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Stepped reckoner

 Home Mathematics History of mathematics History of computing History of computing hardware Mechanical calculators
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The Stepped Reckoner, invented by the German mathematician and philosopher Gottfried Wilhelm Leibniz in the late 17th century, is an early mechanical calculator. It was designed to perform addition, subtraction, multiplication, and division using a stepped drum mechanism. Leibniz's device utilized a series of gears and a stepped drum that allowed it to carry out calculations in a systematic manner.

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  1. Mechanical calculators
  2. History of computing hardware
  3. History of computing
  4. History of mathematics
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