A/UX

A/UX
A/UX 3.0.1 with Finder, CommandShell, and Netscape
DeveloperApple Computer
OS family
Working stateHistoric
Source modelClosed source
Initial releaseFebruary 1988; 36 years ago (1988-02)[1]
Latest release3.1.1 / 1995; 29 years ago (1995)
Kernel typeMonolithic kernel
LicenseProprietary

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]

  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.
  3. ^ "The Open Group official register of UNIX Certified Products". The Open Group. Retrieved October 1, 2017.
  4. ^ Cite error: The named reference InfoWorld August 1992 was invoked but never defined (see the help page).
  5. ^ Betts, Mitch (August 8, 1988). "Uncle Sam Salutes the Mac". Computerworld. Vol. XXII, no. 32. p. 60.
  6. ^ Ryan, Alan J. (August 15, 1988). "Apple keen on Unix future". Computerworld. Vol. XXII, no. 33. p. 6.