Is Tru64 UNIX an open source/free or commercial system? Does it work on 32-bit platform? and what are its features in compare with *BSD & Linux system?

  • 1
    Try en.wikipedia.org/wiki/Tru64_Unix to start with. – user Jan 12 '12 at 8:03
  • 1
    @MichaelKjörling: tried it before, my English is not so good. I did not understand it very well, because of that I came here to ask. – Adban Jan 12 '12 at 8:04
  • Here you get answers in english, so not much different from wikipedia. You can try Google translation services. – enzotib Jan 12 '12 at 8:47
  • 3
    @enzotib: Simple english is better than machine translation. – Adban Jan 12 '12 at 9:00
  • 2
    @Adban: There is a Simple English Wikipedia site. There isn't a Simple English page for Tru64 UNIX, but you might find the site useful in the future. – user26112 Aug 3 '13 at 1:05

It is HP's commercial 64-bit UNIX operating system (based on the Mach kernel - which Mac OS X is also based on)

It is for the Alpha instruction set architecture only - although there was a short lived Intel port.

Broadly speaking, usage is similar to many other *nixes, but the location of various config files, executables etc may be not where you expect.

  • Actually it is one of HP's UNIXes (the other being HP-UX). – user14755 May 16 '17 at 6:39

Tru64 is a commercial Unix system. It wass originally called OSF/1, OSF standing for Open Software Foundation. It is original in that it is neither based on AT&T source code (System V) nor on BSD, the two major Unix flavor. The OSF was led by DEC as an attempt to compete against System V which they felt excluded companies other than AT&T and Sun.

Only DEC made significant use of OSF/1. DEC's OSF/1 was known as Digital Unix (from Digital Equipment Corporation, and it was the operating system shipped with most of DEC's workstations (there was aslo a version of Windows NT for some low-to-mid-end Alphas). first based on MIPS processors (32-bit), then later on Alpha. Because Alphas were at the time the only affordable 64-bit platforms (not as cheap as a PC, but cheaper than “big iron”), and as part of the rebranding of DEC products after Compaq bought DEC in 1998.

In 2002, Hewlett-Packard bought Compaq. HP had its own 64-bit platforms (the traditional PA-RISC, the new high-end Itanium and more recently the cheaper AMD64) and its own Unix brand (HP-UX) plus Linux, so it had no use for either Alpha or OSF/1.

While OSF/1 did have innovative features at the time it was developped, none were licensed for reuse in other systems, as far as I know. Nowadays I think any worthwhile feature has been imitated by others already. HP has not released the OSF/1 intellectual property, except for a version of the AdvFS filesystem.

  • DG was Data General. Definitely not the same as DEC!! Also, HP (or Compaq) licensed Tru64's cluster software to Oracle for db clustering. – RonJohn May 15 '17 at 23:53
  • 1
    Actually, most of the command and utilities were either BSD or AT&T licensed and were ported to the Alpha platform from the Ultrix platform. Some items such as ncurses and nawk were directly licensed from USL. – fpmurphy May 16 '17 at 0:17
  • 1
    It would be more factual to state that only DEC made use of the Mach kernel. Other components of OSF/1 such as CDE, Motif, DCE, and liots more, were used by many companies. – fpmurphy May 16 '17 at 0:24

As per the above Wikipedia article Tru64 UNIX is a commercial system and it works only on the DEC Alpha platform.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.