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Unix (/ ˈ j uː n ɪ k s / ⓘ, YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 [1] at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. [4]
Unix workstations of the 1990s, including those made by DEC, HP, SGI, and Sun The Common Desktop Environment (CDE) was widely used on Unix workstations. The Unix wars continued into the 1990s, but turned out to be less of a threat than originally thought: AT&T and Sun went their own ways after System V.4, while OSF/1's schedule slipped behind. [46]
The Wollongong Group, Inc. (TWG), was one of the first companies to sell commercial software products based on the Unix operating system. [1] It was founded to market a port of Unix Version 6 developed by researchers at the University of Wollongong, Australia (thus the name "Wollongong Group").
It is a free software product and is distributed with most Unix and Linux platforms, where it is most often also referred to as named (name daemon). It is the most widely deployed DNS server. [1] Historically, BIND underwent three major revisions, each with significantly different architectures: BIND4, BIND8, and BIND9.
Below are other certified Unix operating systems: [4] macOS: Heavily based on BSD, macOS is registered as certified Unix 03 brand on both versions (Intel and Apple silicon-based). SCO OpenServer: Another operating system by SCO. Registered as Unix 93 “single and Multi-processor Industry Standard Intel architecture platform”.
The unusual situation whereby Linux kernel development involved the use by some of proprietary software "came to a head" when Andrew Tridgell started to reverse-engineer BitKeeper with the aim of producing an open-source tool which could provide some of the same functionality as the commercial version. BitMover, the company that developed ...
A Unix architecture is a computer operating system system architecture that embodies the Unix philosophy. It may adhere to standards such as the Single UNIX Specification (SUS) or similar POSIX IEEE standard. No single published standard describes all Unix architecture computer operating systems — this is in part a legacy of the Unix wars.
In the mid-1980s, the three common versions of Unix were AT&T's System III, the basis of Microsoft's Xenix and the IBM-endorsed PC/IX, among others; AT&T's System V, which it sought to establish as the new Unix standard; [2] and the Berkeley Software Distribution (BSD). All were derived from AT&T's Research Unix but had diverged considerably ...