History of Computers

By Marco Nicolás González

  • the invented of electrticity

    the invented of electrticity
    was invented in 20th century

  • first computer

    first computer
    to1955.
    Eniak. vacuum tubes: there are a device that controls electric current flow in a hight vacuum between electrodes.

  • The transitors

    The transitors
    and 1964.
    Transitors: instead vacuum tubes.