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===First generation products===
 
===First generation products===
The first '''IRIS 1000'''-series machines (''IRIS'' standing for "Integrated Raster Imaging System") were designed to be connected to a DEC VAX computer as a graphics terminal, handling only the actual display. These were based on the Motorola 68000 microprocessor, with a motherboard design related to that of the Sun-1. After that, SGI began using the UNIX System V operating system to power the machine. Their height was reached with the '''IRIS 3130''', a complete UNIX workstation using the Motorola 68020 with an attached Weitek math coprocessor.
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The first '''IRIS 1000'''-series machines (''IRIS'' standing for "Integrated Raster Imaging System") were designed to be connected to a DEC VAX computer as a graphics terminal, handling only the actual display. These were based on the [[Motorola 68000]] microprocessor, with a motherboard design related to that of the Sun-1. After that, SGI began using the UNIX System V operating system to power the machine. Their height was reached with the '''IRIS 3130''', a complete UNIX workstation using the [[Motorola 68020]] with an attached Weitek math coprocessor.
    
The 3130 was powerful enough to support a complete 3D animation and rendering package on its own without mainframe support. With large capacity hard drives (300MB X 2), streaming tape and Ethernet, it could be the centerpiece of an animation operation.
 
The 3130 was powerful enough to support a complete 3D animation and rendering package on its own without mainframe support. With large capacity hard drives (300MB X 2), streaming tape and Ethernet, it could be the centerpiece of an animation operation.
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In 1995, SGI purchased Alias Research and Wavefront Technologies and merged the companies into Alias|Wavefront, now known as Alias Systems Corporation. Later, in June 2004, SGI sold Alias to the private equity investment firm Accel-KKR for $57.1 million. On October 4, 2005, Autodesk, Inc. (NASDAQ: ADSK) announced that it signed a definitive agreement to acquire Alias for $182 million in cash.
 
In 1995, SGI purchased Alias Research and Wavefront Technologies and merged the companies into Alias|Wavefront, now known as Alias Systems Corporation. Later, in June 2004, SGI sold Alias to the private equity investment firm Accel-KKR for $57.1 million. On October 4, 2005, Autodesk, Inc. (NASDAQ: ADSK) announced that it signed a definitive agreement to acquire Alias for $182 million in cash.
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In February 1996, SGI purchased the well-known supercomputer manufacturer Cray Research for $740 million[http://www.forbes.com/2000/03/03/mu4.html], and began to use marketing names such as "CrayLink" for (SGI-developed) technology integrated into the SGI server line. Three months later, it sold the SPARC/Solaris part of the Cray business to Sun Microsystems for an undisclosed amount (widely assumed to be $50 million).  SGI sold most of the remaining Cray business and the Cray brand to Tera Computer Company on March 31, 2000 for $35 million plus one million shares[http://www.bizjournals.com/seattle/stories/2002/11/18/focus2.html]. SGI also distributed its remaining interest in [[MIPS Technologies]] through a spin-off effective June 20, 2000.
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In February 1996, SGI purchased the well-known supercomputer manufacturer [[Cray Research]] for $740 million[http://www.forbes.com/2000/03/03/mu4.html], and began to use marketing names such as "CrayLink" for (SGI-developed) technology integrated into the SGI server line. Three months later, it sold the SPARC/Solaris part of the Cray business to [[Sun Microsystems]] for an undisclosed amount (widely assumed to be $50 million).  SGI sold most of the remaining Cray business and the Cray brand to Tera Computer Company on March 31, 2000 for $35 million plus one million shares[http://www.bizjournals.com/seattle/stories/2002/11/18/focus2.html]. SGI also distributed its remaining interest in [[MIPS Technologies]] through a spin-off effective June 20, 2000.
    
In September 2000, SGI acquired the Zx10 series of Windows workstations and servers from Intergraph Computer Systems. These models were rebadged as SGI systems, but discontinued in June 2001.
 
In September 2000, SGI acquired the Zx10 series of Windows workstations and servers from Intergraph Computer Systems. These models were rebadged as SGI systems, but discontinued in June 2001.
    
===Late 1990s and recent developments===
 
===Late 1990s and recent developments===
Another attempt by SGI in the late 1990s to introduce its own family of Intel-based workstations running Windows NT (see also [[SGI Visual Workstation]]) proved to be a financial disaster, and shook customer confidence in SGI's commitment to its own MIPS-based line.
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Another attempt by SGI in the late 1990s to introduce its own family of Intel-based workstations running Windows NT (see also [[SGI Visual Workstation]]) proved to be a financial disaster, and shook customer confidence in SGI's commitment to its own [[MIPS]]-based line.
    
SGI has also been a big booster of Free Software, supporting several projects (such as Linux and Samba) and providing some previously proprietary code (such as [[XFS]]) to the free software world.
 
SGI has also been a big booster of Free Software, supporting several projects (such as Linux and Samba) and providing some previously proprietary code (such as [[XFS]]) to the free software world.

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