history of computers

  • 2300 BCE

    The start of computing

    The start of computing
    earliest known tool used for computing is the Sumerian abacus
  • 2000 BCE

    2nd

    2nd
    Archimedes uses the mechanical principle of balance to calculate mathematical problems
  • 100 BCE

    3rd

    3rd
    The Antikythera mechanism is created as the earliest known geared computing device. It was designed to calculate astronomical positions.
  • 4th

    4th
    Charles Sanders Peirce does an experiment that is carried out by electrical switching circuits.