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It could be any of the following:

  1. Charles Babbage (1830s) as he was the first to design a computer (the mechanical Analytical Engine), however he was unable to build it.
  2. Alan Turing (1936) he was the first to develop the concept that programs and data could be stored in identical forms, but he only used this as part of a mathematical proof (his paper On Computable Numbers) and was not considering building computers until after World War 2 ended.
  3. Howard Aiken (1942) designed and had IBM build the Harvard Mark 1 electromechanical digital computer, the first programmable digital computer.
  4. John V. Atanasoff (1936 to 1942) designed and built the first electronic digital computer (Atanasoff-Berry Computer or ABC), however it could only solve simultaneous equations and was not programmable.
  5. J. Presper Eckert and John Mauchley (1942 to 1946) designed and built first electronic programmable digital computer (ENIAC) and the concept of the stored program computer (but did not use this concept in ENIAC as the design was already frozen). Designed and built the UNIVAC stored program computer.

Note: many others contributed to the early development of computers.

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8y ago

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