Welcome to the Cray History site where the entire timeline of supercomputers that carried the Cray name are represented.
From Cray-1 to Cray-T3E and beyond, the complex history of these premier supercomputers is explored. Join in and contribute to the archive with recollections, photographs and information.
** Big thanks to Jim Masocco for his recollection of Seymour Cray Stories, interview film with Seymour Cray and other contributions to this site.
Explore the family tree of Cray systems with specifications, documents and pictures.
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Help us build out this historical archive with corrections, photos, documents and contributions. Contact us here.
Know of any Cray Supercomputer systems ? Check and correct the Historical Systems and Customer Locations Listings.
Go see a Historic Cray system on display at one of these locations.
Seymour Cray at 100 Events 28 Sept 2025
Clive did an in-person and on-line talk on what would have been Seymour Cray’s 100th Birthday. The talk and after party was held at The National Museum of Computing in Bletchley Park UK.
CFMIT in Chippewa Falls and Chippewa Area History Centre had events, later the same day.
What was it like building early Cray systems ?
Read this personal account by Sonja Gardener of her time assembling early Cray supercomputer systems.
What was it like servicing and repairing Cray systems ?
Read this personal account by Charlie Clark of his time as field engineering manager at Cray.
Read these accounts by Jim Masocco of various service issues.
Early in March 2023 had a couple of days at the Computer Museum of America in Atlanta. Took the opportunity to wander round and make some mini-videos of some of the Cray Supercomputer exhibits. See the collection here.
Thanks to Lonnie and David Laufer Creative director at CMoA for the titles and opportunity.
Research the Cray Channels magazine, the premier source for information about Cray Research systems, customers and applications. Review extracts of the Cray Chips Newsletter and information about other newsletters here.
Please contact the site directly if you are interested in obtaining a print ready version of any of the artworks on this website.
The information on this site has been derived from multiple sources including personal recollections and collections.
Contact Us with contributions/ corrections/ submissions/ questions/ stories/ photos.
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