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 ABSTRACT
In early 1977 we began to design the concurrent programming facilities of Pilot, a new operating system for a personal computer [5]. Pilot is a fairly large program itself (25,000 lines of Mesa code). In addition, it supports some large applications, ranging from data base management to internetwork message transmission, which are heavy users of concurrency (our experience with some of these applications is discussed in the paper). We intended the new facilities to be used at least for the following purposes: Local concurrent programming: An individual application can be implemented as a tightly coupled group of synchronized processes to express the concurrency inherent in the application. Global resource sharing: Independent applications can run together on the same machine, cooperatively sharing the resources; in particular, their processes can share the processor. Replacing interrupts: A request for software attention to a device can be handled directly by waking up an appropriate process, without going through a separate interrupt mechanism (e.g., a forced branch, etc.).
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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Brinch Hansen, P. "The programming language Concurrent Pascal," IEEE Transactions on Software Engineering1, 2, pp 199-207 (June 1975).
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Mitchell, J.G., Maybury, W. and Sweet, R., Mesa Language Manual, Report CSL-79-3, Xerox Research Center, Palo Alto, CA, 1979.
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5
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David D. Redell , Yogen K. Dalal , Thomas R. Horsley , Hugh C. Lauer , William C. Lynch , Paul R. McJones , Hal G. Murray , Stephen C. Purcell, Pilot: an operating system for a personal computer, Communications of the ACM, v.23 n.2, p.81-92, Feb. 1980
[doi> 10.1145/358818.358822]
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