Most early calculating machines carried out multiplication as a form of repeated addition. To multiply, say, by thirteen, one set the carriage at its rightmost position, turned the operating crank ...

This compact cylindrical handheld calculating machine has black metal sides and a plastic top and operating handle. Eight slots along the side of the cylinder hold levers that are pulled down to set ...

Large scale calculating machines may make it feasible for the government to set production goals for major industries, Frederick V. Waugh of President Truman's Council of Economic Advisers told a ...

A DISPLAY of calculating machines was arranged early this month by the Burroughs Adding Machine, Ltd.,at 136 Regent Street, London, W.I. The machines shown were of many types, ranging from the simpler ...

It’s no bigger than a drinking glass, and it fits easily in the palm of the hand. It resembles a pepper grinder—or perhaps a hand grenade. The diminutive “Curta” is a striking machine, a mechanical ...

THE first calculating machine was invented in 1642 by Blaise Pascal. Had it not been for the War, the tercentenary of this event, which has had such a profound influence on applied mathematics and ...

Christie’s, the British auction house, has halted the sale of the world's first calculator “La Pascaline” in Paris. The auction of the first calculating machine was scheduled for Wednesday, but the ...

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A rare liveaction and closeup study of the only existing Babbage Difference Engine a machine designed in the first quarter of the 19thCentury by English inventor and mathematician Charles Babbage The ...