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 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This lightweight modified stepped ...

Earlier this year, [Dan Maloney] went inside mechanical calculators. Being the practical sort, [Dan] jumped right into the Pascaline invented by Blaise Pascal. It couldn’t multiply or divide. He then ...

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IBM turns 100 years old on Thursday, and what a trip the company has made from its origins in punch cards and "calculating machines." Here, a brief history of innovation from the tech powerhouse. From ...

Grant’s difference engine was invented in 1876 by George Grant. It was a calculating machine and was invented as a way to advance the current calculating machine technology. It used the latest design ...

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 ...

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 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 ...