COMPUTER HISTORY AND EVOLUTION
DEVELOPMENT OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Vacuum Tubes
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Switchboards or Plug Boards
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Punch Cards
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Punch Tape
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Detailed explanation-1: -A 1944 electro-mechanical programmable calculating machine, the Automatic Sequence Controlled Calculator or Harvard Mark I, used paper tape with 24 rows. A row of smaller sprocket holes was always punched to be used to synchronize tape movement.
Detailed explanation-2: -The Automatic Sequence Controlled Calculator (Harvard Mark I) was the first operating machine that could execute long computations automatically. A project conceived by Harvard University’s Dr. Howard Aiken, the Mark I was built by IBM engineers in Endicott, N.Y.
Detailed explanation-3: -The Harvard Mark I was also known as the IBM Automatic Sequence Controlled Calculator (ASCC).
Detailed explanation-4: -The Harvard Mark I (also known as the IBM Automatic Sequence-Controlled Calculator) was a relay computer controlled by punched tape that IBM began to develop in 1939 and completed in 1944. It was based on a suggestion that had been put forward by Howard H. Aiken in 1937.