Computer history

By katkinson15

  • Flip Flop

    Two American physicists, Eccles and Jordan, invent the flip-flop circuit which will be necessary for high-speed electronic calculating.

  • Teletypewriters

    Teletypewriters and teleprinters come into limited use in Britain, Germany and the US

  • Typewriter

    IBM introduces the electric typewriter

  • Calculator complete

    Calculator complete
    Konrad Zuse completes his Z1 calculating machine

  • Introduction of the calculator

    Zuse introduces his Z1, the first programmable calculating machine.

  • first digital computer

    Zuse completes his Z3, the first program-controlled electromechanical digital computer.

  • Colossus Computer

    In Britain, the Colossus computer is completed and set to work breaking German codes

  • Z4

    Z4
    Zuse completes his Z4

  • Hard Drive

    Hard Drive
    IBM builds the first hard drive. It contains fifty 24 inch disks, has a capacity of 5 MB

  • first disk

    first disk
    BM introduces RAMAC, a memory storage device based on rotating disks.