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OpenServer AI simulator
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OpenServer
Xinuos OpenServer, previously SCO UNIX and SCO Open Desktop (SCO ODT), is a closed source computer operating system developed by Santa Cruz Operation (SCO), later acquired by SCO Group, and now owned by Xinuos. Early versions of OpenServer were based on UNIX System V, while the later OpenServer 10 is based on FreeBSD 10. However, OpenServer 10 has not received any updates since 2018 and is no longer marketed on Xinuos's website, while OpenServer 5 Definitive and 6 Definitive are still supported.
In 1987 AT&T Corporation, Microsoft, and Sun Microsystems agreed to combine their versions of the Unix operating system. Santa Cruz Operation (SCO) sublicensed Microsoft's Xenix and wanted to retain the Xenix name, but AT&T said "If they want to call it Unix, they've got to use it the way it is. We don't want another set of variants".
SCO UNIX was the successor to Xenix, derived from UNIX System V Release 3.2 with an infusion of Xenix device drivers and utilities. SCO UNIX System V/386 Release 3.2.0 was released in 1989, as the commercial successor to SCO Xenix. The base operating system did not include TCP/IP networking or X Window System graphics; these were available as optional extra-cost add-on packages. Shortly after the release of this bare OS, SCO shipped an integrated product under the name of SCO Open Desktop, or ODT. 1994 saw the release of SCO MPX, an add-on SMP package.
At the same time, AT&T completed its merge of Xenix, BSD, SunOS, and UNIX System V Release 3 features into UNIX System V Release 4. SCO UNIX remained based on System V Release 3, but eventually added home-grown versions of most of the features of Release 4.
The 1992 releases of SCO UNIX 3.2v4.0 and Open Desktop 2.0 added support for long file names and symbolic links. The next major version, OpenServer Release 5.0.0, released in 1995, added support for ELF executables and dynamically linked shared objects, and made many kernel structures dynamic.
SCO OpenServer 5, released in 1995, would become SCO's primary product and serve as the basis for products like PizzaNet (the first Internet-based food delivery system done in partnership with Pizza Hut) and SCO Global Access, an Internet gateway server based on Open Desktop Lite. To compete with Windows NT and Linux, by 1997 SCO was distributing single-user licenses for educational use for $19, the cost of the CD-ROM, or completely free at trade shows. Due to its large installed base, SCO OpenServer 5 continues to be actively maintained by SCO with major updates having occurred as recently as September 2018.
SCO OpenServer 6, based on the merging of Openserver 5 and large portions of Unixware 7 was initially released by The SCO Group in 2005. It includes support for large files, increased memory, and multi-threaded kernel (light-weight processes). This merged codebase is UNIX System V Release 5 (SVR5) of which the original version is seen in Unixware 7; SVR5 is only used by Xinuos. SCO OpenServer 6 contains the UnixWare 7's SVR5 kernel integrated with SCO OpenServer 5 application and binary compatibility, OpenServer 5 system administration, and OpenServer 5 user environments. Unixware 7 was ironically based on a merger of AT&T UNIX System V Release 4.2MP (Unixware 2) and select technologies from OpenServer 5.
SCO OpenServer has primarily been sold into the small and medium business (SMB) market. It is widely used in small offices, point of sale (POS) systems, replicated sites, and backoffice database server deployments. Prominent larger SCO OpenServer customers include McDonald's, Taco Bell, Big O Tires, Pizza Hut, Costco pharmacy, NASDAQ, The Toronto Stock Exchange, Banco do Brasil, many banks in Russia and China, and the railway system of India.
OpenServer
Xinuos OpenServer, previously SCO UNIX and SCO Open Desktop (SCO ODT), is a closed source computer operating system developed by Santa Cruz Operation (SCO), later acquired by SCO Group, and now owned by Xinuos. Early versions of OpenServer were based on UNIX System V, while the later OpenServer 10 is based on FreeBSD 10. However, OpenServer 10 has not received any updates since 2018 and is no longer marketed on Xinuos's website, while OpenServer 5 Definitive and 6 Definitive are still supported.
In 1987 AT&T Corporation, Microsoft, and Sun Microsystems agreed to combine their versions of the Unix operating system. Santa Cruz Operation (SCO) sublicensed Microsoft's Xenix and wanted to retain the Xenix name, but AT&T said "If they want to call it Unix, they've got to use it the way it is. We don't want another set of variants".
SCO UNIX was the successor to Xenix, derived from UNIX System V Release 3.2 with an infusion of Xenix device drivers and utilities. SCO UNIX System V/386 Release 3.2.0 was released in 1989, as the commercial successor to SCO Xenix. The base operating system did not include TCP/IP networking or X Window System graphics; these were available as optional extra-cost add-on packages. Shortly after the release of this bare OS, SCO shipped an integrated product under the name of SCO Open Desktop, or ODT. 1994 saw the release of SCO MPX, an add-on SMP package.
At the same time, AT&T completed its merge of Xenix, BSD, SunOS, and UNIX System V Release 3 features into UNIX System V Release 4. SCO UNIX remained based on System V Release 3, but eventually added home-grown versions of most of the features of Release 4.
The 1992 releases of SCO UNIX 3.2v4.0 and Open Desktop 2.0 added support for long file names and symbolic links. The next major version, OpenServer Release 5.0.0, released in 1995, added support for ELF executables and dynamically linked shared objects, and made many kernel structures dynamic.
SCO OpenServer 5, released in 1995, would become SCO's primary product and serve as the basis for products like PizzaNet (the first Internet-based food delivery system done in partnership with Pizza Hut) and SCO Global Access, an Internet gateway server based on Open Desktop Lite. To compete with Windows NT and Linux, by 1997 SCO was distributing single-user licenses for educational use for $19, the cost of the CD-ROM, or completely free at trade shows. Due to its large installed base, SCO OpenServer 5 continues to be actively maintained by SCO with major updates having occurred as recently as September 2018.
SCO OpenServer 6, based on the merging of Openserver 5 and large portions of Unixware 7 was initially released by The SCO Group in 2005. It includes support for large files, increased memory, and multi-threaded kernel (light-weight processes). This merged codebase is UNIX System V Release 5 (SVR5) of which the original version is seen in Unixware 7; SVR5 is only used by Xinuos. SCO OpenServer 6 contains the UnixWare 7's SVR5 kernel integrated with SCO OpenServer 5 application and binary compatibility, OpenServer 5 system administration, and OpenServer 5 user environments. Unixware 7 was ironically based on a merger of AT&T UNIX System V Release 4.2MP (Unixware 2) and select technologies from OpenServer 5.
SCO OpenServer has primarily been sold into the small and medium business (SMB) market. It is widely used in small offices, point of sale (POS) systems, replicated sites, and backoffice database server deployments. Prominent larger SCO OpenServer customers include McDonald's, Taco Bell, Big O Tires, Pizza Hut, Costco pharmacy, NASDAQ, The Toronto Stock Exchange, Banco do Brasil, many banks in Russia and China, and the railway system of India.
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