20th century invection electric

  • 2020 BCE

    5th generation

    are the most advance technology, this is called artificial intelligence . robots works in this technology
  • Period: to

    firts generation

    is a first computer :ENIAC,
    Very large an expesive,
    they use vacum tubes
  • Period: to

    second generation

    they used transistors insteed of vacum tubes, integrate or calculate
  • Period: to

    3rd generation

    they integrated a circuit , is small transistor
  • 4th generation

    they use a microprocesors ,is small silicon chip the computer is smller ,portable and cheaper and they useless electricity