Christel Hamann’s difference engine was a type of mechanical calculator made in the 1900s. It was automatic and could help people calculate and arrange polynomial functions used in science, ...
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 ...
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The Complete History of The Burroughs Adding Machine
The Burroughs Adding Machine can still be purchased today from sites like eBay, usually for between $70 and $300, or more depending on the condition of the machine. At one point the Burroughs Adding ...
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