Counting Mechanically

• Joseph-Marie Jacquard

  • 1820 – automatic loom
    controlled by punch cards

• Charles Babbage (1791-1871)

  • 1820 – conceived
    of Difference Engine
  • Analytical Engine -
    1st general purpose computer
    (mechanical calculator)

• Herman Hollerith (1860-1929)

  • 1889 -US census

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