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  1. op·er·at·ing sys·tem
    IPA[ˈäpəˌrādiNG ˌsistəm]
  2. noun

    • 1. the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.

  3. Variation

    • n.: noun: operating system, plural noun: operating systems

    • noun

      the low-level software that supports a computer's basic functions, such as scheduling tasks and controlling peripherals.
    • noun

      see DOS
    • noun

      see DOS
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