Atanasoff-Berry Computer

Atanasoff-Berry Computer

 an early digital computer. It was generally believed that the first electronic digital computers were the Colossus, built in England in 1943, and the ENIAC, built in the United States in 1945. However, the first special-purpose electronic computer may actually have been invented by John Vincent Atanasoff, a physicist and mathematician at Iowa State College (now Iowa State University), during 1937–42. (Atanasoff also claimed to have invented the term analog computer to describe machines such as Vannevar Bush (Bush, Vannevar)'s differential analyzer.) Together with his graduate assistant Clifford E. Berry, Atanasoff built a successful small prototype in 1939 for the purpose of testing two ideas central to his design: capacitors to store data in binary (binary number system) form and electronic logic circuits to perform addition and subtraction. They then began the design and construction of a larger, more general-purpose computer, known as the Atanasoff-Berry Computer or the ABC.

      Various components of the ABC were designed and built from 1939 to 1942, but development was discontinued with the onset of World War II. The ABC featured about 300 vacuum tubes (electron tube) for control and arithmetic calculations, use of binary numbers, logic operations (instead of direct counting), memory capacitors, and punched cards as input/output units (input/output device). (At Atanasoff's invitation, another early computer pioneer, John Mauchly (Mauchly, John W.), stayed at Atanasoff's home and was freely shown his work for several days in June 1941. For more on the ramifications of this visit, see BTW: Computer patent wars.)

Paul A. Freiberger Michael R. Swaine
 

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Universalium. 2010.

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  • Atanasoff-Berry Computer — Atanasoff–Berry Computer Atanasoff–Berry Computer est l un des tout premiers ordinateurs. Sa conception par John Vincent Atanasoff et Clifford Berry datant de 1937, il fut reconnu après un procès comme le premier ordinateur numérique électronique …   Wikipédia en Français

  • Atanasoff–Berry Computer — est l un des tout premiers ordinateurs. Sa conception par John Vincent Atanasoff et Clifford Berry datant de 1937, il fut reconnu après un procès comme le premier ordinateur numérique électronique (ce que défendait être l ENIAC). Il …   Wikipédia en Français

  • Atanasoff–Berry Computer — The Atanasoff–Berry Computer (ABC) was the first electronic digital computing device. [Citation | date = 1976 | editor last = Ralston | editor first = Anthony | editor2 last = Meek | editor2 first = Christopher | title = Encyclopedia of Computer… …   Wikipedia

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  • Atanasoff-Berry-Computer — ABC Nachbau im Durham Center, Iowa Der Atanasoff Berry Computer („ABC“) war der erste elektronische Digitalrechner und wurde von John Atanasoff und Clifford Berry in den Jahren 1937–1941 am Iowa State College gebaut. Die Maschine basierte auf dem …   Deutsch Wikipedia

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  • Ordinateur Atanasoff–Berry — Atanasoff–Berry Computer Atanasoff–Berry Computer est l un des tout premiers ordinateurs. Sa conception par John Vincent Atanasoff et Clifford Berry datant de 1937, il fut reconnu après un procès comme le premier ordinateur numérique électronique …   Wikipédia en Français

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