Atanasoff-Berry Computer

(computer)(ABC) An early design for a binary calculator, oneof the predecessors of the digital computer. The ABC waspartially constructed between 1937 and 1942 by Dr. John Vincent Atanasoff and Clifford Berry at Iowa State College.As well as binary arithmetic, it incorporated regenerative memory, parallel processing, and separation of memory andcomputing functions.

The electronic parts were mounted on a rotating drum, makingit hybrid electronic/electromechanical. It was designed tohandle only a single type of mathematical problem and was notautomated. The results of a single calculation cycle had tobe retrieved by a human operator, and fed back into themachine with all new instructions, to perform complexoperations. It lacked any serious form of logical control orconditional statements.

Atanasoff's patent application was denied because he neverhave a completed, working product. Ideas from the ABC wereused in the design of ENIAC (1943-1946).

http://cs.iastate.edu/jva/jva-archive.shtml.

单词	atanasoff-berry computer
释义	Atanasoff-Berry Computer Atanasoff-Berry Computer (computer)(ABC) An early design for a binary calculator, oneof the predecessors of the digital computer. The ABC waspartially constructed between 1937 and 1942 by Dr. John Vincent Atanasoff and Clifford Berry at Iowa State College.As well as binary arithmetic, it incorporated regenerative memory, parallel processing, and separation of memory andcomputing functions. The electronic parts were mounted on a rotating drum, makingit hybrid electronic/electromechanical. It was designed tohandle only a single type of mathematical problem and was notautomated. The results of a single calculation cycle had tobe retrieved by a human operator, and fed back into themachine with all new instructions, to perform complexoperations. It lacked any serious form of logical control orconditional statements. Atanasoff's patent application was denied because he neverhave a completed, working product. Ideas from the ABC wereused in the design of ENIAC (1943-1946). http://cs.iastate.edu/jva/jva-archive.shtml. AcronymsSeeABC
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