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Where Did UNIX Come From And Why Are There Different Versions Of UNIX?
Part one of term paper
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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-user, multi-tasking small operating
system and they chose the name UN ...
Part two of term paper
... did not run on
any machine made by Bell!)
In 1973, Dennis Ritchie rewrote the UNIX operating system in C (a language he
had developed.) And in 1975, the portability of the C programming language was
used to "port" UNIX to a wide variety of hardware platforms. For legal reasons,
Bell Labs was not able to market UNIX in the 1970's, though they did share this
operating system with many universities - most notably UC-Berkeley. This led to
some of the variations in UNIX which we see today. Afte ...
Word count: 276 | Approximate pages: 2
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