OSF/1

OSF/1
DeveloperOpen Software Foundation
OS familyUnix
Working stateDiscontinued
Initial releaseJanuary 1992; 32 years ago (1992-01)
Available inEnglish
PlatformsMIPS, DEC Alpha, PA-RISC
Kernel typeHybrid,[1] Microkernel[2]

OSF/1 is a variant of the Unix operating system developed by the Open Software Foundation during the late 1980s and early 1990s. OSF/1 is one of the first operating systems to have used the Mach kernel developed at Carnegie Mellon University, and is probably best known as the native Unix operating system for DEC Alpha architecture systems.

In 1994, after AT&T had sold UNIX System V to Novell and the rival Unix International consortium had disbanded, the Open Software Foundation ceased funding of research and development of OSF/1. The Tru64 UNIX variant of OSF/1 was supported by HP until 2012.

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  2. ^ Cite error: The named reference byte199401_kernels was invoked but never defined (see the help page).