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Computer History 1

  • Jan 1, 1500

    The Abacus

    The Abacus
    The abacaus was invented in Asia but was used in Ancient Babylon, China and Europe until the late middle ages.
  • The Pascaline

    The Pascaline
    The French philosopher and mathmatician named Balise Pascal invented this calculating device which had 8 dial wheels and could calculate figures up to eight figures long.
  • Gottfried Invention

    Gottfried Invention
    This invention was a step up from the pascaline as instead of adding and subtracting only it now multiplies and divides.
  • Joseph Jacquard Discovery

    Joseph Jacquard Discovery
    A French weaver who discovered that the weaving instructions for his looms could be stored on cards with hoels punched in them. The idea or storing information bu punching holes on a card proved to be of great importance in the later development of computers.
  • Difference/Analytical Engines

    Difference/Analytical Engines
    Charles Babbage designed these two calculating machines. The "Difference Engine" could perform complex operations such as squaring numbers automatically. The "Analytical Engine" design included input devices, data storage, a control unit that allowed processing instructions in any sequence , and output devices.
  • The Mark I

    The Mark I
    The Mark I is the world's first computer-like machine. It was built jointly by IBM and Harvard Universtiy under the leadership of Howard Aiken. Punched cards were used to feed data into the machine.
  • The Design Rules of Computers

    The Design Rules of Computers
    The rules were given by John von Neuman. His design included components such as arithmetic logic unit, a control unit, memory, and input/ouput devices. This design makes it possible to store the programming instructions and the data in the same memory space.
  • Transistors\Chips

    Transistors\Chips
    The invention of transistors reesulted in smaller, faster, more reliable, and more engery-efficiant computers. These were later replaced with tiny intergrated circuit, or "chips". Chips are smaller and cheaper than transistors and can contain thousands of circuits on a single chip.
  • The Microprocessor

    The Microprocessor
    An entire CPU on a single chip.
  • Apple

    Apple
    Stephen Wozniak and Steven Jobs designed and built the first Apple computer in their garage.
  • IBM Computer

    IBM Computer
    IBM introduced their own personal computer.
  • Clones

    Clones
    Clones of the IBM PC made the personal computer more affordable.