Lieutenant Grace Hopper codes problems onto punch tape for feeding into a new calculating machine invented by Commander Howard H. Aiken, USNR. The calculator will be presented to Harvard University by IBM Corporation, for use by the US Navy for the duration of the war. The machine is a revolutionary new electrical device of major importance to the war effort. It will explore vast fields in pure mathematics and in all sciences, previously barred by excessively intricate and time-consuming calculations. Two years of research were required to develop the basic theory behind the giant calculator. Six years of design and construction and testing were necessary to transform Commander Aiken's original conception into the completed machine at the engineering laboratory of IBM in Endicott, N.Y.
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