Mt Xinu

For the unrelated operating system with a similar name, see Xinu.

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, Inc.

Founded	July 28, 1983; 41 years ago (1983-07-28)[1]
Defunct	June 26, 1995 (1995-06-26)[1]
Fate	dissolved
Headquarters	Berkeley, California , United States

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)

A division of mt Xinu spawned Xinet, which was founded in 1991.^[5]