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MARK 1 computer
It was a general-purpose electromechanical computer used in the war effort during the last part of World War II.The original concept was presented to IBM by Howard Aiken in November 1997.The ASCC was built from switches, relays, rotating shafts, and clutches.The Automatic Sequence Controlled Calculator was the first operating machine that could execute long computations automatically.The Mark 1 had 60 sets of 24 switches for manual data entry and could store 72 numbers, each 23 decimal digit