Xerox Operating System
Operating system / From Wikipedia, the free encyclopedia
The Xerox Operating System (XOS) was an operating system for the XDS Sigma series of computers "optimized for direct replacement of IBM DOS/360 installations" and to provide real-time and timesharing support.[1]
Quick Facts Developer, Working state ...
Developer | CII |
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Working state | Historic |
Platforms | SDS Sigma series |
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The system was developed, beginning in 1969, for Xerox by the French firm CII (now Bull).[2]
XOS was more successful in Europe than in the US, but was unable to compete with IBM. By 1972 there were 35 XOS installations in Europe, compared to 2 in the US.[1]