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150-100 BCE
Antikythera mechanism http://www.antikythera-mechanism.gr/ Thought to have assisted in astronomical calculations, it is possibly the earliest surviving example of a complex mechanical computer.
A fragment of the Antikythera mechanism.
http://commons.wikimedia.org/wiki/Image:NAMA_Machine_d%27Anticyth%C3%A8re_1.jpg
Creative CommonsAttribution 2.5 License
http://commons.wikimedia.org/wiki/User:Marsyas |
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1834
Analytical Engine. Charles Babbage conceives his plans for a mechanical analytical engine, the first design for a general purpose computer.
A partial construction of the analytical engine.
http://commons.wikimedia.org/wiki/Image:Analytical_Engine_%282290032530%29.jpg
Creative Commons Attribution 2.0
Marcin Wichary
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1843
First Computer Programmer. Ada Lovelace is credited with writing the world's first computer program, written for Charles Babbage's (unrealised) analytical engine.
Portrait of Ada Lovelace.
http://commons.wikimedia.org/wiki/Image:NAMA_Machine_d%27Anticyth%C3%A8re_1.jpg
Creative CommonsAttribution 2.5 License
http://commons.wikimedia.org/wiki/User:Marsyas |
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1940s
First electronic computers. Development of the first electronic computers such as the Colossus and EDSAC computers, whose calculation speeds were far greater than any previous mechanical computer could achieve.
Rebuild of one of the colossus computers.
http://commons.wikimedia.org/wiki/Image:Colossus-rebuild.jpg
GFDL ( GNU Free Documentation license)
Tom Yates |
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1964
IBM System/360 IBM created a compatible series of mainframes with dedicated hardware to run operating systems. They also offered backward compatibility to older models via emulation.
An IBM System 360/20 computer.
http://en.wikipedia.org/wiki/Image:DM_IBM_S360.jpg
Creative Commons Attribution 2.5
Ben Franske |
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1965
First commercial mini computer. The first commercially successful minicomputer (an early form of server), the DEC PDP-8, was developed by the Digital Equipment Corporation.
DEC PDP-8 minicomputer
http://commons.wikimedia.org/wiki/Image:DEC_PDP_8e.jpg
GNU Free Documentation license, Version 1.2 or later
http://commons.wikimedia.org/wiki/User:Stahlkocher |
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1971
Intel 4004 micro controller. Intel releases the 4004, the world's first commercial microprocessor, the forerunner of modern CPUs.
Intel 4004 micro controller.
http://en.wikipedia.org/wiki/Image:Intel_4004.jpg
GNU Free Documentation license, Version 1.2 or later
http://it.wikipedia.org/wiki/User:LucaDetomi |
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1981
First IBM personal computer The first IBM compatible personal computer is sold (PC). There are now over 1 billion personal computers world wide.
IBM personal computer model 5150
http://commons.wikimedia.org/wiki/Image:IBM_PC_5150.jpg
GNU Free Documentation license, Version 1.2 or later
http://commons.wikimedia.org/wiki/User:Boffy_b |
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1988
P.S. was founded. P.S., a specialist IT recruitment agency, was founded by Tony Parker and Christopher Shaw. Over the years the company has gone from strength to strength and now provides permanent and contract recruitment, along with managed IT services.
P.S. Logo Copyright P.S. Computer Services Ltd 2008 |
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1991
World Wide Web. While working at CERN Tim Berners-Lee publicly launches the first web site and a summary of the world wide web [1]. Three years later P.S. launches its first website.
[1]http://groups.google.com/group/alt.hypertext/msg/395f282a67a1916c
The first web server (at CERN). Note the label warning people not to turn it off.
http://en.wikipedia.org/wiki/Image:First_Web_Server.jpg
GNU Free Documentation license, Version 1.2 or later
http://en.wikipedia.org/wiki/user:Coolcaesar
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