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Networking The Complete Reference, Third Edition by Bobbi Sandberg

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CHAPTER

20 Unix

Unix is a multiuser, multitasking operating system (OS) with roots that date back to the late 1960s. It was developed throughout the 1970s by researchers at AT&T’s Bell Labs, finally culminating in Unix System V Release 1 in 1983. During this time, and since then, many other organizations have built their own variants on the Unix formula, and now dozens of different operating systems function using the same basic Unix components, including both Apple and Linux. This was possible because, from the beginning, Unix has been more of a collaborative research project than a commercial product. While some companies guard the source code to their operating systems, many Unix developers make their code freely available. This enables ...

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