HISTORY OF OPERATING SYSTEM

  • LEO

    LEO
    -J. Lyons and Co.
    -Oliver Standingford and Raymond Thompson
    -NOT DEFINE
  • BOS/360

    -IBM
    -IBM
    -WASNT SELL
  • Macintosh

    Macintosh
    -APLLE
    -STEVE JOBS
    -NOT FOR SELL
  • WINDOWS

    WINDOWS