page_title: SGI Indigo
hierarchical_section_title: SGI Indigo
caption_attribution_description: English: SGI Indigo workstation, back view. From the collection of the RCS/RI.
context_page_description: The Indigo, introduced as the IRIS Indigo, is a line of workstation computers developed and manufactured by Silicon Graphics, Inc. SGI first announced the system in July 1991.
  The Indigo is considered one of the most capable graphics workstations of its era, and was essentially peerless in the realm of hardware-accelerated three-dimensional graphics rendering. For use as a graphics workstation, the Indigo was equipped with a two-dimensional framebuffer or, for use as a 3D graphics workstation, with the Elan graphics subsystem including one to four Geometry Engines. SGI sold a server version with no video adapter.
  The Indigo's design is based on a simple cube motif in indigo hue. Graphics and other peripheral expansions are accomplished via the GIO32 expansion bus.
  The Indigo was superseded generally by the SGI Indigo2, and in the low-cost market segment by the SGI Indy.
context_section_description: The Indigo, introduced as the IRIS Indigo, is a line of workstation computers developed and manufactured by Silicon Graphics, Inc. (SGI).  SGI first announced the system in July 1991.
  The Indigo is considered one of the most capable graphics workstations of its era, and was essentially peerless in the realm of hardware-accelerated three-dimensional graphics rendering.  For use as a graphics workstation, the Indigo was equipped with a two-dimensional framebuffer or, for use as a 3D graphics workstation, with the Elan graphics subsystem including one to four Geometry Engines (GEs).  SGI sold a server version with no video adapter.
  The Indigo's design is based on a simple cube motif in indigo hue. Graphics and other peripheral expansions are accomplished via the GIO32 expansion bus.
  The Indigo was superseded generally by the SGI Indigo2, and in the low-cost market segment by the SGI Indy.
caption: SGI Indigo, back
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