A/UX

A/UX
	A/UX 3.0.1 with Finder, CommandShell, and Netscape
Developer	Apple Computer
OS family	Macintosh; UNIX System V;
Working state	Historic
Source model	Closed source
Initial release	February 1988
Latest release	3.1.1 / 1995
Kernel type	Monolithic kernel
License	Proprietary

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]

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]

^ Pitta, Julie (February 15, 1988). "A/UX ships following lengthy delay". Computerworld. Vol. XXII, no. 7. p. 133.
^ Flynn, Laurie (March 7, 1988). "Universities High on A/UX But Want More". InfoWorld. Vol. 10, no. 10. p. 31. Retrieved June 19, 2017.
^ "The Open Group official register of UNIX Certified Products". The Open Group. Retrieved October 1, 2017.
^ Cite error: The named reference InfoWorld August 1992 was invoked but never defined (see the help page).
^ Betts, Mitch (August 8, 1988). "Uncle Sam Salutes the Mac". Computerworld. Vol. XXII, no. 32. p. 60.
^ Ryan, Alan J. (August 15, 1988). "Apple keen on Unix future". Computerworld. Vol. XXII, no. 33. p. 6.

[A/UX_ships_following_lengthy_delay-1] Pitta, Julie (February 15, 1988). "A/UX ships following lengthy delay". Computerworld. Vol. XXII, no. 7. p. 133.

[2] Flynn, Laurie (March 7, 1988). "Universities High on A/UX But Want More". InfoWorld. Vol. 10, no. 10. p. 31. Retrieved June 19, 2017.

[openbrand-3] "The Open Group official register of UNIX Certified Products". The Open Group. Retrieved October 1, 2017.

[InfoWorld_August_1992-4] Cite error: The named reference InfoWorld August 1992 was invoked but never defined (see the help page).

[Uncle_Sam-5] Betts, Mitch (August 8, 1988). "Uncle Sam Salutes the Mac". Computerworld. Vol. XXII, no. 32. p. 60.

[Apple_keen_on_Unix_future-6] Ryan, Alan J. (August 15, 1988). "Apple keen on Unix future". Computerworld. Vol. XXII, no. 33. p. 6.

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