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History of computers

By _.ruubiiaahh._
  • Period: to

    1.phase

    -They are made of large empty tubes
    -They use a lot of electricity
    -They were used only as calcifiers
  • Period: to

    2. phase

    -use smaller, cheaper and faster transmitters
  • Period: to

    3.phase

    -IC is smaller but faster
    -computers are faster and cheaper
    -have fewer errors and less electricity
  • Period: to

    4.phase

    -use micro processors
    -They are portable and they are smaller and cheaper
    -use less electricity
  • Period: to

    5.phase

    -they are more advance
    -they can think themselves