DIGITAL CO MPUT ER hpefthnuitr- DIGIT L CO M UTER Is to pravld* a medlust for the Interebaql Amei Interested rese of Infoermtion con- to varlos diggitalessuter " •AIk ,prlej sts. OIIstr livt 1111 IsIIWI Y.EW LL47 .hWta~rsoll IaII tantributers 'OFFICE OF NAVAL RESEARCH • MATNEMATICAL SCIENC$S oIVIf1N SVol. 17, No. 3 Gordon D. Goldstein, Editor July 1965 Margo A. Sass, Associate Editor Jean T. Usilton, Editorial Assistant Elaine K. Strohl, Editorial Assistant D C CONTENTS(YmnP SEDITORIAL NOTICES 1. Editorial Policy 2. Contributions OTIG1 3. Circulation 4. Errata ., COMPUTERS AND DATA PROCESSORS. NORTH AMERICA 1. Air Force Missile Development Center, CDC 3600 Computing System, Holloman Air Force Base, New Mexico 88330 2. American Bosch Arma Corporation, Micro C. Computer, Garden City, N.Y. 11532 3. University of California, Western Data Processing Center, The IBM 7040/ 7094 Direct Couple System, Los Angeles, California 4 4. International Business Machines Corporation, System 360 Time-Sharing Computers, White Plains, N.Y. 5 COMPUTING CENTERS 1. University of California, Computing Facility, Los Angeles 24, Callfoinia 7 2. University of Illinois, Department of Computer Science, Urbana, Illinois 8 3. International Business Machines Corporation, Manpower Management System, Washington, D.C. 20036 8 4, University of Maryland, Computer Science Center, College Park, Maryland 20742 9 5. New York University, Courant Institute of Mathematical Sciences, AEC Computing and Applied Mathematics Center, New York 3, N.Y. 10 6. University of Pennsylvania, The Moore School Problem-Solving Facility, Philadelphia, Pennsylvania 19104 10 7. Space Technology Laboratories, Thompson Rarno Woolidridge Inc., On-Line Computing Center, Redondo Beach, California 10 COMPUTERS AND CENTERS, OVERSEAS 1. Industridata Aktiebolag, New Data Centers, Solna I, Sweden 13 2. N. V. Electrologica, EL XZ. The Hague, Netherlands 13 3. Universita' di Genova. Istituto di Elettrotecnica, Genova, Italy 15 4. The Marconi Company Limited, TAG - A High-Speed Real-Time Computer, Chelmsford, Essex, England 15 MISCELLANEOUS 1. The University of Chicago, Institute for Computer Research, On-Line Experiments in Particle Physics, Chicago, Illinois 60637 20 2. The University of Illinois, Coordinated Science Laboratory, Plato II and III, Urbana, Illinois 20 3. National Bureau of Standards. Historic SEAC Computer Parts Presented to Smithsonian, Washington, D.C. 20234 Z5 4. National Bureau of Standards, Computer Plots Potential Nuclear Damage, Washington, D.C. 20234 25 5. Office of Naval Research, Gaku-Computer System to Solve Problems by Experience, Washington, D.C. 20360 27 6. The Pennsylvania State University, Redundant Digital Counting Circuits, University Park, Pennsylvania 28 7. PArdue University, Automatic Control Center. Lafayette, Indiana 29 S. Stanford Research Institute, The MINOS II Pattern Recognition Facility, Menlo Park, California 9402S 30 9. US. Department of Commerce, Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia - 10. U.S. Naval Underwater Ordnance Station, Automatic System for cil '._"g Ejector Research, Newport, Rhode Island 02844 J,. ' (4k0&A c.d. l. ; it Approved by Reproduced by the The Under Secretary of the Navy C L E A R I N G H O U S E 25 September 1961 NAVSO P-645 for Federal Scientific & Technical Information Springfield Va. 22151 Fditorial Notices EDITORIAL POLICY agencies, to contractors for the Federal Gov- --- .w " *n im-ntrhutUre of material for The Digital Computer Newsletter, although ývblication. a Department of the Navy publication, Is not restricted to the publication of Navy-ogiginated For many years, in addition to te GNU I comesmaterial. contributions The Office to of the Naval Newsletter Research from wel- iiildsrbloteNwlteiniial d bution the Newsletter wasa ere- any source. Thu Newsletter from printed by the Association for Computing Wk- certain limitationscertanmatrialmore In slue which prevent pub- chineryrecently, as a supplement as a supplement to their to Journal their and, lishing all the material received. However, Communications. The Assbatation decided items which are not printed are kept on file that their Communications could better. and are made available to interested personnel serve its members by concentrating On ACM editorial material. Accordingly, effective DC In published quarterly (January, April, with the combined January-April 1961 Issue, July, and October). Material for specific issues the Newsletter became available only by July an Octber. spcifc Isues must be received by the editor at least three direct distribution from the Office of Naval months in advance. Research. It is to be noted that the publication of in- Requests to receive the Newsletter regu- formation pertaining to commercial products larly should be submitted to the editor. Con- does not, in any way, imply Navy approval of tractors of the Federal Government should ref- those products, nor does it mean that Navy erence applicable contracts in their requests. vouches for the accuracy of the statements made by the various contributors. The infor- mation contained herein is to be considered only as being representative of the state-of- the-art and not as the sole product or technique ERRATA available. There Is an old adage in some organizations that they can accomplish the difficult in a short CONTRIBUTIONS time, but the Impossible takes a little longer. For the Newsletter, the impossible took ten The Office of Naval Research welcomes years and then occurred in the masthead of the contributions to the Newsletter from any source. April issue. Because the masthead In a photo Your contributions will provide assistance in replica, and has been in use for ten years, it is Improving the contents of the publication, thereby not seen by the editor. Somehow, for the April making it an even better medium for the ex- issue, someone literally dug up (and it wasn't change of Information between government lab- easy) a photo replica that went out of use in oratories, academic institutions, and industry. 1956. So to keep the record straight, the News- t is hoped that the readers will participate to letter continues to be a publication of the Math- an even greater extent than in the past in trans- ematical Sciences Division; Il did not move to mitting technical material and suggestions to the Physical Sciences Division. the editor for future issues. Material for spe- cific issues must be received by the editor at least three months In advance. I is often im- possible for the editor, because of limited time and personnel, to acknowledge Individually all All communications pertaining to the News- material received. letter should be addressed to: GORDON D. GOLDTEDIN, Editor CIRCULATION Digital Cnmpter Newsletter Informattons Systems Branch The Newsletter is distributed, without Office of Naial Research charge, to interested military and government Washington, D. C. 20360 TheNesletetsditriutd, ito• ffce f a'fl eser1 I 61 Computers and Data Processors, North America G IX' 3600 Computing System II,.'lelylm,j'lllDIfJ . I'O,)III ;IIFl~m•/l,,V'w.1h'.1'. ,•il I~ur,, ',t/Ju~',ll!u,N.lAf•ay8 ( ;e1h, 1 it) The Air Force Missile Development Center three printers, two plotters, a card reader, and has a CDC 3600 with a CDC 160A satellite. The a card punch. All these peripheral Jobs proceed hardware configuration provides access to all at full speed and start or stop independently of tapes, printers, and card readers from either each other. A remote terminal with a CDC 8090 computer. An in-house developed time-share processor is being connected via telephone line program for the 160A simultaneously drives to the system. Micro G Computer • a..pii.m, 11 rh .AimaCori•lmili.,i (;,,hlt C'I,N, . Y). I15 72 The Micro C Computer was developed espe- Memory Type* NDRO multi-aperture cially for use on Navy surface ships and sub- core marines. The Micro C is a compact, general purpose, digital computer designed for military Input-Output 258 separate locations environments. It is especially suited to Navy Addresses available maintenance requirements, as the computer is modularized and malfunctions can rapidly be Instruction 20 separate operations isolated to a plug-in throw-away module. The Repertoire machine is an outgrowth of the ARMA product line of micro computers and is logically and Instruction Time 27 microsec/word electrically similar to micro-computers de- signed for missile environments. Instructions Included: Arithmetic and Memory Characteristics Clear and Add 1 word time Organization Serial, single address Transfer 1 word time Number System Binary, fixed point, Add 1 word time fractional, two's complement for Subtract I word time negative numbers Store .1 word time Clock Frequency 972 kc Shift n Places n + 1 word time Execution Rate 36000 words/second Multiply (Single 5 word times Data Format 22 bits (including Precision) sign), non-return to zero Multiply (Double 5 word times Precision) ' Program Storage 4608 words, expand- P, able to 6144 words, Square Root 12 to 22 word times 22 bits each, indi- vidually addressable Divide 12 word times Working Storage 1792 words, 22 bits 9*Also can be supplied with a single aperture Memory Access Random: 3 micro- ferrite core DRO memory of up to 32,000 seconds words. 2 4 . Physical Charaeteristics Environmental Snectfications Size (cubic feet) 3.87 (For computer with I 6144 words of NDRO Operative memory, I/0 com- plement as described Vibration 0.2g 2/cps, 15-2000 under characteristics cps Weight (pounds) 150 of Typical