History of Computer

Timeline created by victorsun1685
  • Difference Engine

    Difference Engine
    Charles Babbage began to develop the Difference Engine. The Difference Engine was the first automatic computing machine that can calculate several sets of numbers.
  • Z1

    Konrad Zuse created the Z1, which was the first programmable computer that was functional. The Z1 had a memory of 64 words and a clock speed of 1 Hz.
  • Turing Machine

    Turing Machine
    Alan Turing laid the foundations of computing by developing the Turing Machine. The Turing Machine was a device that prints symbols on tape according to some rules, it was considered to be the pioneer of the modern computers we use today.
  • ABC

    The Atanasoff-Berry Computer (ABC) was the first electrical digital computer that was automatic. It had the ability to perform all calculations using electronics instead of mechanical switches.
  • Colossus

    The Colossus, developed by Tommy Flowers, was the earliest electric programmable computer. It was used to help the British army crack Germany messages.

    The EDSAC is considered to be the first computer that is able to run stored programs. The EDSAC ran the first graphical computer game on May 6, 1949.
  • Whirlwind Machine

    Whirlwind Machine
    The Whirlwind Machine by MIT was a revolutionary invention that was the first computer with RAM.
  • The first workstation

    The first workstation
    The Xerox Alto is considered to be the first workstation in computer history, it was fully functional and included a display and a mouse. The interface Xerox Alto operated like modern computers as it had windows, menus, as well as icons.
  • First "portable" computer

    First "portable" computer
    The IBM 5100, released on September 1975, is the first portable computer. The first "portable" computer weighed 55 pounds (that's not really portable) and had a 1.9 MHz processor, 64 KB RAM, and a five inch display.
  • Osborne I

    Osborne I
    Adam Osborne developed the first computer that was truly portable. The Osborne I weighed 24.5 pounds and had a display of 5 inch.
  • Windows 3.0

    Windows 3.0
    Microsoft introduced Windows 3.0 at the price of $149.95, it was the first windows that was widely successful.
  • Windows 95

    Windows 95
    WIndows 95 was a significant step in the development of the Windows series, it feautred a number of improvements including the graphical user interface and simplified "plug-n-play". Windows 95 was very successful as it sold a million copies in 4 days.
  • Windows XP

    Windows XP
    As the successor of Windows 3.1, Windows XP became an extremely popular version of Windows. Windows XP features many improvements, such as new GUI, wider hardware support, and higher mulitimedia capacities. It sold more than 400 million copies within the first 5 years, and a total of 1 billion copies were sold by April 2014.
  • Windows 7

    Windows 7
    Windows 7 is the successor of Windows Vista (which was poorly received), its enhancements include Internet Explorer 8, multi-touch support, new Media Centre, higher security, as well as a new "Superbar" that enables the user to pin applications to the taskbar.
  • Kenbak-1

    The Kenbak-1 is widely recognized as the world's first personal computer, it had a memory of 256 bytes and an instruction cycle of 1 MHz. The device relied on a number of switiches for inputting and outputting data.