History of computers

  • Period: to

    1st Generation

    CHARACTERISTICS:
    -They were very expensive
    -They were very large
    -Used lots of electrictys
    ELECTRICAL COMPONENTS:
    -Vacuum tubes: Glass bulbs with wire, they carried data via electronic signals
    -There were very large and ineffucient, NO operating system.
  • ENIAC

    1st gen. computer-> used the ENIAC, and ended at 1946
  • Period: to

    2nd Generation

    CHARACTERISTICS:
    -Smaller, Faster and cheaper->than the previous generation.
    ELECTRICAL COMPONENTS:
    Transistors: Less heat produced, maintenance needed.
    Magnetic core: Made the memory, faster and reliable.
  • Period: to

    3rd Generation

    CHARACTERISTICS:
    -Less electricity needed, smaller, cheaper, faster.
    -Less heat.
    -More reliable.
    -Less maintenance needed.
    ELECTRICAL COMPONENTS: -Integrated circuits-> 1000 times as faster as transistors, as smaller as a transistors
  • Period: to

    4th Generation

    CHARACTERISTICS:
    -Smaller, more portable cheaper, less electricity needed.
    ELECTRICAL COMPONENTS:
    -Microprocessors:-> Silicon chips with thousands of circuits.
    NEW TECHNOLOGIES ADDED:
    -Wi-Fi, Bluetooth, internet, hard drive, RAM, the mouse.
  • Period: to

    5th Generation

    CHARACTERISTICS:
    -These are the fastest and most advanced kind of computer:->Some of them use quantum techonlogy to process information faster.
    -They come with AI (Artificial Intelligence)
    ELECTRICAL COMPONENTS:
    They use microprocessot just as 4th generation computers.