Banking Computers IBPS RRBs Officer Exam Scale-I II CWE 12-09-2015

  • question_answer Which one of the following statements is true?

    A)  Single-user multitask are also known as NOS

    B)  Windows OS are the most commonly used single- used multitask operating systems.

    C)  Single-user OS are commonly  used in robotics

    D)  Supercomputers use single user multitask OS.

    E)  OS is not a must for a computer.

    Correct Answer: B

    Solution :

    [b] The Microsoft Windows operating systems and the Macintosh operating system are the most commonly used single-user multi-task operating systems (Informatics: Technology In Action by Evans). Single-user multitasking operating systems allow a single user on a single computer to perform more than one task at a time.


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