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Banking Computers Science IBPS Bank PO Main Exam 2016

  • question_answer
    To access the services of operating system, the interface is provided by the

    A)  System calls     

    B)  API

    C)  Library

    D)  Assembly instructions

    E)  None of these

    Correct Answer: A

    Solution :

    [a] System calls are programming interface to the services provided by the OS. They are typically written in a high-level language (C or C++) and are the set of abstract operations that the operating system provides to the applications programs. They lie at the top of the operating system.


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