R (2)

history of computers

By Selene.mateeos
  • 20th century

    20th century

    Invention of electicity
  • Period: to

    1st generation

    ENIAC
    Electrical numerical integration and calculator.
    large and expensive
    vacuum tubes
  • Period: to

    2nd generation

    Made by transistors
    -Much smaller
    -Faster
    -Cheaper
  • Period: to

    3rd generation

    Made by integrate, circuits, smaller, faster and cheaper
  • Period: to

    4th generation

    Microprossessd (small silicon chip with thousand of circuits smaller, portables, cheaper, less electricity and less heat
  • Period: to

    5th generation

    sients are developing they can `` THINK ´´ on their on