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Author Baskin, Herbert B. ♦ Rittenhouse, Larry E. ♦ Horowitz, Elsa B. ♦ Tennison, Robert D.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword General purpose time-sharing systems ♦ Multiple processor systems ♦ Modular computer-sharing systems ♦ Conversational systems ♦ Multiple terminal systems ♦ Control computer ♦ Graphics ♦ Real-time response system ♦ High availability ♦ Terminal oriented systems ♦ Intercomputer communications ♦ File switch ♦ Modular constructed systems ♦ Roll-in ♦ Roll-out ♦ Problem computer
Abstract An alternative approach to the design and organization of a general purpose interactive multiterminal computing system is presented. The system organization described is a conceptually simple arrangement of a bank of interchangeable computers, each of which is a memory/proputor pair, that are assigned to process terminal jobs as they arrive. One of the computers serves as the master or control computer and supervises the collection and distribution of messages from and to the remote terminals. In the simplest form there is a disk drive for each connected terminal. A crosspoint switching network allows any such disk drive to be connected to any computer in the bank, under control of the control computer. Thus, while each active terminal user “occupies” a dedicated disk drive, he may share the computer with many other terminal users in a simple manner. The ratio of users to computers is dependent on both the size and power of the machines used and the computation requirements of the particular mix of users.This system organization is inherently a simpler and therefore more reliable approach to time-sharing computers and has the potential of a highly available system at relatively low cost. Economic configurations are possible for a range of systems sizes that span at least one order of magnitude. Finally, problem programs developed by remote terminal users can be run on a dedicated batch system if compatible computers are used.
Description Affiliation: IBM Thomas J. Watson Research Center, Yorktown Heights, NY (Baskin, Herbert B.; Horowitz, Elsa B.; Tennison, Robert D.; Rittenhouse, Larry 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 12
Issue Number 10
Page Count 9
Starting Page 551
Ending Page 559


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Source: ACM Digital Library