A/UX
Early Unix-based operating system from Apple Computer / From Wikipedia, the free encyclopedia
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A/UX is a Unix-based operating system from Apple Computer for Macintosh computers, integrated with System 7's graphical interface and application compatibility. It is Apple's first official Unix-based operating system, launched in 1988 and discontinued in 1995 with version 3.1.1.[2] A/UX requires select 68k-based Macintosh models with an FPU and a paged memory management unit (PMMU), including the Macintosh II, SE/30, Quadra, and Centris series.[3]
 A/UX 3.0.1 with Finder, CommandShell, and Netscape | |
| Developer | Apple Computer |
|---|---|
| OS family | |
| Working state | Historic |
| Source model | Closed source |
| Initial release | February 1988[1] |
| Latest release | 3.1.1 / 1995 |
| Kernel type | Monolithic kernel |
| License | Proprietary |
Described by InfoWorld as "an open systems solution with the Macintosh at its heart",[4] A/UX is based on UNIX System V Release 2.2, with features from System V Releases 3 and 4[citation needed] and BSD versions 4.2 and 4.3. It is POSIX- and System V Interface Definition (SVID)-compliant and includes TCP/IP networking since version 2. Having a Unix-compatible, POSIX-compliant operating system enabled Apple to bid for large contracts to supply computers to U.S. federal government institutes.[5][6]