UGC-NET | UGC NET CS 2017 Jan – III | Question 66

Names of some of the Operating Systems are given below:
(a) MS-DOS
(b) XENIX
(c) OS/2
In the above list, following operating systems didn’t provide multiuser facility.
(A) (a) only
(B) (a) and (b) only
(C) (b) and (c) only
(D) (a), (b) and (c)


Answer: (D)

Explanation:
MS-DOS is an operating system for x86-based personal computers mostly developed by Microsoft. It doesn’t provide multi-user facility.
XENIX is a discontinued version of the Unix operating system for various microcomputer platforms, licensed by Microsoft from AT&T Corporation. It doesn’t provide multi-user facility.
OS/2 is a series of computer operating systems, initially created by Microsoft and IBM. It doesn’t provide multi-user facility.
So, Option (D) is correct.


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