History of computers

By 19martensb
  • Leibniz invents the Stepped Reckener

    Leibniz invents the Stepped Reckener

    The Stepped Reckener was the first to add, sutract, multiply, divide, and divide square roots.

  • Blaise Pascal invents the pascaline

    It only preformed addition and it never worked.

  • Charles Babbage invents Analytical Engine

    Followed programs on punch cards and designed to make decisions.

  • Ada Byron

    First programmer and stated no commputer no matter how powerful they can think today.

  • Hollerith creates IBM

    Herman Hollerith created (now) IBM

  • ENIAC is invented

    Eniac/ABC still needed pulling, plugging & switch flipping to change

  • John Von Neumann

    Idea of stored program in CPU to control all functions. Solved problems with instructions on paper tape.
  • UNIVAC is invented

    UNIVAC is invented

    used stored program concept correctly & first computer language (C-10) with first keyboard.

  • The abc is developed

    ABC (first electronic computer) used binary number system of 1s and 0s still used today.

  • Bill Gates

    Created a BASIC language interpreter (1975)
    Founded Microsoft (1977)
    Developed MS-DOS for PCs and Windows

  • Mainframes to Microcomputers

    Large & Expensive ($100,000-millions range)
    Large corporations, banks, governments & universities
  • first apple commputer

    first apple commputer

    Stephen Wozak and Steve Jobs built the first apple commputer in a garrage.
  • Fouth generation computers

    Fouth generation computers

    Made Microcomputers (computer small enough to fit on a desktop) possible

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