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17/04/1944 Harvard Mark I computer starts operation


Giant "calculator" (the Mark I computer) solves mathematics problems at Harvard U...HD Stock Footage


Harvard Mark I


Harvard Mark I FIRST Programmable Computer In USA Harvard University Boston


1944 Computer History: IBM ASCC "Harvard Mark 1" world's largest electro-mechanical calculator

The IBM Automatic Sequence Controlled Calculator, called Mark I by Harvard University’s staff, was a general purpose electromechanical computer that was used in the war effort during the last part of World War II. One of the first programs to run on the Mark I was initiated by John von Neumann.
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    • Essentials 

    • Origins 

    • Design and construction 

    • Operation 

    • Instruction format 

    • Contribution to the Manhattan Project 

    • Aiken and IBM 

    • Successors