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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