• Thumbnail for Arithmometer
    The arithmometer (French: arithmomètre) was the first digital mechanical calculator strong and reliable enough to be used daily in an office environment...
    30 KB (3,859 words) - 14:24, 13 March 2025
  • Thumbnail for Odhner Arithmometer
    The Odhner Arithmometer was a very successful pinwheel calculator invented in Russia in 1873 by W. T. Odhner, a Swedish immigrant. Its industrial production...
    6 KB (625 words) - 08:10, 25 January 2025
  • Thumbnail for Mechanical calculator
    arithmometer was the only type of mechanical calculator available for sale until the industrial production of the more successful Odhner Arithmometer...
    70 KB (9,298 words) - 18:59, 7 April 2025
  • Thumbnail for Charles Xavier Thomas
    the first commercially successful mechanical calculator, known as the Arithmometer. Additionally, he founded the insurance companies Le Soleil and L'aigle...
    5 KB (580 words) - 02:53, 14 April 2025
  • Thumbnail for Leibniz wheel
    Thomas de Colmar when he used it, a century and a half later, in his Arithmometer, the first mass-produced calculating machine. It was also used in the...
    7 KB (812 words) - 07:10, 25 January 2025
  • Thumbnail for Burroughs Corporation
    business equipment. The company was founded in 1886 as the American Arithmometer Company by William Seward Burroughs. The company's history paralleled...
    30 KB (3,314 words) - 13:22, 11 February 2025
  • Thumbnail for Pinwheel calculator
    extremely popular with the success of Thomas' Arithmometer (manufactured 1850s) and Odhner Arithmometer (manufactured 1890s). In "Machina arithmetica...
    10 KB (1,108 words) - 07:09, 25 January 2025
  • Thumbnail for Willgodt Theophil Odhner
    working in St. Petersburg, Russia. He was the inventor of the Odhner Arithmometer, which by the 1940s was one of the most popular type of portable mechanical...
    5 KB (512 words) - 08:12, 25 January 2025
  • Thumbnail for Computer
    100th anniversary of the invention of the arithmometer, Torres presented in Paris the Electromechanical Arithmometer, which allowed a user to input arithmetic...
    139 KB (14,061 words) - 01:41, 4 May 2025
  • Thumbnail for Computer science
    100th anniversary of the invention of the arithmometer, Torres presented in Paris the Electromechanical Arithmometer, a prototype that demonstrated the feasibility...
    72 KB (6,673 words) - 05:26, 18 April 2025
  • Thumbnail for Calculator
    forty years later, by 1890, about 2,500 arithmometers had been sold plus a few hundreds more from two arithmometer clone makers (Burkhardt, Germany, 1878...
    74 KB (8,430 words) - 18:24, 22 April 2025
  • Theophil Odhner (1845–1905), Swedish engineer and inventor of the Odhner Arithmometer working in Russia Nils Johan Teodor Odhner (1879–1928), Swedish arctic...
    1 KB (105 words) - 19:20, 26 October 2019
  • Thumbnail for American Arithmometer Company
    The American Arithmometer Company was an American manufacture organized in St. Louis, Missouri in 1886 by William S. Burroughs that produced adding machines...
    12 KB (1,214 words) - 02:10, 12 November 2023
  • Thumbnail for Pascaline
    multiplication feature to the Pascaline. In 1820, Thomas de Colmar designed his arithmometer, the first mechanical calculator strong enough and reliable enough to...
    51 KB (5,646 words) - 23:28, 4 May 2025
  • Thumbnail for Adding machine
    mechanical calculator industry in 1851 when he released his simplified arithmometer (it took him thirty years to refine his machine, patented in 1820, into...
    9 KB (1,208 words) - 03:10, 14 April 2025
  • Thumbnail for Analytical engine
    100th anniversary of the invention of the arithmometer, Torres presented in Paris the electromechanical arithmometer, which consisted of an arithmetic unit...
    43 KB (3,896 words) - 07:25, 17 April 2025
  • Thumbnail for Serial number
    fallback Vehicle identification number – System for identifying vehicles Arithmometer – 19th-century mechanical calculator patented by French inventor Thomas...
    9 KB (1,082 words) - 09:08, 27 April 2025
  • Thumbnail for William Seward Burroughs I
    banking industry, and adoption spread. Burroughs founded the American Arithmometer Company in 1886. After his death, in 1904 partner John Boyer renamed...
    6 KB (618 words) - 19:50, 22 January 2025
  • A Walther WSR160 arithmometer from 1960. Each turn of the crank handle adds (up) or subtracts (down) the operand set to the top register from the value...
    13 KB (1,788 words) - 11:25, 10 April 2025
  • Thumbnail for Information Age
    Industrial Revolution had produced mass-market calculators like the arithmometer and the enabling technology of the punch card. Charles Babbage proposed...
    100 KB (10,540 words) - 14:43, 7 May 2025
  • Thumbnail for Comptometer
    was the first machine in production to challenge the supremacy of the arithmometer and its clones; but not immediately, it took almost three years to sell...
    18 KB (2,413 words) - 07:41, 25 January 2025
  • Thumbnail for Sputnik 1
    the launch vehicle and the satellite were initially calculated using arithmometers and six-digit trigonometric tables. More complex calculations were carried...
    79 KB (8,412 words) - 01:24, 5 May 2025
  • Thumbnail for Stylus (computing)
    stylus was used to turn the dials. Later devices of this type include the Arithmometer, in the 1860s; and the Addiator, in 1920. The Addiator was a pocket mechanical...
    9 KB (918 words) - 01:51, 10 October 2024
  • Thumbnail for Gottfried Wilhelm Leibniz
    calculator in 1685 and invented the Leibniz wheel, later used in the arithmometer, the first mass-produced mechanical calculator. In philosophy and theology...
    155 KB (19,219 words) - 06:37, 7 May 2025
  • gun – Thorsten Nordenfelt Northrop Loom – James Henry Northrop Odhner Arithmometer – Willgodt Theophil Odhner Odón device – Jorge Odón Ormerod link – Edward...
    24 KB (1,838 words) - 23:24, 1 May 2025
  • Thumbnail for Mechanical computer
    said to encapsulate most of the elements of modern computers. Odhner Arithmometer, 1873 – W. T. Odhner's calculator who had millions of clones manufactured...
    20 KB (1,753 words) - 10:11, 21 March 2025
  • Thumbnail for Floating-point arithmetic
    entered through a typewriter, as was the case of his Electromechanical Arithmometer in 1920. In 1938, Konrad Zuse of Berlin completed the Z1, the first binary...
    119 KB (14,230 words) - 21:43, 8 April 2025
  • Thumbnail for Machine
    none of the larger designs were completed in Babbage's lifetime. The Arithmometer and the Comptometer are mechanical computers that are precursors to modern...
    57 KB (6,399 words) - 01:32, 4 May 2025
  • Thumbnail for Frank Stephen Baldwin
    the office of a life insurance company at St. Louis, he had seen an arithmometer, a calculating machine devised by Charles Xavier Thomas around 1820 and...
    8 KB (955 words) - 05:47, 16 April 2024
  • Thumbnail for Thomas Hill (clergyman)
    Order of Studies John Scott Medal, Franklin Institute Mechanical Calculators of the 19th Century Hill Arithmometer U.S. Patent 18692 T. Hill Arithmometer...
    6 KB (425 words) - 17:36, 13 November 2024