Naval Postgraduate School
Principles for Reliable Operating Systems
needham.pdf (104.6Kb)Abstract
Back in the summer of 1975, Dorothy Denning and I, then still newlyweds, spent
a month at Cambridge. During that time Roger Needham and I met daily to
discuss topics in the design of operating systems. We were searching for
fundamental principles for reliable systems. One fruit of those discussions was
my paper, “Fault tolerant operating systems,” in ACM Computing Surveys,
December 1976. Two topics of our discussions have stuck in my mind for all
these years because the principles were sound and relevant to real systems. They
are interrupts and capability addressing.
Description
Peter J. Denning reminisces about joint work in 1975 with Roger Needham on design principles for reliable operating systems. He recounts vivid memories of two findings, about interrupts and about capability addressing. These principles are still valid a quarter century later and remain in wide use.
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