Second Generation Of Computers

Second Generation of Computers - Transistors -

(1959  – 1965  )

    Used Transistors instead of Vacuum tubes

    Transistors was invented at Bell Labs jointly by three

 individuals, William Bradford Shockley, Walter Houser

 Brattain, and John Bardeen in 1947

    Few examples are, IBM 7094 series, IBM 1400 series and CDC 1604, UNIVAC – 1108, CDC – 3600, Honeywell - 400 etc.

    Core storage was its main feature.

    Magnetic core and Magnetic tape or disc were used to store data

    Magnetic tape and punched cards were the input and output devices

    Programming languages were machine language and assembly language

    Main programming languages used were FORTRAN, COBOL, ALGOL

    Calculation time was very low compared to first generation computers