SGI Onyx2

The SGI Onyx2, code name Kego, was a family of visualization systems developed and manufactured by SGI, introduced in 1996 to succeed the Onyx. The Onyx2's basic system architecture is based on the Origin 2000 servers, but with the inclusion of graphics hardware. In 2000, the Onyx2 was succeeded by the Onyx 3000, and it was discontinued on 27 June 2003. These systems ran either IRIX 6.4 or 6.5.

Models

Microprocessor

The Onyx2 used the MIPS R10000 microprocessor clocked at 150, 175, 180 and 195 MHz, later increased to 250 MHz, courtesy of a process shrink from 0.35 to 0.25 micrometers. Later 300 and 400 MHz R12000, and 500 MHz R14000 CPUs were made available.

Graphics subsystem

At the time of their introduction, the Onyx2 could be configured with the Reality, InfiniteReality or InfiniteReality2 graphics subsystems. Later, the InfiniteReality2E was made available and then the InfiniteReality3, in April 2000.

References

Silicon Graphics Image

Silicon Graphics Image (SGI) or the RGB file format is the native raster graphics file format for Silicon Graphics workstations. The format was invented by Paul Haeberli. It can be run-length encoded (RLE). Among others FFmpeg and ImageMagick support this format.

Background

Common file extensions are:

This format was originally developed for IRIX. The master files of the SVT High Definition Multi Format Test Set are SGIs. Frame 200 of the ParkJoy sequence in this set (15722.sgi, 3840×2160, 47.4 MB) was used in WebP comparisons.

See also

References

SGI

SGI may refer to:

SGI Origin 2000

The SGI Origin 2000 was a family of mid-range and high-end server computers developed and manufactured by Silicon Graphics (SGI). They were introduced in 1996 to succeed the SGI Challenge and POWER Challenge. At the time of introduction, these ran the IRIX operating system, originally version 6.4 and later, 6.5. A variant of the Origin 2000 with graphics capability is known as the Onyx2. An entry-level variant based on the same architecture but with a different hardware implementation is known as the Origin 200. The Origin 2000 was succeeded by the Origin 3000 in July 2000, and was discontinued on June 30, 2002.

Models

The family was announced on October 7, 1996. The project was code named Lego, and also known as SN0, to indicate the first in a series of scalable node architectures, contrasting with previous symmetric multiprocessor architectures in the SGI Challenge series.

The Origin 2100 is mostly the same as the other models except that it is not upgradeable to other models. (unless the router cards, etc. were replaced)