UNIX

(redirected from POSIX)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.
Related to POSIX: POSIX Threads

UNIX

Informatics A versatile, non-proprietary open operating system, which is the industry standard for mainframes, work stations and servers on the Internet, written in C programming language. See OS X. Cf MacOS, Windows.
References in periodicals archive ?
Alongside this development, the AT&T version of UNIX became the basis for a different standard, the System V Interface Definition ("SVID"), which attempted to standardize a set of functions similar but not identical to the /usr/group and POSIX standards.
We begin with the standard UNIX (POSIX) I/O interface, and go on to more aggressively optimized I/O systems proposed in the literature.
The LynxOS real-time operating system was selected for the IDM upgrade program because it uniquely supported open systems standards such as IEEE 1003.1 (POSIX), and BSD 4.4 socket network interfaces.
NetFORCE also boasts a Customized Posix Compliant Operating System.
This is the rule mandated by the POSIX standard [IEEE 1992] and used in many software tools [Hargreaves and Berry 1992; Ousterhout 1994; Wall and Schwartz 1991].
To accomplish this, we collect objects and subjects into classes;(2) in fact, collecting subjects into groups is done in many access list schemes and is essential for POSIX compliance, as this security standard externalizes the concept of user groups [ISO 1991].
The history of POSIX, the dilemmas of intellectual property rights, the present and future of object technology, and the destiny of standardization were addressed in volume 3.
She has worked on such products as DECwindows Motif, POSIX Threads, and Fortran.
POSIX (Portable Operating System Interfaces) standardizes programming access to the operating system.
"Digital's commitment to support Windows NT, OSF/1 and Open VMS on its new Alpha AXP line of computers, along with Microsoft's commitment to automation standards such as POSIX, makes Windows NT an extremely attractive option for the Data Research workstation product," said Michael J.
On the other hand, POSIX is an open standard since any company can write to it.