Other Capability Operating Systems

Systems from which Keykos took ideas: We should have known about Dennis & vanHorn on the PDP-1 but didn’t.

Subsequent systems

Peter Hendrickson sends email with these clues about recent (2017) systems.

A Hydra book: William Allan Wulf, Hydra C.mmp: An Experimental Computer System, McGraw Hill,
June 1981 ISBN: 0070721203
Hydra clue.

The following book describes several capability oriented hardware systems and their software.

Henry M. Levy, Capability Based Computer Systems, Digital Press, 1984.

Juicy History of Windows