Digital Differential Analyzers
Digital differential analyzers are a class of electronic computers which have not yet had the general recognition they undoubtedly deserve. The probable reason for this fact is that there is only a narrow field of application in which digital differential
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PAUL VON HANDEL INSTITUTE FOR DEFENSE ANALYSES, WASHINGTON, D. C., USA
WITH THE COOPERATION OF
HANS W. GSCHWIND, MARTIN G. JAENKE AND ROBERT G. TANTZEN AIR FORCE MISSILE DEVELOPMENT CENTER, HOLLOMAN AFB., NEW MEXICO, USA
WITH 160 FIGURES
SPRINGER-VERLAG WIEN GMBH PRENTICE-HALL, INC. / ENGLEWOOD CLIFFS, N.J.
25048-c All rights reserved. No part of this book may be reproduced in any form, by mimeograph or any other means, without permission in writing from the publishers Library of Congress Catalog Card Number 61-12942 ISBN 978-3-7091-4622-4 DOI 10.1007/978-3-7091-4772-6
ISBN 978-3-7091-4772-6 (eBook)
Softcover reprint of the hardcover 2nd edition 1962 First printing Second printing
September, 1961 September, 1962
Preface The 19th century was distinguished by the construction of machines with enormous power. During the last decade rapid progress has been made in the development of a completely different typ" of machine. These new machines, the electronic computers, are not built to generate power or to do mechanical work, but to perform logical operations and calculations. This new concept will have a profound influence on engineering, science, and economy. In fact, the first effects of this development are already taking shape today. It is the purpose of this book to give a survey of the basic principles and applications of computers for the benefit of those who hitherto did not work with them, but who might have use for them in the future. The rapid progress of the engineering science has, naturally, led to a situation in whicli the practicing scientist and engineer cannot keep abreast of the progress in neighboring fields. The chapters of this book were prepared by distinguished experts in the field of computers for the non-expert who does not intend to become an expert, but who wants to acquire a general understanding of the problems and solutions which he needs to effectively perform the work in his proper field. We address this book to the engineers and scientists who want to know the performance of computers, as well as to the managers who are mainly concerned with their economic aspect. The technical development of computing machines is going on at a rapid rate. Any detailed description of computer components would therefore become obsolete within a few years. The general principles underlying their operation will probably remain unchanged for a longer time. Accordingly, this book puts main emphasis on principles and methods rather than on engineering details. Washington, March 1961.
Paul :von Handel
Table of Contents Chapter
I.
Chapter
2.
Introduction. By PAUL VON HANDEL, Washington Digital Computers. By RoBERT G. TANTZEN, Holloman AFB.. .. . . . ...... 2. 1. Layout and Structure . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 2.11. Early Automatic Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.12. Modern Electronic Digital Computers .... . . . ...... . : . . . . . . . . 2.13. Design. Features ........ . .. . .............. . .
