However, several major versions of Unix existed-so there was a need to develop a common-denominator system. Unix was selected as the basis for a standard system interface partly because it was "manufacturer-neutral". The committee found it more easily pronounceable and memorable, and thus adopted it. Richard Stallman suggested the name POSIX to the IEEE instead of former IEEE-IX. The standards emerged from a project that began in 1984 building on work from related activity in the /usr/group association. The family of POSIX standards is formally designated as IEEE 1003 and the ISO/IEC standard number is ISO/ IEC 9945. Originally, the name "POSIX" referred to IEEE Std 1003.1-1988, released in 1988. POSIX is intended to be used by both application and system developers. POSIX defines both the system and user-level application programming interfaces (APIs), along with command line shells and utility interfaces, for software compatibility (portability) with variants of Unix and other operating systems. ɪ k s/ ) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. The Portable Operating System Interface ( POSIX IPA: / ˈ p ɒ z. Portable Operating System Interface (IEEE 1003) AbbreviationĪustin Group ( IEEE Computer Society, The Open Group, ISO/IEC JTC 1/SC 22/WG 15) Not to be confused with Unix, Unix-like, or Linux.
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