 | This article needs additional citations for verification. (August 2011) |
| Developer | Control Data Corporation |
|---|---|
| Working state | Historic |
| Initial release | 1971 |
| Latest release | Kronos level 439 |
| Marketing target | Mainframe computers |
| Platforms | CDC 6000 series and successors |
| Influenced by | Chippewa Operating System |
| License | Proprietary |
Kronos is an operating system with time-sharing capabilities, written by Control Data Corporation in 1971.[1] Kronos ran on the 60-bit CDC 6000 series mainframe computers and their successors. CDC replaced Kronos with the NOS operating system in the late 1970s, which were succeeded by the NOS/VE operating system in the mid-1980s.[2][3]
The MACE operating system and APEX were forerunners to KRONOS. It was written by Control Data systems programmer Greg Mansfield, Dave Cahlander, Bob Tate and three others.
- ^ "CDC Operating System History Mar76" (PDF). Control Data Corporation. Retrieved 7 March 2023.
- ^ "Kronos 2.1 Time-Sharing User's Reference Manual" (PDF). Control Data Corporation. Retrieved 25 July 2011.
- ^ Lindsay, David S. (1976-03-29). "A hardware monitor study of a CDC KRONOS system". Proceedings of the 1976 ACM SIGMETRICS conference on Computer performance modeling measurement and evaluation - SIGMETRICS '76. SIGMETRICS '76. New York, NY, USA: Association for Computing Machinery. pp. 136–144. doi:10.1145/800200.806190. ISBN 978-1-4503-7497-2. S2CID 18828764.