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Author Sturgis, Howard E. ♦ Lampson, Butler W.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Faults ♦ Memory hierarchy ♦ Layering domains ♦ Capabilities ♦ Protection ♦ Operating system
Abstract The main features of a general purpose multiaccess operating system developed for the CDC 6400 at Berkeley are presented, and its good and bad points are discussed as they appear in retrospect. Distinctive features of the design were the use of capabilities for protection, and the organization of the system into a sequence of layers, each building on the facilities provided by earlier ones and protecting itself from the malfunctions of later ones. There were serious problems in maintaining the protection between layers when levels were added to the memory hierarchy; these problems are discussed and a new solution is described.
Description Affiliation: Xerox Palo Alto Research Center, Palo Alto, CA (Lampson, Butler W.; Sturgis, Howard E.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 19
Issue Number 5
Page Count 15
Starting Page 251
Ending Page 265


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Source: ACM Digital Library