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Author Orchard-Hays, William
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Abstract The basic software for all newer computers is built on the well-established need for standard operating systems. This implies that all applications—no matter how large, complex or time consuming—must operate under (or, more precisely, on top of) the standard system.Large applications require supervisory monitors which handle problems similar to those of the operating systems, but at a different level. Sometimes, still a third or even a fourth such level is required or desirable. This leads naturally to the concept of multilevel systems—similar vertically, but different horizontally. Proper division of responsibility between levels leads to greater efficiency and less logical complexity, while actually enhancing capability.
Description Affiliation: Orchard-Hays & Co., New York, NY (Orchard-Hays, William)
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 9
Issue Number 3
Page Count 2
Starting Page 189
Ending Page 190


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Source: ACM Digital Library