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Where Did UNIX Come From And Why Are There Different Versions Of UNIX?

Part I of Essay
? The first efforts at developing a multi-user, multi-tasking operating system were begun in the 1960's in a development project called MULTICS. While working for Bell Telephone Laboratories in 1969 and 1970, Ken Thompson and Dennis Ritchie began to develop their own single ....

Part II of Essay
.... many universities - most notably UC-Berkeley. This led to some of the variations in UNIX which we see today. After the divestiture of the Bell System, their parent company, AT&T, became much more interested in marketing a commercial version of UNIX. And today we see that many companies have now licensed their own version: AT&T's System V, Versions of System V such as SCO's Xenix and IBM's AIX Berkeley's UNIX (called "BSD" for "Berkeley System Development"), Versions of Berkeley UNIX such as Sun Microsystem's SunOS, DEC's ....

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Words: 276 - Pages: 2


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