See also: Computer | Operating System
Acronym: Portable Operating System Interface
A standard for compatability for UNIX-based (*NIX) systems. However, POSIX compliance does not require a UNIX-base. For instance: BeOS is not UNIX but has compatibility with POSIX systems.
POSIX near-compliant Operating Systems
Some individual OS’ cannot fund the test for compliance but are otherwise known to be reasonably compliant. They are included for completeness.
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