History of Computer Technology Timeline

By lauren kouassi

  • The Mechanical Devices

    1830-1850
    The Analytical Engine was a proposed mechanical general-purpose computer designed by Charles Babbage
    Late in his life, Babbage sought ways to build a simplified version of the machine, and assembled a small part of it before his death

  • Electro-Mechanical Devices

    1937-41
    John Vincent Atanasoff
    A stored-program computer is one which stores program instructions in electronic memory.

  • First Generation Computers: The Stored Program Computer

    1941-1956
    Electronic Numerical Integrator and Computer (ENIAC) was made by a partnershp between John Presper Eckert and John W. Mauchly. it was made of 18,000 vacuum tubes and 7000 resistors.

  • The Second Generation Computers: High-Level Programming Languages

    1956-1963
    Transistor computer
    University of Manchester's
    they transistors instead of vacuum tubes.
    the instructions of second generatoin computers could be stored inside the computer's memory. High-level languages such as COBOL and FORTRAN were used, and they are still used for some applications

  • Third Generation Computers: Mainframes

    1964-1971
    Intergreated Circuit
    was invented in 1958 by Jack Kilby
    It combined electronic components onto a small silicon disc(chip)

  • Fourth Generation Computers: The Personal Computer

    1971-Present
    Alan Kay
    laptop
    Fourth Generation computers are the modern day computers. The Size started to go down with the improvement.