| Developer | Carnegie-Mellon University |
|---|---|
| Written in | BLISS |
| OS family | Capability-based |
| Working state | Discontinued |
| Initial release | 1971 |
| Final release | Final / 1975 |
| Marketing target | Research |
| Available in | English |
| Update method | Compile from source code |
| Kernel type | Microkernel |
| Default user interface | Command-line interface |
Hydra (stylized as HYDRA) is an early, discontinued, capability-based, object-oriented microkernel designed to support a wide range of possible operating systems to run on it.[1] Hydra was created as part of the C.mmp project at Carnegie-Mellon University in 1971.[2]
The name is based on the ancient Greek mythological creature the hydra.
Hydra was designed to be modular and secure, and intended to be flexible enough for easy experimentation.[3] The system was implemented in the programming language BLISS.[4]
References
- ↑ Wulf 74 pp. 337–345
- ↑ Siewiorek, Daniel P.; Bell, C. Gordon; Newell, Allen; Mashburn, Henry M. (1982). Computer Structures: Principles and Examples. New York, New York: McGraw-Hill.
- ↑ Levy, Henry M. (1984). Capability-Based Computer Systems (PDF). Digital Press.
- ↑ Wulf, William A.; Harbison, Samual P. Reflections in a pool of processors: An experience report on C.mmp/Hydra (PDF) (Report). p. 945.
- Levin, R.; Cohen, E.; Corwin, W.; Pollack, F.; Wulf, William (November 1, 1975). "Policy/mechanism separation in Hydra". Proceedings of the fifth ACM symposium on operating systems principles. pp. 132–140. doi:10.1145/800213.806531. S2CID 10524544.
- Wulf, William; Cohen, E.; Corwin, W.; Jones, A.; Levin, R.; Pierson, C.; Pollack, F. (June 1974). Hydra: The Kernel of a Multiprocessor Operating System. Vol. 17. pp. 337–345. doi:10.1145/355616.364017. S2CID 8011765. Archived (PDF) from the original on July 1, 2007.
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