Operating system

By gehrig knaus

  • MILITARY

    sourceThe ENIAC (Electronic Numerical Integrator and Computer) is arguably the first general-purpose electronic computer. It was created for a very specific purpose: to rapidly compute firing tables for the military.

  • First operating system

    First operating system
    source1956, GM-NAA I/O: Developed by Robert L. Patrick of General Motors for use on their IBM 704 mainframe.

  • batch processing

    sourceThe operating systems of the 1960's were also batch processing systems, but they were able to take better advantage of the computer's resources by running several jobs at once.

  • Old things are still used

    source1961, MCP (Master Control Program): Developed by Burroughs Corporations for their B5000 mainframe. But is still used.

  • IBM turns soft

    source1966, DOS/360: After years of being strictly in the hardware business, IBM ventured into the OS.

  • Acceptance by many

    source1969, Unix: Developed by AT&T Bell Labs programmers Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna. It gained widespread acceptance first within the large AT&T company, and later by colleges and universities.

  • Simple side projected goes big

    1973, CP/M (Control Program/Monitor (later re-purposed as “Control Program for Microcomputers”): Developed by Greg Kildall as a side project for his company Digital Research. CP/M became a popular OS in the 1970′s.

  • personal comp.

    sourceThe first personal computer to hit the market was the ALTAIR, which came in a kit for hobbyists. But the ALTAIR didn't have onboard memory -- it could just execute simple commands.

  • University thinks BIG

    source1977, BSD (Berkeley Software Distribution): Developed by the University of California, Berkeley. BSD is a Unix variant based on early versions of Unix from Bell Labs.

  • Window to the future

    source1981, MS-DOS: Developed by Microsoft for the IBM PC’s. It was the first widely available Operating Systems for home users. In 1985, Microsoft released Microsoft Windows, which popularized the Operating System even more.
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  • microsystem popular

    source1982, SunOS: Developed by Sun Microsystems, SunOS was based on BSD. It was a very popular Unix variant.