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POSIX (Portable Operating System Interface) is a set of IEEE standards designed to provide application portability between Unix variants.

Definition

IEEE 1003.1, first published on August 22, 1988, defined a Unix-like operating system interface. This standard has been updated as IEEE 1003.2 defined the shell and utilities, and IEEE 1003.4 defined real-time extensions.[1]

Etymology

According to More UNIX For Dummies the acronym was created from "Portable Operating System Interface with an X thrown in to make it sound cooler."[2]

References

  1. ↑ Portable Operating System Interface at the Free On-Line Dictionary Of Computing. 1997-12-04.
  2. ↑ John R. Levine, Margaret Levine Young (1995). More UNIX For Dummies. IDG Books Worldwide (ISBN:1-56884-361-5).

External links

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