Hydra (operating system)

HYDRA was an early capability-based, object-oriented, microkernel designed to support a wide range of possible operating systems to run on top of it.^[1] HYDRA was created as part of the C.mmp project at Carnegie-Mellon University in 1971.^[2]

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

1. ↑ Wulf 74 pp.337-345
2. ↑ Siewiorek, Daniel P.; Bell, C. Gordon; Newell, Allen; Mashburn, Henry M. (1982), Computer Structures: Principles and Examples, New York, NY: McGraw-Hill 
3. ↑ Levy, Henry M. (1984), Capability-Based Computer Systems, Digital Press 
4. ↑ Wulf, William A.; Harbison, Samual P. "Reflections in a pool of processors - An experience report on C.mmp/Hydra". p. 945. 

• R Levin, E Cohen, W Corwin, F Pollack, William Wulf (1975) Policy/mechanism separation in Hydra Proceedings of the fifth ACM symposium on Operating systems principles Pages: 132 - 140
• William Wulf, E Cohen, W Corwin, A Jones, R Levin C. Pierson, F. Pollack (1974) HYDRA: The Kernel of a Multiprocessor Operating System Volume 17, Issue 6 (June 1974) pp. 337 – 345