What Is SCO UNIX?
SCO UNIX was a variant of the UNIX operating system for IBM-compatible computers developed by Santa Cruz Operation (SCO). SCO Unix is Unix-based AT & T System V Release 3.2 with the inclusion of driver and utilities found in Xenix, which is evolution. SCO subsequently added the most features of System V Release 4.
The first version, SCO UNIX System V/386 Release 3.2.0, was released in 1989 and, like its predecessor Xenix, did not include support for TCP / IP or X Window System X Window System. These were only available by purchasing the package OpenDesktop.
In 1995 SCO acquired from Novell’s Unix source code of AT & T, becoming the co-owner of all royalties on Unix. SCO has also acquired the UnixWare operating system, simultaneously changing the name of SCO Unix SCO OpenServer 5. This version was added support for ELF executables and dynamic shared libraries.
In August 2000, SCO announced the sale of its software and services divisions, and UnixWare and OpenServer systems to Caldera Systems, which in 2002 changed its name to “The SCO Group.
The SCO Group has also continued to develop OpenServer, and is currently at version 6, which maintains compatibility for applications developed for Xenix 286 et seq.
SCO UNIX – Legal issues
Perhaps because of confusion created by the continuous supply of the rights to Unix in 2004 The SCO Group has sued Novell for having been a number of Unix copyrights to SCO already registered previously.
In 2007 a U.S. court in SCO v. Novell case, ruled instead that Novell holds the copyright to the Unix and UnixWare Code developed before 1995. The final ruling dates back to November 2008 and confirms the previous opinion of the court, alleging that The SCO Group has more than $ 3.5 million to Novell for unjust enrichment.
XENIX was a UNIX operating system developed by Microsoft. Microsoft has so called because it was not licensed to use the name “UNIX”. In 1979, Microsoft bought a license for version 7 of UNIX from AT & T and announced August 25, 1980 his intention to make it available for 16-bit processors.
XENIX was not sold directly to end users, and Microsoft sold a license to PC manufacturers who wanted to wear it on their systems. The first port of XENIX was a Zilog Z8001 features a 16-bit.
The XENIX licenses sold:
Several companies have licensed day XENIX. These include:
• Altos sold a version for their computers at the beginning of 1982;
• Tandy Corporation, which sold one for their computers based on the 68000 in January 1983;
• Santa Cruz Operation (SCO) distributed a port for Intel 8086 in September 1983, and also a port for 68000 The Apple Lisa 2, 1984.
Microsoft gives to SCO XENIX
Microsoft XENIX abandoned when he signed an agreement to develop jointly with IBM operating system OS / 2. In an agreement with SCO in 1987, Microsoft sold him his rights to XENIX in exchange for 25% of SCO.
Distributed version of SCO UNIX System V was later called SCO XENIX System V for the Intel 80286 in 1985. This release will be followed in 1987 with a port for the Intel 80386, developed up to version 2.3.4 released in 1991.
In 1988, due to the share market that was the product of some XENIX was incorporated in System V Release 3.2, this version of System V will then serve as the basis for SCO UNIX, released in 1989 and later became Open Desktop SCO (SCO ODT) and SCO OpenServer.
Study: From Wikipedia, the free encyclopedia. The text is available under the Creative Commons.
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