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irix [2019/01/28 21:38]
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irix [2019/01/28 22:14] (current)
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-====IRIX====+=====IRIX=====
 **IRIX** is a System V based UNIX operating system developed by Silicon Graphics, Inc. (SGI) to run natively on their MIPS workstations and servers. It takes the basis of System V, adds BSD and proprietary extensions. IRIX is the operating system on which many innovations were pioneered and later ported to other operating systems, including OpenGL, the XFS filesystem, and GLX extensions. **IRIX** is a System V based UNIX operating system developed by Silicon Graphics, Inc. (SGI) to run natively on their MIPS workstations and servers. It takes the basis of System V, adds BSD and proprietary extensions. IRIX is the operating system on which many innovations were pioneered and later ported to other operating systems, including OpenGL, the XFS filesystem, and GLX extensions.
  
 The last major version of IRIX was IRIX 6.5, released in May 1998. New minor versions of IRIX 6.5 were released every quarter until 2005; since then there have been four further minor releases. Through version 6.5.22, there were two branches of each release: a maintenance release (identified by an m suffix to the version number) that included only fixes to the original IRIX 6.5 code, and a feature release (with an f suffix) that included improvements and enhancements. An overlay upgrade for prior versions (6.5.1-21) was made available free of charge. 6.5.23 - 6.5.30 required an active support contract with SGI, which is no longer available due to Silicon Graphics International'​s acquisition by HP Enterprise. Security patches and hotfixes were available through December 2013 when the last SGI support contracts expired. The last major version of IRIX was IRIX 6.5, released in May 1998. New minor versions of IRIX 6.5 were released every quarter until 2005; since then there have been four further minor releases. Through version 6.5.22, there were two branches of each release: a maintenance release (identified by an m suffix to the version number) that included only fixes to the original IRIX 6.5 code, and a feature release (with an f suffix) that included improvements and enhancements. An overlay upgrade for prior versions (6.5.1-21) was made available free of charge. 6.5.23 - 6.5.30 required an active support contract with SGI, which is no longer available due to Silicon Graphics International'​s acquisition by HP Enterprise. Security patches and hotfixes were available through December 2013 when the last SGI support contracts expired.
  
-==History==+====History====
 The IRIX name was first used around the time of release 3.0 of the operating system for SGI's IRIS 4D series of workstations and servers, in 1988. Previous releases were identified only by the release number prefixed by "​4D1-",​ e.g. "​4D1-2.2"​. The 4D1- prefix continued to be used in official documentation to prefix IRIX release numbers. The IRIX name was first used around the time of release 3.0 of the operating system for SGI's IRIS 4D series of workstations and servers, in 1988. Previous releases were identified only by the release number prefixed by "​4D1-",​ e.g. "​4D1-2.2"​. The 4D1- prefix continued to be used in official documentation to prefix IRIX release numbers.
  
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 Since around 2001 SGI had been moving its efforts to Linux and Microsoft Windows but MIPS/IRIX customers had forced it to continue to support that platform through 2006. On September 6 of that year, an SGI press release heralded the end of the MIPS/IRIX product line. Production ended on December 29, 2006, with last deliveries in March 2007, except by special arrangement. Support for these products ended in December 2013 and they will receive no further updates. Since around 2001 SGI had been moving its efforts to Linux and Microsoft Windows but MIPS/IRIX customers had forced it to continue to support that platform through 2006. On September 6 of that year, an SGI press release heralded the end of the MIPS/IRIX product line. Production ended on December 29, 2006, with last deliveries in March 2007, except by special arrangement. Support for these products ended in December 2013 and they will receive no further updates.
  
-==Features==+====Features====
 IRIX 6.5.x is compliant with UNIX System V Release 4, UNIX 95 and POSIX (including 1e/2c draft 15 Access Control Lists and Capabilities). IRIX 6.5.x is compliant with UNIX System V Release 4, UNIX 95 and POSIX (including 1e/2c draft 15 Access Control Lists and Capabilities).
  
irix.txt ยท Last modified: 2019/01/28 22:14 by raion