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IRE Transactions on Electronic Computers

Issue 4 • Date Dec. 1958

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Displaying Results 1 - 22 of 22
  • [Front cover]

    Publication Year: 1958, Page(s): c1
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  • IRE Professional Group on Electronic Computers

    Publication Year: 1958, Page(s): nil1
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  • [Breaker page]

    Publication Year: 1958, Page(s): nil1
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  • Howard E. Tompkins

    Publication Year: 1958, Page(s): 261
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  • A Magnetic Core Parallel Adder

    Publication Year: 1958, Page(s):262 - 264
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (567 KB)

    A logical design using magnetic core elements which does not have the usual carry time limitations is described. The synthesis uses a truth-table technique. View full abstract»

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  • Significant Digit Computer Arithmetic

    Publication Year: 1958, Page(s):265 - 267
    Cited by:  Papers (13)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (667 KB)

    The usual floating point arithmetic makes error analysis difficult. This paper describes an alternative system which offers a means of analyzing floating point calculations more effectively and which also possesses certain advantages from an equipment standpoint. View full abstract»

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  • Minimal ``Sum of Products of Sums" Expressions of Boolean Functions

    Publication Year: 1958, Page(s):268 - 276
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1409 KB)

    The problem of economical synthesis of circuits for digital computers leads to the problem of finding Boolean expressions of minimal length equivalent to a Boolean expression f. Previous authors restricted themselves to ``sum of products'' expressions; dualizing this gives ``products of sums.'' The next more efficient step is to find minimal ``sums of products of sums'' expressions. In this paper,... View full abstract»

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  • A Method for Synthesizing the Waveform Generated by a Character, Printed in Magnetic Ink, in Passing Beneath a Magnetic Reading Head

    Publication Year: 1958, Page(s):277 - 282
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (901 KB)

    When a character printed in magnetic ink passes beneath a magnetic reading head it generates a waveform. A method is described here to determine this waveform from the geometry of the printed character. The character shape is divided into elementary vertical units and the height of these units is then tabulated. A single set of experimental data is obtained in the laboratory by passing a magnetica... View full abstract»

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  • On the Minimum Logical Complexity Required for a General Purpose Computer

    Publication Year: 1958, Page(s):282 - 285
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (845 KB)

    A definition is provided for the term ``general purpose computer'' (gpc) which is compatible with usage and is analogous to, but distinct from, Turing's definition of a ``universal computer.'' A gpc is presented in functional and logical design which seems to approximate the minimum complexity consistent with this definition. No specific definition of complexity nor a bound on required complexity ... View full abstract»

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  • Iterative Combinational Switching Networksߞ General Design Considerations

    Publication Year: 1958, Page(s):285 - 291
    Cited by:  Papers (15)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1244 KB)

    An iterative network is a combinational switching circuit which consists of a series of identical "cells" or sub-networks; for example, the stages of a parallel binary adder. A formal design method for iterative networks is presented. This is similar to the flow table technique for designing sequlential circuits. View full abstract»

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  • Some Properties of Boolean Equations

    Publication Year: 1958, Page(s):291 - 298
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1236 KB)

    Solubility conditions for a set of Boolean equations are established, first with respect to one variable, then with respect to all variables. By consideration of relations between minimal terms, a simple matrix form is deduced for Boolean equations. Using finite group theory and the properties of the characteristic equation of the matrix, a classification is introduced for Boolean mappings and the... View full abstract»

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  • Analysis of Sequential Machines II

    Publication Year: 1958, Page(s):299 - 306
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1268 KB)

    Mealy's model of a sequential machine is assumed and a relation of ``compatibility'' of states is introduced to further the analysis of such machines. In the event that input restrictions exist it is often possible to effect combinations of states under this relation in addition to those permitted under equivalence of states, a relation previously studied. Compatibility of states is analyzed by an... View full abstract»

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  • Theoretical Consideration of Computing Errors of a Slow Type Electronic Analog Computer

    Publication Year: 1958, Page(s):306 - 312
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (958 KB)

    When solving differential equations using analog computers, there are two causes of errors: one results from the integrators and the other results from the coefficient setting elements. The former is independent of the order of the differential equation if the integrating time constants are all equal, while the latter is dependent on the setup procedure. The amount of the error from the coefficien... View full abstract»

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  • BIDEC - A Binary-to-Decimal or Decimal-to-Binary Converter

    Publication Year: 1958, Page(s):313 - 316
    Cited by:  Papers (9)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (819 KB)

    Simple, high-speed devices to convert binary, binary coded octal, or Gray code numbers to binary coded decimal numbers or vice versa is described. Circuitry required is four shift register stages per decimal digit plus one 30-diode network per decimal digit. In simple form the conversion requires two operations per binary bit but is theoretically capable of working at one operation per bit. View full abstract»

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  • Diodeless Magnetic Shift Registers Utilizing Transfluxors

    Publication Year: 1958, Page(s):316 - 324
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1547 KB)

    Shift registers using magnetic cores have been conventionally designed with diodes to provide isolation between stages. It is possible to use transfluxors in a two-core-per-bit fashion so as to provide isolation between stages by magnetic means rather than with diodes. A design procedure for doing so is discussed. View full abstract»

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  • Correction

    Publication Year: 1958, Page(s): 324
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  • Folding of Symmetric Functions

    Publication Year: 1958, Page(s): 325
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    First Page of the Article
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  • Contributors

    Publication Year: 1958, Page(s):326 - 327
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  • PGEC News

    Publication Year: 1958, Page(s): 327
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  • SENEWS Science Education Subcommittee Newsletter

    Publication Year: 1958, Page(s):328 - 330
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  • Index to IRE Transactions on Electronic Computers

    Publication Year: 1958, Page(s):331 - 334
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  • [Front cover]

    Publication Year: 1958, Page(s): c2
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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is 

IEEE Transactions on Computers.

Full Aims & Scope