A transistor digital computer

Cooke-Yarborough, E.H.; Barnes, R.C.M.; Stephen, J.; Howells, G.A.

doi:10.1049/pi-b-1.1956.0076

Cited by 2 publications

(2 citation statements)

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“…1 The circuits are found to operate satisfactorily with almost any point-contact transistor which will pass the tests set out in Reference 3.…”

Section: 5) Short Multiplicationmentioning

confidence: 85%

“…\{a) differs only in detail from the bi-stable circuit already described by one of the present authors 3 and by Chaplin. 4 The circuit is triggered to the "on" condition by discharging rapidly into the emitter a condenser forming part of one of the (1) INTRODUCTION The principles and mode of operation of the computer are discussed in an accompanying paper, 1 where it is shown that, in a medium-speed computer using transistor circuits, rapid-access storage is difficult to apply and there are advantages in using only a magnetic drum for storage purposes. In such a computer arithmetical operations are facilitated by interleaving 2 the digits of the words stored on the drum, since this allows the reading of operands from the drum, the performance of the operation and the writing of the result back on to the drum, to proceed concurrently.…”

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confidence: 99%

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Transistor arithmetic circuits for an interleaved-digit computer

Barnes¹,

Howells²,

Cooke-Yarborough³

1956

Proceedings of the IEE - Part B: Radio and Electronic Engineering

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Earlier papers have described transistor circuits for use as computer elements. This paper describes the development of these, and various gating circuits, as the standard elements from which a digital computer has been constructed. The application of the standard circuits to the arithmetic unit of the computer is illustrated by two examples: an adder of unusual logical design to suit the interleaved-word storage system, and a multiplier system which forms the signed product of two 31-digit binary words in six word-times. A general description of the computer, and details of the magnetic-drum store, are given in accompanying papers.sistors. Mono-stable transistor circuits provide the pulses required to drive the bi-stable circuits from the "on" to the "off" condition.

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“…1 The circuits are found to operate satisfactorily with almost any point-contact transistor which will pass the tests set out in Reference 3.…”

Section: 5) Short Multiplicationmentioning

confidence: 85%

mentioning

confidence: 99%