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Quote: in 1694, Leibnitz built a machine for multiplication using a crank to set and turn all wheels simultaneously; his stepped reckoner remains in use
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history of computers
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Independently, in 1671, Leibnitz [refs] conceived a multiplying … by hand; in Leibnitz' machine all wheels were … Leibnitz added a device which still occurs as … Google-1 Google-2
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Topic: history of computers (66 items)