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George Stibitz, American computer scientist.

George Stibitz, American computer scientist.

H419/0191

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3368 x 5211 pixels

28.4 x 44.2 cm ⏐ 11.2 x 17.4 in (300dpi)

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

George Stibitz. Portrait of George Robert Stibitz (1904-95), American computer scientist. Stibitz gained a doctorate in mathematical physics from Cornell University and began work for Bell Telephone Laboratories. In 1937 he utilised telephone relays to design the first binary calculator. In 1939 Stibitz built a more complicated 'complex number calculator'. Though reliable and easy to use, it could not be programmed and did not have a memory. Stibitz later designed program-controlled calculators but these became redundant due to the development of electronic digital computers. Photographed in 1937.

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