Chippewa Operating System

The Chippewa Operating System (COS) is a discontinued operating system developed by Control Data Corporation for the CDC 6600, generally considered the first supercomputer in the world.[1] The Chippewa was initially developed as an experimental system, but was then also deployed on other CDC 6000 machines.[2]

Chippewa Operating System (COS)
CDC 6600 with the system console
DeveloperControl Data Corporation
Working stateDiscontinued
Marketing targetSupercomputers
PlatformsCDC 6600 supercomputer
InfluencedCDC Kronos, CDC SCOPE
LicenseProprietary
Succeeded byCDC SCOPE

The Chippewa was a rather simple job control oriented system derived from the earlier CDC 3000. Its design influenced the later CDC Kronos and SCOPE operating systems.[3][2] Its name was based on the Chippewa Falls research and development center of CDC in Wisconsin.

It is distinct from and preceded the Cray Operating System (also called "COS") at Cray.

See also

Bibliography
  • Peterson, J. B. (1969). "CDC 6600 control cards, Chippewa Operating System" (PDF). Open-File Report. U.S. Dept. of the Interior. doi:10.3133/ofr69203. Archived from the original on March 1, 2017.

References
  1. Impagliazzo, John; Lee, John, eds. (2004). History of Computing in Education. IFIP Advances in Information and Communication Technology. Springer. p. 172. ISBN 1-4020-8135-9.
  2. Thornton, James E. (1970). Design of a Computer: The Control Data 6600. Scott, Foresman and Company. p. 163. ISBN 0-673-05953-7.
  3. Vardalas, John N. (2001). The Computer Revolution in Canada: Building National Technological Competence. History of Computing. The MIT Press. p. 258. ISBN 0-262-22064-4.
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