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George Stibitz's teletype was connected in New York to unique telephone lines. We still use phone lines toady on desktop computers.
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Konrad Zuse's (Z3) had 22-bit word length and was used for aerodynamic calculations. The computers to day have a lot more than 22-bites today.
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John Vincent Atanasoff's computer is related to several basic computers concepts. Know we have advanced desktops and laptop for this concept.
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Howard Aiken's Mark 1 was built by IBM and was the beginning of electric stored-programs for the computers.
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John Mauchly's and J. Presper Eckert's computer system used tubes and computed faster then previous computers.
