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.

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