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    kobe73er
    Keymaster

    1.What is an operating system? List some popular operating systems.

    The operating system (OS) is the most important program that runs on a computer.

    The OS manages and controls a computer’s activities.

    The popular operating systems  for general-purpose computers are

    • Microsoft Windows
    • Mac
    • OS, and Linux

    2.What are the major responsibilities of an operating system?

    • Controlling and monitoring system activities
    • Allocating and assigning system resources
    • Scheduling operations

    3.What are multiprogramming, multithreading, and multiprocessing?

     

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