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Algorithms for Parallel-Search Memories

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Published:01 October 1962Publication History
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Abstract

The underlying logical structure of parallel-search memories is described; the characteristic operation of three major types is displayed in the execution of searches based on equality; and algorithms are presented for searches based on other specifications including maximum, miniTnum, greater than, less than, nearest to, between limits, and ordering (sorting). It is shown that there is a hierarchy of dependency among these algorithms, that they appear in pairs with each member of a pair belonging to one or the other of two distinct classes, and that every type of search can be executed within each class.

References

  1. 1 McDERMID, W L., AND PETERSEN, H. E. A magnetic associative memory system. IBM J. Res. Dev. ~ (Jan. 1961), 59.Google ScholarGoogle Scholar
  2. 2 SLADE, A. E., AND MCMA~ON, H.O. A cryotron catalog memory system Proc EJCC (Dec. 1956), 115-120.Google ScholarGoogle Scholar
  3. 3 IVERSON, I(. E. A Programming Language. Wiley (1962) Google ScholarGoogle Scholar
  4. 4 KISEDA, J R, PETERSEN, i. n., SEELBACH, W. C , AND TEI~, M. A magnetic associative memory. IBM d. Res. Dev. 5 (Apr. 1961), 106.Google ScholarGoogle Scholar
  5. 5 The incorporation of a plurality counter in each column was communicated to the author by R. I. Roth, IBM Thomas J. Watson Research Center, who has designed a memory to operate according to Program 8.Google ScholarGoogle Scholar
  6. 6 SEEBER, R. R., AND LINDqUIST, A B. Associative memory with ordered retrieval. 1BM J. ICes. Dev. 6 (Jan. 1962), 126 This article gives a detaded description of the memory system whose princxple of operation has been summarized in Program 12Google ScholarGoogle Scholar

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      • Published in

        cover image Journal of the ACM
        Journal of the ACM  Volume 9, Issue 4
        Oct. 1962
        114 pages
        ISSN:0004-5411
        EISSN:1557-735X
        DOI:10.1145/321138
        Issue’s Table of Contents

        Copyright © 1962 ACM

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        Association for Computing Machinery

        New York, NY, United States

        Publication History

        • Published: 1 October 1962
        Published in jacm Volume 9, Issue 4

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