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The Step Reckoner, invented by Gottfried Wilhelm Leibniz in the 17th century, was an early calculating machine designed to perform addition, subtraction, multiplication, and division. It used a series of cylinders and gears, where each cylinder represented a digit in a number. By turning the handle, the machine engaged the gears to carry out calculations mechanically, with the result displayed through a series of dials. This innovative device laid the groundwork for future mechanical calculators.

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2w ago

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