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IRE Transactions on Electronic Computers

Issue 4 • Date Dec. 1960

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Displaying Results 1 - 25 of 32
  • [Front cover]

    Publication Year: 1960, Page(s): c1
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  • IRE Professional Group on Electronic Computers

    Publication Year: 1960, Page(s): nil1
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  • [Breaker page]

    Publication Year: 1960, Page(s): nil1
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  • Improvements to Current Switching

    Publication Year: 1960, Page(s):415 - 418
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (666 KB)

    Diode switching circuits have been used in conjunction with emitter followers and current switching circuits to evolve a new set of system building blocks. These blocks exhibit typical delays under five millimicroseconds. Diodes cost less and are physically smaller than transistors; therefore, this new system is cheaper and faster than an all-current switching system and permits at least a fivefol... View full abstract»

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  • System Application of Hybrid Logic Circuitry

    Publication Year: 1960, Page(s):418 - 423
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1034 KB)

    A comparative performance rating of circuit techniques for performing logical functions in digital systems may be based upon: 1) Reliability and simplicity 2) Input and output capabilities 3) Propagation time 4) Cost. The ``Hybrid Transistor Diode Logic'' (HTDL) circuit technique employs either diodes or emitter follower transistors as gates and buffers, to maximize the circuit performance rating.... View full abstract»

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  • Esaki Diode Logic Circuits

    Publication Year: 1960, Page(s):423 - 429
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1409 KB)

    The Esaki diode is a potentially low-cost, high-speed two-terminal device exhibiting a short-circuit-stable negative resistance over a portion of its volt-ampere characteristic. By proper biasing and loading, it can be used to perform power amplification and memory functions. In this paper, a variety of digital computer circuits (a result of an early exploratory program) is described which utilize... View full abstract»

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  • Tunnel Diode Logic Circuits

    Publication Year: 1960, Page(s):430 - 438
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2046 KB)

    The recent discovery of the tunnel diode with band-widths extending into the kilomegacycle region has prompted investigation of their use in the logic and control portions of high-speed computers. Considerations of diode uniformity requirements, stability problems and power supply requirements has led to a monostable type of logical circuit. The switching properties of this circuit are analyzed an... View full abstract»

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  • A Secondary-Emission Pulse Circuit, Its Analysis and Application

    Publication Year: 1960, Page(s):439 - 451
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2137 KB)

    This paper describes a regenerative pulse circuit using a single secondary-emission tube that is able to generate pulses having a rise time of 6 m¿sec and a width continuously variable from 25 m¿sec to 12 ¿sec. First, a theoretical discussion of the circuit is given in which expressions for pulse width and rise time are derived. Then, various practical realizations of the circuit are presented.... View full abstract»

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  • An Electrically Alterable Nondestructive Twistor Memory

    Publication Year: 1960, Page(s):451 - 455
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1590 KB)

    The twistor is a relatively new memory device which may be operated either in a conventional destructive read-out mode, or, by the method explained in this paper, in a nondestructive mode. This paper discusses the basic principles of twistor operation and shows how the twistor may be fabricated into a memory. A non-destructive method of reading a twistor memory by the use of multiple solenoids is ... View full abstract»

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  • Current Build-Up in Avalanche Transistors with Resistance Loads

    Publication Year: 1960, Page(s):456 - 460
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    A transient analysis for the avalanche transistor is carried out through the use of a diffusion model described in terms of charge variables. Basically, the current as a function of time is calculated by taking the gradient of the minority carrier charge stored in the base region. Two methods of approximating the distribution of stored charge are described. Good agreement has been obtained between... View full abstract»

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  • High-Speed Transistorized Adder for a Digital Computer

    Publication Year: 1960, Page(s):461 - 464
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1322 KB)

    An adder is described that has been developed for the Floating Indexed Point Arithmetic Unit, FLIP, to be used in conjunction with GEORGE, the existing computer built at Argonne National Laboratory. The logic of the high-speed adder and the special circuits required are presented. The adder is parallel and its high speed is made possible by reducing the carry propagation time. Each bit of the adde... View full abstract»

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  • Fast High-Accuracy Binary Parallel Addition

    Publication Year: 1960, Page(s):465 - 469
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (742 KB)

    Future designs of parallel digital computers will be concerned with increased accuracy in arithmetic operations. When the number of bits per operand is increased, one basic speed limitation to these operations is the time required to propagate carries in addition or borrows in subtraction. A quantitative method of evaluating the drastic reduction in time achieved by asynchronous addition technique... View full abstract»

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  • Characterizing Experiments for Finite-Memory Binary Automata

    Publication Year: 1960, Page(s):469 - 471
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (462 KB)

    The characteristics of a discrete automaton with a finite memory can be determined by an experiment of a finite length. This paper discusses the properties of such experiments, and presents methods for their optimal construction. Specific results are given for binary-input automata with the memory ranges 0, 1, 2, 3 and 4. View full abstract»

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  • Statistical Recognition Functions and the Design of Pattern Recognizers

    Publication Year: 1960, Page(s):472 - 477
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1074 KB)

    According to the model discussed in this paper, a pattern recognizer is said to consist of two parts: a receptor, which generates a set of measurements of the physical sample to be recognized, and a categorizer, which assigns each set of measurements to one of a finite number of categories. The rule of operation of the categorizer is called the ``recognition function.'' The optimization of the rec... View full abstract»

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  • The Simplification of Multiple-Output Switching Networks Composed of Unilateral Devices

    Publication Year: 1960, Page(s):477 - 486
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1629 KB)

    The purpose of this paper is to show that two-level (no more than two gates in cascade) multiple-output switching networks composed of unilateral switching devices such as diodes can be simplified or minimized in much the same manner as single-output networks. This is accomplished by extending the notation and techniques used in the simplification of two-level single-output switching networks to m... View full abstract»

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  • Uniqueness of Weighted Code Representations

    Publication Year: 1960, Page(s):487 - 489
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Decimal computers ordinarily use a binary-coded decimal representation. One class of binary-coded decimal digits is the so-called four-bit weighted code representation with weights ¿1 ¿2 ¿3 ¿4. Each ¿i is a nonzero integer in the range ¿9¿¿i¿9, and the set of weights must have the property that every decimal digit can be represented by the sum ¿i=14 bi ¿i, with the bi being 0 or 1. For ... View full abstract»

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  • Analog Representation of Poisson's Equation in Two Dimensions

    Publication Year: 1960, Page(s):490 - 496
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2913 KB)

    A new analog device, called a Poisson cell, has been developed which aids in obtaining solutions to either Laplace's equation or Poisson's equation. The cell may be used to simulate such potentials as electric potential, magnetic potential, gravitational potential, and the velocity potential of irrotational flow; it has applications in the fields of hydrodynamics, heat conduction, and aerodynamics... View full abstract»

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  • A New, Solid-State, Nonlinear Analog Component

    Publication Year: 1960, Page(s):496 - 503
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1981 KB)

    Since the inception of the electronic analog computer as a useful engineering tool, the need for practical methods of solving nonlinear problems has steadily increased. This paper describes a passive, nonlinear device which, when used with operational amplifiers, provides the means for obtaining a large class of functions. These are obtained to a degree of accuracy and reliability not previously p... View full abstract»

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  • Solving Integral Equations on a Repetitive Differential Analyzer

    Publication Year: 1960, Page(s):503 - 506
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1817 KB)

    Methods of practical solution of integral equations on electronic differential analyzers are not well developed. In those cases where such methods have been outlined, special and costly additional equipment is required. Results presented in this work show that practical solution of integral equations is possible using a repetitive differential analyzer of convenient design. View full abstract»

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  • A New Technique for Analog Integration and Differentiation

    Publication Year: 1960, Page(s):507 - 509
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB)

    A technique is described which enables an approach to ideal analog integration or differentiation by means of passive elements only. A series of RC circuits in a cascade arrangement, uncoupled to each other, provides the first, second, third, etc., integrals or derivatives (according to the connection of the RC circuits) of the input function. The theory establishes that if the outputs of each are... View full abstract»

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  • Correction

    Publication Year: 1960, Page(s): 509
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  • A Note on the Simultaneous-Carry-Generation System for High-Speed Adders

    Publication Year: 1960, Page(s): 510
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    First Page of the Article
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  • Periodic Binary Time Series and Their Relation to Boolean Functions

    Publication Year: 1960, Page(s): 510
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    First Page of the Article
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  • Contributors

    Publication Year: 1960, Page(s):511 - 514
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    Freely Available from IEEE
  • Reviews of Books and Papers in the Computer Field

    Publication Year: 1960, Page(s):515 - 530
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    Freely Available from IEEE

Aims & Scope

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

IEEE Transactions on Computers.

Full Aims & Scope