Silicon Graphics Crimson
SGI Crimson logo.jpg
Also known asSGI IRIS 4D Crimson
Type3D Graphics workstation
Release date1992
PredecessorSGI IRIS 4D POWER series
SuccessorSGI Onyx

The IRIS Crimson (code-named Diehard2) is a Silicon Graphics (SGI) computer released in 1992. It is the world's first 64-bit workstation.

Crimson is a member of Silicon Graphics's SGI IRIS 4D series of deskside systems; it is also known as the 4D/510 workstation. It is similar to other SGI IRIS 4D deskside workstations, and can use a wide range of graphics options (up to RealityEngine). It is also available as a file server with no graphics.

This machine makes a brief appearance in the movie Jurassic Park (1993) where Lex uses the machine to navigate the IRIX filesystem in 3D using the application fsn to restore power to the compound. The next year, Silicon Graphics released a rebadged, limited edition Crimson R4400/VGXT called the Jurassic Classic, with a special logo and SGI co-founder James H. Clark's signature on the drive door.


Crimson memory is unique to this model.

SGI timeline

SGI PrismSGI Origin 3000 and Onyx 3000Origin 2000SGI ChallengeOnyx 300Onyx 2SGI OnyxSGI CrimsonSGI AltixSGI Origin 200SGI Indigo² and Challenge MSGI TezroSGI Octane2SGI OctaneSGI Indigo² and Challenge MSGI IRIS 4DSGI FuelSGI IndigoSGI IRIS 4DSGI O2SGI O2SGI IndySGI IRIS 4DSGI IRISSGI IRISSGI IRISVisual WorkstationSGI IRISSGI IRIS


  1. ^ " : Hardware : Systems : Crimson". Retrieved 2021-07-01.
Preceded bySGI IRIS 4D Power Series SGI IRIS 4D Crimson 1992 - 1997 Succeeded bySGI Onyx