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To: Lambo who wrote (25838)	8/5/1999 9:20:00 PM
From: Robert Salasidis	Read Replies (1) \| Respond to of 213187

There are several levels of POSIX compliance. In general it means that the OS has an API that contains at the least those that are required in the POSIX specification. Some of the specs required include things like process creation (environment in general), file handling, i/o, interprocess communication, environment variables (etc), + many other specs. It is not OS dependendent such that UNIX or any other OS can achieve POSIX compliance. The genral idea is that it makes programs easier to port - and the user interface becomes the only part of the program that is unique between OSs. The books describing the POSIZ standard can be ordered from IEEE - POSIX 1003.1 some of the POSIX standards include POSIX.1 - basic OS interfaces POSIX.2 - command line commands POSIX.3 - test methods POSIX.4 - real time extensions and so on