SSC General Science & Technology Sample Paper NCERT Sample Paper-4

  • question_answer
    Which one of the following pairs is involved in the development of Unix Operating System?

    A)  Ken Thompson and Dennis Ritchie

    B)  Richard Stallman and Marie Stallman

    C)  Andrew S. Tanenbaum and Linus Torvalds

    D)  Dennis Ritchie and Linus Torvalds

    Correct Answer: A

    Solution :

    [a] Unix (trademarked as UNIX) is a family of multitasking multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research centre by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties from the late 1970s, leading to a variety of both academic and commercial variants of Unix from vendors such as the University of California, Berkeley (BSD), Microsoft (Xenix), IBM (AIX) and Sun Microsystems (Solaris).

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