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The IBM Magnetic Drum Calculator Type 650

IP.com Disclosure Number: IPCOM000129478D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Oct-06
Document File: 8 page(s) / 41K

Publishing Venue

Software Patent Institute

Related People

F. E. HAMILTON: AUTHOR [+3]

Abstract

The following article, presented at a meeting of the Association for Computing Machinery on September 9-11, 1953, is an excellent description of the 650, and we are reprinting it with the permission of ACM. Frank Hamilton has been mentioned often in the Annals; he helped design some of IBM's great calculators, such as the Harvard Mark I and the SSEC. He retired from IBM in 1963 and died in 1972. Elmer Kubie now lives in Florida, where he teaches mathematics and computing in a private school for young men.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 16% of the total text.

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THIS DOCUMENT IS AN APPROXIMATE REPRESENTATION OF THE ORIGINAL.

Copyright ©; 1986 by the American Federation of Information Processing Societies, Inc. Used with permission.

The IBM Magnetic Drum Calculator Type 650

F. E. HAMILTON

E. C. KUBIE

(Image Omitted: © 1986 by the American Federation of Information Processing Societies, Inc. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the AFIPS copyright notice and the title of the publication and its date appear, and notice is given that the copying is by permission of the American Federation of Information Processing Societies, Inc. To copy otherwise, or to republish, requires specific permission. Reprinted with permission from the Journal of the ACM, Vol. 1, 1954. © 1954 by the Association for Computing Machinery, Inc. Categories and Subject Descriptors: C.1.1 [Processor Architectures], Single Data Stream Architectures; K.2 [History of Computing] -- hardware, IBM 650, software. General Terms: Design. © 1986 AFIPS 0164-

12S9/86/010014-019

The IBM Magnetic Drum Calculator Type 650

F. E. HAMILTON

E. C. KUBIE .00/00)

Editor's Note

The following article, presented at a meeting of the Association for Computing Machinery on September 9-11, 1953, is an excellent description of the 650, and we are reprinting it with the permission of ACM. Frank Hamilton has been mentioned often in the Annals; he helped design some of IBM's great calculators, such as the Harvard Mark I and the SSEC. He retired from IBM in 1963 and died in 1972. Elmer Kubie now lives in Florida, where he teaches mathematics and computing in a private school for young men.

The IBM Magnetic Drum Calculator Type 650 is an electronic calculator intermediate in speed, capacity, and cost. It takes a logical position between the IBM Card Programmed Electronic Calculator and the IBM Electronic Data Processing Machines Type 701. It is a more powerful computing tool as required by those who have "outgrown" the Card Programmed Electronic Calculator. It is also a machine which may be used economically by those who are not as yet ready for a large- scale computer such as the 701. It will serve not only to perform their required computing tasks, but it will also result in gaining valuable experience for later use of large-scale equipment. The Magnetic Drum Calculator, through its stored-program control, comprehensive order list, punched-card input-output, self-checking, and moderate memory capacity, gains the flexibility required of a computer which is to serve in both the commercial and scientific computing fields.

IEEE Computer Society, Jan 01, 1986 Page 1 IEEE Annals of the History of Computing Volume 8 Number 1, Pages 14-19

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The IBM Magnetic Drum Calculator Type 650

Approximately 2000 tubes are used in the machine. They are the 5965, 6211, 12AY7, 6AL5, 2D21, and 5687. Types 6211 and 5965 are similar to the 12AV7. These...