a user to display multiple programs at the same time (e.g., an email inbox and a word processing program). The display unit houses an electronic circuitry that generates its picture from signals received from the computer. Within the computer, either integral to the motherboard or plugged into it as an expansion card, there is pre-processing circuitry to convert the microprocessor’s output data to a format compatible with the display unit’s circuitry. The images from computer monitors originally contained only text, but as graphical user interfaces emerged and became common, they began to display more images and multimedia content. The term “monitor” is also used, particularly by technicians in broadcasting television, where a picture of the broadcast data is displayed to a highly standardized reference monitor for confidence checking purposes.

Video Card

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An ATI Radeon video card

The video card—otherwise called a graphics card, graphics adapter or video adapter—processes the graphics output from the motherboard and transmits it to the display. It is an essential part of modern multimedia-enriched computing. Graphics circuitry may be integrated with the motherboard, or may be on cards istalled in PCI, AGP, or PCI Express slots. When the IBM PC was introduced, most existing business-oriented personal computers used text-only display adapters and had no graphics capability. Home computers at that time had graphics compatible with television signals, but with low resolution owing to the limited memory available to the eight-bit processors available at the time.

Keyboard (Computer Keyboard)

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A “Model M” IBM computer keyboard from the early 1980s. Commonly called the “Clicky Keyboard” due to its buckling spring key spring design, which gives the keyboard its iconic ‘Click’ sound with each keystroke.

A keyboard is an arrangement of buttons that each correspond to a function, letter, or number. They are the primary devices used for inputting text. In most cases, they contain an array of keys specifically organized with the corresponding letters, numbers, and functions printed or engraved on the button. They are generally designed around an operators language, and many different versions for different languages exist. In English, the most common layout is the QWERTY layout, which was originally used in typewriters. They have evolved over time, and have been modified for use in computers with the addition of function keys, number keys, arrow keys, and keys specific to an operating system. Often, specific functions can be achieved by pressing multiple keys at once or in succession, such as inputting characters with accents or opening a task manager. Programs use keyboard shortcuts very differently and all use different keyboard shortcuts for different program specific operations, such as refreshing a web page in a web browser or selecting all text in a word processor. In addition to the alphabetic keys found on a typewriter, computer keyboards typically have a numeric keyboard and a row of function keys and special keys, such as CTRL, ALT, DEL and Esc

Many keyboards include LED lights under the keys that increase the visibility of the letters or symbols in dark environments.

Mouse (Computer Mouse)

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A selection of computer mice built between 1986 and 2007

A computer mouse is a small handheld device that users hold and slide across a flat surface, pointing at various elements of a graphical user interface with an on-screen cursor, and selecting and moving objects using the mouse buttons. Mice may be plugged into a dedicated mouse socket, or a USB port, or, may be connected wirelessly. Mice include one or more buttons to allow a user to signal the computer to carry out some operation, such as selecting an item from a menu of choices on the screen. A mouse may have a scroll wheel, to allow users to move the displayed image. The scroll wheel can also be pressed down, and used as a third button. Some mouse wheels may be tilted from side to side to allow sideways scrolling. Different programs make use of these functions differently, and may scroll horizontally by default with the scroll wheel, open different menus with different buttons, etc. These functions may be also user-defined through software utilities. Mechanical mice used a ball, which drove pulse generators to detect movement along “north-south” or “east-west” axies. Optical mice use a special mouse pad with a printed grid to allow detection of motion, or else use an imaging chip that allows detection of motion on almost any opaque surface.

Other Components

Computer_Workstation_Variables

A proper ergonomic design of a personal computer workplace is necessary to prevent repetitive strain injuries, which can develop over time and can lead to long-term disability.

All computers require either fixed or removable storage for their operating system, programs and user-generated material. Early home computers used compact audio cassettes for file storage; these were at the time a very low cost storage solution, but were displaced by floppy disk drives when manufacturing costs dropped, by the mid-1980s. Initially, the 5.25-inch and 3.5-inch floppy drives were the principal forms of removable storage for backup of user files and distribution of software. As memory sizes increased, the capacity of the floppy did not keep pace; the Zip drive and other higher-capacity removable media were introduced but never became as prevalent as the floppy drive. By the late 1990s, the optical drive, in CD and later DVD and Blu-ray Disc forms, became the main method for software distribution, and writeable media provided means for data backup and file interchange. As a result, floppy drives became uncommon in desktop personal computers since about 2000, and were dropped from many laptop systems even earlier.

A second generation of tape recorders was provided when videocassette recorders were pressed into service as backup media for larger disk drives. All these systems were less reliable and slower than purpose-built magnetic tape drives. Such tape drives were uncommon in consumer-type personal computers but were a necessity in business or industrial use. Interchange of data such as photographs from digital cameras is greatly expedited by installation of a card reader, which is often compatible with several forms of flash memory devices. It is usually faster and more convenient to move large amounts of data by removing the card from the mobile device, instead of communicating with the mobile device through a USB interface.

A USB flash drive performs much of the data transfer and backup functions formerly done with floppy drives, Zip disks and other devices. Mainstream operating systems for personal computers provide built-in support for USB flash drives, allowing interchange even between computers with different processors and operating systems. The compact size and lack of moving parts or dirt-sensitive media, combined with low cost and high capacity, have made USB flash drives a popular and useful accessory for any personal computer user.

The operating system can be located on any storage, but is typically installed on a hard disk or solid-state drive. A Live CD represents the concept of running an operating system directly from a CD. While this is slow compared to storing the operating system on a hard disk drive, it is typically used for installation of operating systems, demonstrations, system recovery, or other special purposes. Large flash memory is currently more expensive than hard disk drives of similar size (as of mid-2014) but are starting to appear in laptop computers because of their low weight, small size and low power requirements. Computer communications involve internal modem cards, modems, network adapter cards, and routers. Common peripherals and adapter cards include headsets, joysticks, microphones, printers, scanners, sound adapter cards (as a separate card rather than located on the motherboard), speakers and webcams.

Software (Computer Software)


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A screenshot of the OpenOffice.org Writer software

Computer software is any kind of computer program, procedure, or documentation that performs some task on a computer system. The term includes application software such as word processors that perform productive tasks for users, system software such as operating systems that interface with computer hardware to provide the necessary services for application software, and middleware that controls and co-ordinates distributed systems.

Software applications are common for word processing, Internet browsing, Internet faxing, e-mail and other digital messaging, multimedia playback, playing of computer game, and computer programming. The user may have significant knowledge of the operating environment and application programs, but is not necessarily interested in programming nor even able to write programs for the computer. Therefore, most software written primarily for personal computers tends to be designed with simplicity of use, or “user-friendliness” in mind. However, the software industry continuously provide a wide range of new products for use in personal computers, targeted at both the expert and the non-expert user.

Operating System (Usage Share of Operating Systems)

An operating system (OS) manages computer resources and provides programmers with an interface used to access those resources. An operating system processes system data and user input, and responds by allocating and managing tasks and internal system resources as a service to users and programs of the system. An operating system performs basic tasks such as controlling and allocating memory, prioritizing system requests, controlling input and output devices, facilitating computer networking, and managing files.

Common contemporary desktop operating systems are Microsoft Windows, macOS, Linux, Solaris and FreeBSD. Windows, macOS, and Linux all have server and personal variants. With the exception of Microsoft Windows, the designs of each of them were inspired by or directly inherited from the Unix operating system, which was developed at Bell Labs beginning in the late 1960s and spawned the development of numerous free and proprietary operating systems.

Microsoft Windows

Microsoft Windows is the collective brand name of several operating systems made by Microsoft which, as of 2015, are installed on PCs built by HP, Dell and Lenovo, the three remaining high volume manufacturers. Microsoft first introduced an operating environment named Windows in November 1985, as an add-on to MS-DOS and in response to the growing interest in graphical user interfaces (GUIs) generated by Apple’s 1984 introduction of the Macintosh. As of January 2017, the most recent client and server version of Windows are Windows 10 and Windows Server 2016.

macOS

macOS (formerly OS X) is a line of operating systems developed, marketed and sold by Apple Inc. macOS is the successor to the original Mac OS, which had been Apple’s primary operating system since 1984. macOS is a Unix-based graphical operating system, and Snow Leopard, Leopard, Lion, Mountain Lion, Mavericks, Yosemite, El Capitan and Sierra are its version codenames. The most recent version of macOS is codenamed macOS High Sierra.

Linux

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A Linux distribution running KDE Plasma Workspaces 4

Linux is a family of Unix-like computer operating systems. Linux is one of the most prominent examples of free software and open source development: typically all underlying source code can be freely modified, used, and redistributed by anyone.The name “Linux” refers to the Linux kernel, started in 1991 by Linus Torvalds. The system’s utilities and libraries usually come from the GNU operating system, announced in 1983 by Richard Stallman. The GNU contribution is the basis for the alternative name GNU/Linux.

Known for its use in servers, with the LAMP application stack as one of prominent examples, Linux is supported by corporations such as Dell, Hewlett-Packard, IBM, Novell, Oracle Corporation, Red Hat, Canonical Ltd. and Sun Microsystems. It is used as an operating system for a wide variety of computer hardware, including desktop computers, netbooks, supercomputers, video game systems such as the Steam Machine or PlayStation 3 (until this option was removed remotely by Sony in 2010), several arcade games, and embedded devices such as mobile phones, portable media players, routers, and stage lighting systems.

Applications

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A screenshot of GIMP, which is a raster graphics editor.

Generally, a computer user uses application software to carry out a specific task. System software supports applications and provides common services such as memory management, network connectivity and device drivers, all of which may be used by applications but are not directly of interest to the end user. A simplified analogy in the world of hardware would be the relationship of an electric light bulb (an application) to an electric power generation plant (a system): the power plant merely generates electricity, not itself of any real use until harnessed to an application like the electric light that performs a service that benefits the user.

Typical examples of software applications are word processors, spreadsheets, and media players. Multiple applications bundled together as a package are sometimes referred to as an application suite. Microsoft Office and LibreOffice, which bundle together a word processor, a spreadsheet, and several other discrete applications, are typical examples. The separate applications in a suite usually have a user interface that has some commonality making it easier for the user to learn and use each application. Often, they may have some capability to interact with each other in ways beneficial to the user; for example, a spreadsheet might be able to be embedded in a word processor document even though it had been created in the separate spreadsheet application.

End-user development tailors systems to meet the user’s specific needs. User-written software include spreadsheet templates, word processor macros, scientific simulations, graphics and animation scripts; even email filters are a kind of user software. Users create this software themselves and often overlook how important it is.

Gaming

PC gaming is popular among the high-end PC market. According to an April 2014 market analysis, Gaming platforms like Steam (software), Uplay, Origin, and GOG.com (as well as competitive eSports titles like League of Legends) are largely responsible for PC systems overtaking console revenue in 2013.

Sales


Market share

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Personal computers worldwide in million distinguished by developed and developing world

In 2001, 125 million personal computers were shipped in comparison to 48,000 in 1977. More than 500 million personal computers were in use in 2002 and one billion personal computers had been sold worldwide from the mid-1970s up to this time. Of the latter figure, 75% were professional or work related, while the rest were sold for personal or home use. About 81.5% of personal computers shipped had been desktop computers, 16.4% laptops and 2.1% servers. The United States had received 38.8% (394 million) of the computers shipped, Europe 25% and 11.7% had gone to the Asia-Pacific region, the fastest-growing market as of 2002. The second billion was expected to be sold by 2008. Almost half of all households in Western Europe had a personal computer and a computer could be found in 40% of homes in United Kingdom, compared with only 13% in 1985.

The global personal computer shipments were 350.9 million units in 2010, 308.3 million units in 2009 and 302.2 million units in 2008. The shipments were 264 million units in the year 2007, according to iSuppli, up 11.2% from 239 million in 2006. In 2004, the global shipments were 183 million units, an 11.6% increase over 2003. In 2003, 152.6 million computers were shipped, at an estimated value of $175 billion. In 2002, 136.7 million PCs were shipped, at an estimated value of $175 billion. In 2000, 140.2 million personal computers were shipped, at an estimated value of $226 billion. Worldwide shipments of personal computers surpassed the 100-million mark in 1999, growing to 113.5 million units from 93.3 million units in 1998. In 1999, Asia had 14.1 million units shipped.

As of June 2008, the number of personal computers in use worldwide hit one billion, while another billion is expected to be reached by 2014. Mature markets like the United States, Western Europe and Japan accounted for 58% of the worldwide installed PCs. The emerging markets were expected to double their installed PCs by 2012 and to take 70% of the second billion PCs. About 180 million computers (16% of the existing installed base) were expected to be replaced and 35 million to be dumped into landfill in 2008. The whole installed base grew 12% annually.

Based on International Data Corporation (IDC) data for Q2 2011, for the first time China surpassed US in PC shipments by 18.5 million and 17.7 million respectively. This trend reflects the rising of emerging markets as well as the relative stagnation of mature regions.

In the developed world, there has been a vendor tradition to keep adding functions to maintain high prices of personal computers. However, since the introduction of the One Laptop per Child foundation and its low-cost XO-1 laptop, the computing industry started to pursue the price too. Although introduced only one year earlier, there were 14 million netbooks sold in 2008. Besides the regular computer manufacturers, companies making especially rugged versions of computers have sprung up, offering alternatives for people operating their machines in extreme weather or environments.

Opera Snapshot_2017-12-27_230443_en.wikipedia.org

In 2011, Deloitte consulting firm predicted that, smartphones and tablet computers as computing devices would surpass the PCs sales (as has happened since 2012). As of 2013, worldwide sales of PCs had begun to fall as many consumers moved to tablets and smartphones for gifts and personal use. Sales of 90.3 million units in the 4th quarter of 2012 represented a 4.9% decline from sales in the 4th quarter of 2011. Global PC sales fell sharply in the first quarter of 2013, according to IDC data. The 14% year-over-year decline was the largest on record since the firm began tracking in 1994, and double what analysts had been expecting. The decline of Q2 2013 PC shipments marked the fifth straight quarter of falling sales. “This is horrific news for PCs,” remarked an analyst. “It’s all about mobile computing now. We have definitely reached the tipping point.” Data from Gartner Inc. showed a similar decline for the same time period. China’s Lenovo Group bucked the general trend as strong sales to first time buyers in the developing world allowed the company’s sales to stay flat overall. Windows 8, which was designed to look similar to tablet/smartphone software, was cited as a contributing factor in the decline of new PC sales. “Unfortunately, it seems clear that the Windows 8 launch not only didn’t provide a positive boost to the PC market, but appears to have slowed the market,” said IDC Vice President Bob O’Donnell.

In August 2013, Credit Suisse published research findings that attributed around 75% of the operating profit share of the PC industry to Microsoft (operating system) and Intel (semiconductors). According to IDC, in 2013 PC shipments dropped by 9.8% as the greatest drop-ever in line with consumers trends to use mobile devices.

Average Selling Price

Selling prices of personal computers steadily declined due to lower costs of production and manufacture, while the capabilities of computers increased. In 1975, an Altair kit sold for only around US$400, but required customers to solder components into circuit boards; peripherals required to interact with the system in alphanumeric form instead of blinking lights would add another $2,000, and the resultant system was only of use to hobbyists.

At their introduction in 1981, the US$1,795 price of the Osborne 1 and its competitor Kaypro was considered an attractive price point; these systems had text-only displays and only floppy disks for storage. By 1982, Michael Dell observed that a personal computer system selling at retail for about $3,000 US was made of components that cost the dealer about $600; typical gross margin on a computer unit was around $1,000. The total value of personal computer purchases in the US in 1983 was about $4 billion, comparable to total sales of pet food. By late 1998, the average selling price of personal computer systems in the United States had dropped below $1,000.

For Microsoft Windows systems, the average selling price (ASP) showed a decline in 2008/2009, possibly due to low-cost netbooks, drawing $569 for desktop computers and $689 for laptops at U.S. retail in August 2008. In 2009, ASP had further fallen to $533 for desktops and to $602 for notebooks by January and to $540 and $560 in February. According to research firm NPD, the average selling price of all Windows portable PCs has fallen from $659 in October 2008 to $519 in October 2009.

Use


Toxicity

Personal computing can fulfill individual needs, but that fulfillment may come at a cost to society as well, especially in terms of environmental impact, although this impact differs between desktop computers and laptops.

Electronic Waste Regulation

Personal computers have become a large contributor to the 50 million tons of discarded electronic waste that is being generated annually, according to the United Nations Environment Programme. To address the electronic waste issue affecting developing countries and the environment, extended producer responsibility (EPR) acts have been implemented in various countries and states. Organizations, such as the Silicon Valley Toxics Coalition, Basel Action Network, Toxics Link India, SCOPE, and Greenpeace have contributed to these efforts. In the absence of comprehensive national legislation or regulation on the export and import of electronic waste, the Silicon Valley Toxics Coalition and BAN (Basel Action Network) teamed up with 32 electronic recyclers in the US and Canada to create an e-steward program for the orderly disposal of manufacturers and customers electronic waste. The Silicon Valley Toxics Coalition founded the Electronics TakeBack Coalition, a coalition that advocates for the production of environmentally friendly products. The TakeBack Coalition works with policy makers, recyclers, and smart businesses to get manufacturers to take full responsibility of their products. There are organizations opposing EPR regulation, such as the Reason Foundation. They see flaws in two principal tenets of EPR: First EPR relies on the idea that if the manufacturers have to pay for environmental harm, they will adapt their practices. Second EPR assumes the current design practices are environmentally inefficient. The Reason Foundation claims that manufacturers naturally move toward reduced material and energy use.

CCTV | Televisi Sirkuit Tertutup

Dari Wikipedia bahasa Indonesia, ensiklopedia bebas

Televisi Sirkuit Tertutup (bahasa Inggris: Closed Circuit Television (CCTV) yang berarti menggunakan sinyal yang bersifat tertutup, tidak seperti televisi biasa yang merupakan sinyal siaran.

Daftar isi
1 Penggunaan
2 Perlengkapan
2.1 Kamera
2.2 DVR

Penggunaan


Pada umumnya CCTV digunakan sebagai pelengkap keamanan dan banyak dipakai di dalam industri-industri seperti militer, bandara, toko, kantor, pabrik dan bahkan sekarang perumahan pun telah banyak yang menggunakan teknologi ini.

Perlengkapan


CCTV sebagai satu kesatuan system mepunyai beberapa perlengkapan yaitu:

  • Kamera
  • DVR (Digital Video Recorder)

Kamera

Kamera CCTV ini berfungsi sebagai alat pengambil gambar, ada beberapa tipe kamera yang membedakan dari segi kualitas, penggunaan dan fungsinya 2 hal yang paling utama adalah, camera CCTV analog dan Camera CCTV Network dimana kamera analog menggunakan satu solid kable untuk setiap kamera yang berarti, setiap kamera akan harus terhubung ke DVR atau system secara langsung sedangkan Camera Network atau yang biasa di sebut IP Kamera, bisa menggunakan jejaring yang berarti akan menghemat dari segi installasi karena network bersifat pararel dan bercabang tidak memerlukan satu kabel khusus untuk tiap kamera dalam pengaksesannya.

DVR

DVR (Digital Video Recorder). ini adalah system yang digunakan oleh kamera CCTV untuk merekam semua gambar yang di kirim oleh kamera dalam sistem ini banyak fitur yang bisa kita manfaatkan untuk pelengkap keamanan, salah satunya adalah merekam semua kejadian dan hasil rekaman ini yang biasa digunakan di dalam peradilan untuk membuktikan suatu kejadian dalam sebuah sistem kamera, jumlah dan kualitas rekaman akan ditentukan oleh DVR ini.

Personal Computer | Komputer Pribadi

Dari Wikipedia bahasa Indonesia, ensiklopedia bebas

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Menara sebuah PC. (Atas-Bawah): Pemutar/perekam DVD (ditandai dengan huruf D), Pemutar/perekam CD (ditandai dengan huruf E) dan drive floppy-disk 3.5 inci (di bagian tengah menara). Hard drive berkapasitas 160 gigabyte ada di dalam menara.

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PC dan perlengkapannya. (Kiri-Kanan): printer ink jet, monitor CRT, modem kabel jalur lebar (broadband) untuk internet, scanner flat bed. Kotak CPU ada di sebelah kanan bawah. Menggunakan mouse dan keyboard tanpa kabel.

Istilah komputer pribadi atau PC (Bahasa Inggris:Personal Computer)mempunyai beberapa arti:

  • Istilah umum yang merujuk pada komputer yang dapat digunakan dan diperoleh orang dengan mudah.
  • Istilah umum yang merujuk kepada mikrokomputer yang sesuai dengan spesifikasi IBM.
  • Komputer pribadi yang pertama kali dikeluarkan oleh IBM dan secara tidak langsung mencetuskan penggunaan istilah PC (Personal Computer) – lihat PC IBM.

Generasi mikrokomputer yang pertama hanya dijual dalam jumlah kecil kepada orang yang mampu membeli(membuat dan merakit sendiri), dan mengoperasikannya, yaitu: para insinyur dan penggemar bidang elektronika. Mikrokomputer generasi kedua lebih dikenal sebagai komputer rumah (home computer).

Daftar isi
1 Sejarah
2 Perangkat Pada Komputer
3 Komponen Perangkat Keras (Hardware)
4 Arsitektur dan kartu tambahan

Sejarah


Istilah komputer pribadi pertama kali digunakan di majalah New Scientist pada tahun 1964 dalam artikel berseri yang berjudul “The World in 1984” (Dunia pada Tahun 1984). Dalam “The Banishment of Paper Work” (Hilangnya Pekerjaan Tulis-Menulis), Arthur L. Samuel dari Pusat Penelitian Watson (Watson Research Center) nya IBM menulis, “Meskipun mungkin saja kita dapat memperoleh pendidikan di rumah melalui PC orang tersebut sendiri, sifat asli manusia tetap tak akan berubah.”

Generasi pertama mikrokomputer mulai bermunculan pada tahun 70-an. Namun begitu, ia tidak berkemampuan tinggi, dan kurang cakap dibandingkan dengan komputer bisnis (Business Computer) pada waktu itu, sehingga hanya digunakan oleh peminat komputer, atau hanya untuk permainan elektronik serta penggunaan bulletin board system. Seperti pada komputer modern di era chip silikon PC menggunakan mikrokomputer sebagai Unit Pemroses Pusat . Mikroprosesor yang pertama dipakai pada PC IBM adalah Intel4004 yang dikeluarkan pada 15 November 1971.

Mikrokomputer menjadi alat perniagaan ketika program spreadsheet VisiCalc diluncurkan untuk mesin Apple II, dan kemudian untuk kelompok 8-bit Atari, Commodore PET, dan PC IBM yang menjadi program aplikasi terpopuler. Pada sekitar tahun 1980an, harga komputer pribadi yang rendah menjadi sebab utama kepopularannya untuk kegunaan di rumah serta bisnis. Pada tahun 1982, majalah Time memberikan “Komputer Pribadi” gelar “Man of the Year”.

Perangkat Pada Komputer


  • Perangkat Keras (Hardware)
  • Perangkat Lunak (Software)

Komponen Perangkat Keras (Hardware)


  • Unit Pemroses (Processing Unit)

Central Processing Unit (CPU). Umumnya terdiri atas:

  1. Motherboard
  2. VGA Card
  3. Lan Card
  4. RAM
  5. Hardisk
  6. Floppy Disk
  7. CD Room Drive.dll

Perangkat Masukan (Input)

  • Mis. Mouse, Keyboard, Microphone, Scanner

Perangkat Pengeluaran (Output)

  • Mis. Printer, Speaker, Monitor

Arsitektur dan kartu tambahan


Kebanyakan PC menggunakan arsitektur peranti keras (hardware) yang kompatibel dengan PC IBM, contohnya prosesor yang kompatibel dengan x86 buatan Intel seperti produk dari AMD dan Cyrix. Kemampuan peranti keras PC biasanya dapat dikembangkan dengan penambahan kartu tambahan (expansion card).

Komputer pribadi dapat dibagi dalam beberapa jenis:

  • Komputer Desktop
  • Notebook atau Laptop
  • PDA
  • Komputer yang bisa dipakaikan ke badan (wearable computer)

Tipe PC dan PW (personal workstation) lainnya:

  • Apple Macintosh
  • Acorn Archimedes & RiscPC
  • Workstation NeXT
  • BeBox
  • Sun
  • Workstation-workstation SGI seperti SGI Indigo dan SGI Onyx
  • NEC PC-9800 (Ada di Jepang selama beberapa saat)