mt Xinu

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mt Xinu, Inc.
FoundedJuly 28, 1983; 40 years ago (1983-07-28)[1]
DefunctJune 26, 1995 (1995-06-26)[1]

mt Xinu (from the letters in "Unix™", reversed) was a software company founded in 1983 that produced two operating systems. Its slogan "We know Unix™ backwards and forwards" is an allusion to the company's name and abilities.[2][3]

mt Xinu offered several products:

  • mt Xinu was a commercially licensed version of the BSD Unix operating system for the DEC VAX. The initial version was based on 4.1cBSD; later versions were based on 4.2 and 4.3BSD.
  • more/BSD is mt Xinu's version of 4.3BSD-Tahoe for VAX and HP 9000, incorporating code from the University of Utah's HPBSD. It includes NFS.
  • Mach386 is a hybrid of Mach 2.5/2.6 and 4.3BSD-Tahoe/Reno for 386 and 486-based IBM PC compatibles.

mt Xinu produced interoperability software for Macintosh and Unix, including an AppleShare server for Unix.[4]

The company's principals were University of California, Berkeley computer science students and graduates, including Bob Kridle, Alan Tobey, Ed Gould, and Vance Vaughan. Debbie Scherrer was a later contributor.

mt Xinu made light-hearted Unix-themed calendars, including:

  • Command of the Month (1987–1988)
  • Lessons in Art (1989)
  • Platform of the Year (1990)

In 1991, a division of mt Xinu spawned Xinet.


  1. ^ a b California Business Search results for Mt Xinu (Entity Number C1148179).
  2. ^ Salus 1994
  3. ^ Savage, J. A. (August 14, 1989). "Mt. Xinu aims for big firm's bucks, small firm's freedom". Computerworld. Vol. XXIII, no. 33. CW Communications. p. 80 – via Google Books.
  4. ^ "Mt Xinu ships Appleshare for HP workstations. InfoWorld, 10 September 1990, p. 51.