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  1. A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or (historically) a simulation such as an analog computer or a slide rule.

  2. Pascal's calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen.

  3. Nov 11, 2023 · Mechanical calculators were the first machines that could reliably perform arithmetic operations quickly and accurately. Let‘s explore the key milestones in their history and the massive impact these devices had.

  4. The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London and completed in 1694).

  5. Mechanical Keyboard Standard Calculator 12 Digit,Desktop Large Display and Buttons,Calculator with Large LCD Display for Office,School, Home & Business Use,Automatic Sleep,with Battery (Green) 324. ₹2,286. M.R.P: ₹4,652. (51% off) FREE delivery 18 - 21 Jun. Add to cart. Amazon's Choice.

  6. Apr 16, 2024 · A mechanical calculator, also known as a calculating machine, is a mechanical device that automatically performs basic arithmetic operations or (historically) a simulation, such as an analog computer or a slide rule.

  7. Mechanical Calculation. In the 17th and 18th centuries, clockwork and precision engineering made it possible to build devices that could add and subtract at the turn of a dial. The designs of these adding machines differed in important ways.

  8. My Mechanical Calculators. This page is devoted to my collection of (mostly) mechanical calculators. If you have comments, you can contact me (Jaap Scherphuis) at mechcalc@jaapsch.net (English or Dutch). On the left you can filter the list of calculators by selecting only the categories that you want to see.

  9. Pascaline, the first calculator or adding machine to be produced in any quantity and actually used. The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644. It could only do addition and subtraction, with numbers being entered by manipulating.

  10. Sep 1, 2017 · Mechanical calculators are an engineering marvel unknown to most people. The most advanced mechanical calculator ever built, the Curta calculator, fits into the palm of your hand and uses dozens...