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  2. Pascaline - Wikipedia

    en.wikipedia.org/wiki/Pascal's_calculator

    Pascaline (also known as the arithmetic machine or Pascal's calculator) 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 . [ 2 ]

  3. Mechanical calculator - Wikipedia

    en.wikipedia.org/wiki/Mechanical_calculator

    The 17th century marked the beginning of the history of mechanical calculators, as it saw the invention of its first machines, including Pascal's calculator, in 1642. [ 4 ] [ 16 ] Blaise Pascal had invented a machine which he presented as being able to perform computations that were previously thought to be only humanly possible.

  4. Blaise Pascal - Wikipedia

    en.wikipedia.org/wiki/Blaise_Pascal

    In 1642, he started some pioneering work on calculating machines (called Pascal's calculators and later Pascalines), establishing him as one of the first two inventors of the mechanical calculator. [8] [9] Like his contemporary René Descartes, Pascal was also a pioneer in the natural and applied sciences.

  5. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    The Arithmometer, invented in 1820 as a four-operation mechanical calculator, was released to production in 1851 as an adding machine and became the first commercially successful unit; forty years later, by 1890, about 2,500 arithmometers had been sold [16] plus a few hundreds more from two arithmometer clone makers (Burkhardt, Germany, 1878 ...

  6. History of computing hardware - Wikipedia

    en.wikipedia.org/wiki/History_of_computing_hardware

    Pascal invented his machine in 1642. In 1642, while still a teenager, Blaise Pascal started some pioneering work on calculating machines and after three years of effort and 50 prototypes [18] he invented a mechanical calculator. [19] [20] He built twenty of these machines (called Pascal's calculator or Pascaline) in the following ten years. [21]

  7. Adding machine - Wikipedia

    en.wikipedia.org/wiki/Adding_machine

    Blaise Pascal and Wilhelm Schickard were the two original inventors of the mechanical calculator in 1642. [1] For Pascal, this was an adding machine that could perform additions and subtractions directly and multiplication and divisions by repetitions, while Schickard's machine, invented several decades earlier, was less functionally efficient ...

  8. Stepped reckoner - Wikipedia

    en.wikipedia.org/wiki/Stepped_reckoner

    Despite the mechanical flaws of the stepped reckoner, it suggested possibilities to future calculator builders. The operating mechanism, invented by Leibniz, called the stepped cylinder or Leibniz wheel, was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator.

  9. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/.../Timeline_of_historic_inventions

    1630: Slide rule: invented by William Oughtred [387] [388] 1642: Mechanical calculator. The Pascaline is built by Blaise Pascal. [389] 1643: Barometer: invented by Evangelista Torricelli, or possibly up to three years earlier by Gasparo Berti. [390] 1650: Vacuum pump: Invented by Otto von Guericke. [391] 1656: Pendulum clock: Invented by ...