NDLI: An operating system for a central real-time data-processing computer

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An operating system for a central real-time data-processing computer

Content Provider	ACM Digital Library
Author	Day, Paul Krejci, Henry
Abstract	A detailed study of the laboratory data-processing needs of our Chemistry Division has shown that about 25 unrelated experiments (see Table I) will require or greatly benefit from real-time computer service. An assessment of the nature of these requirements and a careful study of the capabilities of the Sigma 7 computer clearly indicate that this work load could be handled by such a central computer. This load will use up to 10% of the I/O capacity of the system and require about 40% of the Central Processor time to satisfy the real-time needs of all the experiments if they are running simultaneously. An additional 30% of the Central Processor capability would be used to perform final processing and analysis of the data at the end of each experiment. Further examination of the problem indicated that while a comparable amount of money would have to be spent whether we purchased individual computers for each experiment or a single Sigma 7 system, the service that could be provided by the central system would be far superior to the individual small computer service. In addition to the usual features found in third generation computers, the Sigma 7 has true independent Input/Output processors, independent memory modules and a high speed random access device (3 X $10^{6}$ bytes/sec transfer rate), all of which are essential for the efficient operation of a large data-collection and processing system.
Starting Page	1187
Ending Page	1196
Page Count	10
File Format	PDF
DOI	10.1145/1476706.1476742
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1968-12-09
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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