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Thursday, February 18, 2010

{M:H:O} A Brief History of the Computer




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A Brief History of the Computer

ENIAC, 1946
Regarded as the first general purpose electronic computer, the Electronic Numerical Integrator and Computer (ENIAC) was initially commissioned for the use in World War II, but not completed until one year after the war had ended . Installed at the University of Pennsylvania, its 40 separate eight-foot-high racks and 18,000 tubes were intended to help calculate ballistic trajectories.

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SAGE, 1954
A gigantic computerized air defense system, SAGE (Semi-Automatic Ground Environment) was designed to help the Air Force track radar data in real time. Equipped with technical advances such as modems and graphical displays, the machine weighed 300 tons and occupied one floor of a concrete blockhouse.

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NEAC 2203, 1960
Manufactured by the Nippon Electric Company (NEC), the drum-based machine was one of the earliest transistorized Japanese computers. It was used for business, scientific and engineering applications.
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IBM System/360, 1964
Part of a family of interchangeable computers, the IBM System/360 mainframe was the first to cover a complete range of applications, from small to large, from commercial to scientific. Users were able to enlarge or shrink their setup without having to make headache-inducing software upgrades as well. Higher-end System/360 models had roles in NASA's Apollo missions as well as air traffic control systems.

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CDC 6600, 1964
For a time the fastest machine in the world, Control Data Corporation's 6600 machine was designed by noted computer architect Seymour Cray. It retained its speed crown until 1969, when Cray designed his next supercomputer.

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DEC PDP-8, 1965
The first successful commercial minicomputer, the PDP-8, made by the Digital Equipment Corporation, sold more than 50,000 units upon its release, the most of any computer up to that time. Years before Apple and Gnu/Linux offered alternatives to the dominant IBM/Microsoft paradigms, DEC proposed its own vision, by encouraging users to educate themselves and take part in the evolution of the line.

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Interface Message Processor, 1969
Conceived at the height of the Cold War, when the U.S. government sought a way to keep its network of computers alive in case certain nodes were destroyed in a nuclear attack or other hostile act, the IMP featured the first generation of gateways, which are today known as routers. As such, IMP performed a critical task in the development of the ARPANET (Advanced Research Projects Agency Network), the world's first operational packet switching network, and the predecessor of the contemporary global Internet.

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Kenbak-1, 1971
Often considered the world's first "personal computer" the Kenbak was touted as an easy-to-use educational tool, but it failed to sell more than several dozen units. Lacking a microprocessor, it had only 256 bytes of computing power and its only output was a series of blinking lights.

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Cray-1, 1976
At the time of its release, the Cray-1, above, was the fastest computing machine at the world. Despite its price tag  between $5 and $10 million  it sold well. It is one of the many machines designed by Seymour Cray, a computer architect who devoted his life to the creation of so-called supercomputers, machines which prioritized processing capacity and speed of calculation.

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