The Chippewa Operating System, known as COS, is a discontinued operating system developed by Control Data Corporation in 1964 for the CDC 6600, a machine generally considered the world's first supercomputer. It began as an experimental system before also being deployed on other machines in the CDC 6000 series. The Chippewa was a relatively simple, job-control oriented system derived from the earlier CDC 3000 operating system, and its design went on to influence CDC's later Kronos and SCOPE operating systems. Its name comes from Control Data's research and development center in Chippewa Falls, Wisconsin. It is a distinct, earlier system from the similarly abbreviated Cray Operating System, also called COS, built later at Cray.
Facts
SignificanceDeveloped for the CDC 6600, a machine generally considered the world's first supercomputer. 1 Classification
LicenseProprietary (Closed Source) 1 Connections
Licensed Under
Entity-backed identity for the license enum value this item already carries, resolved to a software license concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The license fact itself stays on the item unchanged.
Sources
1. Chippewa Operating System (Wikipedia)
Infobox, Initial Release Year
1964
Infobox, License
Proprietary
Infobox, Working State
Discontinued
Lead paragraph
developed by Control Data Corporation in 1964 for the CDC 6600, generally considered the first supercomputer in the world
- In Group: Mainframe and Historical Systems, developed by Control Data Corporation in 1964 for the CDC 6600
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