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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 ...
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 , France. [ 2 ]
Casio fx-7000G; the world's first graphing calculator. An early graphing calculator was designed in 1921 by electrical engineer Edith Clarke. [1] [2] [3] The calculator was used to solve problems with electrical power line transmission.
Burroughs filed his first patent for the invention of a "calculating machine" in 1885. It was designed to ease the monotony of clerical arithmetic. By 1890, they were well known in the banking industry, and adoption spread. [3]
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 [2] and completed in 1694). [1]
Was the first scientific calculator to fly in space in 1973. [5] HP-35 calculators were carried on the Skylab 3 and Skylab 4 flights, between July 1973 and February 1974. [6] Is the first pocket calculator with a numeric range that covered 200 decades (more precise 199, ±10 ±99). [5]
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. [3] [15] Blaise Pascal had invented a machine which he presented as being able to perform computations that were previously thought to be only humanly possible. [16]
First recorded use of this device was in 1889 in the Office of the Surgeon General of the Army. In 1896 Hollerith introduced improved model. [41] 1889 United States: Dorr Felt invented the first printing desk calculator. 1890 United States Sweden Russia: A multiplying calculator more compact than the Arithmometer entered mass production.