Rockefeller Differential analyzer a one-hundred-ton machine with 2000 vacuum tubes and 150 motors, and weighed 100 tons It was an analog computer. An analog computer carries out an analogy of a real physical process It was invented 1942 (19 ore 16 min, 26 nov 1860 anni – 14 ore 5 min, 21 marzo 1942 anni)
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Data:
19 ore 16 min, 26 nov 1860 anni
14 ore 5 min, 21 marzo 1942 anni
~ 81 years