Mt 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" was an allusion to the company's name and abilities.
mt Xinu offered several products:
Apart from operating systems, mt Xinu also produced Apple-Unix interoperability software, including an AppleShare server for Unix.
The company's principals were University of California, Berkeley computer science students and graduates, notably Bob Kridle, Alan Tobey, Ed Gould, and Vance Vaughan. Debbie Scherrer was a later contributor.
mt Xinu is also famous for its light-hearted Unix-themed calendars, including:
In 1991 a division of mt Xinu broke off to become Xinet.