THE FIRST TV CAMERA DESIGNED FORCOMPUTER INTERFACE

SUPERB RESOLUTION-Observe minute detail with resolution over1000 TV lines.

VIRTUALLY DISTORTION-FREE-Image is accurate, linear from center of screen to outeredge with less than 0.2% distortion.

STABLE-Less than 0.05% drift per 24 hours, less than 0.2% from100 0 to 400 C.

PLUS ALL LINES NEEDED FORDIGITAL AND ANALOGCOMPUTER INTERFACETHIS UNIT IS "INSTRUMENT QUALITY"-NOT A VIDEO SYSTEM FORENTERTAINMENT VIEWING

APPLICATIONS:MEDICALTissue analysisBlood analysisNeurological-X-Y movement analysisOptical Instrument data analysisOther analysis of visual dataINDUSTRIALAerial photography analysis-crop areas,

insect infestationIR Analysis-detect forest fires, direct robot

fire fightersBottle inspection-using polarized lightDimension analysis and control, area

measurement, displacement measurementPrinted pattern analysis and controlMissile trackingUNIVERSITYAnalysis of any visual information that can be

measured through variation in light intensityMedical researchPhysics researchLaser technology

Hamamatsu Corporation * 120 Wood Avenue * Middlesex, New Jersey 08846

Reader Service Number 44

CALENDARConferences in which the Computer Society isa sponsor or participant are indicated by theIEEE Computer Society logo; other conferencesof interest to our readers are also included. Forlisting in the Calendar Section, submit informa-tion by the first of the month preceding themonth of publication to Computer Magazine,5855 Naples Plaza, Suite 301, Long Beach,CA 90803.

C-1000OPTIONAL MODULES

A. M999 I/O Interface-Is for directconnection to an external computer.B. M998 I/O Buffer-Matches theinput and output signals.C. M1004 Video A/D Converter-Provides an 8 bit digital signal of all512 points along the verticalsampling line in 1/30 second.

D. M1003 Intensity Display-Thismodule displays the intensity along avertical, selectable line on theTV monitor.

E. M1002 Distortion Corrector-Improves the geometrical distortionto ± 0.02%.

F. M1001 Automatic SensitivityControl (ASC)-Expands thedynamic range of the camerato 1:3,000.

G. M1005 Video Slicer-Convertsthe video signal into a binary signalusing an internal or external selectedslice level.

H. M1006 Spare Board-This is auniversal board which the purchasermay use in development of hisown modules.

WRITE FOR 8-PAGE BROCHUREr-- mm=-mmmm=== m m

I Hamamatsu Corporation

1 120 Wood Avenue 1Middlesex, New Jersey 08846

NAME

COMPANY 1

I ADDRESS

ICITY

STATE ziP_Reader Service Number 44

JANUARY 1977

Fourth ACM SIGACT-SIGPLAN Symposiumon Principles of Programming Languages,January 17-19, Los Angeles, California. Con-tact Prof. Gerald J. Popek, Department of Com-puter Science, UCLA, Los Angeles, CA 90024.

Decision Support Systems, January 24-26,San Jose, California. Contact Eric Carlson, con-ference chairman, IBM Research Division, K54/282, 5600 Cottle Road, San Jose, CA 95193;(408) 256-6431.

Fifth Annual ACM Computer Science Con-ference and SIGCSE Symposium, January31-February 3, Atlanta, Georgia. Contact Prof,Vladimir Stamecka or John Goda, School ofInformation and Computer Science, GeorgiaInstitute of Technology, Atlanta, GA 30332.

FEBRUARY 1977

Distributed Data Processing, February 1-4,New York, New York. Contact Department PR,AIIE Seminars, P.O. Box 3727, Santa Monica,CA 90403; (213) 450-0500.

10th One-Day Technical Symposium, Feb-ruary 4, (date change) Los Angeles, California.Contact Los Angeles Chapter of ACM, P.O.Box 90698, Los Angeles, CA 90009.

Medcomp 77, February 7-9, Berlin, Germany.Contact Prof. J. Anderson, Dept. of Medicine,Kings College Medical School, Denmark Hill,London SE5 8RX; 01-274 6222.

1977 Winter Convention on Aerospace andElectronics (WINCON 77), February 7-9, NorthHollywood, California. Contact WINCON 77,5500 Canoga Ave., Woodland Hills, CA 91364.

International Security Conference, February7-9, Los Angeles, California. Contact ExecutiveDirector, International Security Conference, 2639S. LaCienega Blvd., Los Angeles, CA 90034;(213) 836-5000.

Life Cycle Management for ADP Systems,February 7-9, Washington, D.C. Contact Dept.PR, AIIE Seminars, P.O. Box 3727, Santa Mon-ica, CA 90403; (213) 450-0500.

IEEE International Solid-State Circuits Con-ference, February 16-18, Philadelphia, Penn-sylvania. Contact Lewis Winner, 152 W. 42ndSt., New York, NY 10036.

1977 Winter Meeting for ADCIS, February 22-24, Newark, Delaware. Contact Fred Hofstetter,Department of Music, University of Delaware,Newark, DL 19711; (302) 738-2497.

&jj Microprocessors and Design Automa-'~' tion, February 24-25, San Francisco, Cali-fornia. Sponsored by the TC on Design Auto-mation of the Computer Society. Contact Dr.W. M. vanCleemput, Stanford University, DigitalSystems Labs., Stanford, CA 94305.

g Simulation Technical Committee Work-shop, February 28, San Francisco, Cali-

fornia. Special workshop held in conjunctionwith COMPCON 77 Spring. Contact the IEEEComputer Society, P.O. Box 639, Silver Spring,MD 20901.

g COMPCON Spring 77, February 28-March3, San Francisco, California. Contact

COMPCON Spring 77, P.O. Box 639, SilverSpring, MD 20901.

AIIE On-Line Systems and Data Base Systems,February 28-March 4, Chicago, Illinois. Thetwo-conference program information is availablefrom AIIE Seminars, Dept. PR, P.O. Box 3727,Santa Monica, CA 90403; (213) 450-0500.

MARCH 1977

Material Handling Systems and Controls Con-ference, March 2-3, Atlanta, Georgia. ContactMaterial Handling Systems and Controls Con-ference, The Material Handling Institute, Inc.,c/o Shea Management, Inc., 1326 Freeport Road,Pittsburgh, PA 15238; (412) 782-1624.

44The New Computer Science and En-gineering Curricula, March 4 (formerly

scheduled for February 28), San Francisco, Cali-fornia. Contact David Rine, general chairman,Computer Science Dept., University of Texas-San Antonio, San Antonio, TX 78285.

Southeastern Symposium on SystemTheory, March 7-8, Charlotte, North Caro-

lina. Contact Mike Allen, University of North Caro-lina, Engineering Analysis and Design Dept.,Charlotte, NC 28223.

g Tenth Annual Simulation Symposium,March 16-18, Tampa, Florida. For further

information write Ira Kay, P.O. Box 22573,Tampa, FL 33622; (813) 839-5201.

Industrial Applications of Microprocessors,March 21-23, Philadelphia, Pennsylvania. Con-tact S.J. Vahaviolos, Engr. Research Ctr., West-ern Electric Corp., POB 900, Princeton, NJ08540.

Continued on p. 81

79

I .'I

6 Fifth Data Communications Symposium:September 27-29, 1977, Snowbird, Utah.

Jointly sponsored by the Computer Society, theACM, and the IEEE Communications Society,the theme of the conference is "The PathToward Widespread Use of Networks." Paperson related topics in data communications areinvited. Submit four copies of a completedpaper and a 500-word summary. Include name,address, phone number and affiliation. Sendby March 15, 1977, to Frank E. Heart, BoltBeranek and Newman Inc., 50 Moulton St.,Cambridge, MA 02138. Authors of selectedpapers will be notified by May 1, 1977. All ac-cepted papers will be published in the confer-ence proceedings.

First Annual Rocky Mountain Symposiumon Microcomputers: Systems, Software,Architecture: August 31-September 2, 1977,Fort Collins, Colorado. Papers are solicited inthe areas of numerical and systems software,distributed micro systems, and microcomputersystems architecture. Send three copies of thepaper, with title, abstract, author's address, andtelephone number, by March 15, 1977, to SteveMcCormick, Department of Mathematics, Colo-rado State University, Fort Collins, CO 80523;(303) 491-5763.

Call for papersfor Computer

COMPUTrERmagazine

The following special issues of Computerare being organized:

1977

February: Microcomputer ArchitectureMarch: Hobby/Home ComputersApril: SimulationMay: Stack MachinesJune: Computer Hardware Description Lan-guages

July: Distributed ProcessingAugust: Image ProcessingSeptember: MicroprocessorApplicationsOctober: M itary ComputersNovember: Computer NetworkingDecember: System Programming Languages

To be considered for a special issue, papersshould be submitted not later than 5 monthsprior to the date of the issue.

Besides theme-related papers, we're alsolooking for papers that survey recent importantdevelopments across the breadth of the field,describe particular developments from a tutor-ial point of view, or explore application areas.Submit all manuscrupts (four complete

copies including illustrations and referencesor bibliography) to our technical editor: Dr.Jack D. Grimes, Tektronix, Inc., MS 60-456,Beaverton, OR 97077.

A format guide is available from the Com-puter Society Publications office. Circlenumber 45 on the reader service card, p. 85,to obtain a copy.

1977 International Conference on ParallelProcessing: August 23-26, 1977, Bellaire,

Michigan. Both regular and short papers willbe accepted. The deadline for submitting papersis March 15, 1977. For regular papers, fourcopies of a 1 00-word abstract and a 1,000-wordsummary are required. Submission of full text inlieu of summary is encouraged. For short papers,authors should submit four copies of a 1 00-wordabstract and a summary of 300-500 words.Submit papers with proper identification, includ-ing phone number, to Prof. J.L. Baer, Depart-ment of Computer Science, University of Wash-ington, Seattle, WA 98195; (206) 543-9344or 543-1695.

^ COMPCON 77 Fall: September 6-9, Wash-ington, D.C. Quality papers are solicited in

the areas of hardware, software, system design,and application. Prospective contributors shouldsubmit an informal digest (four copies) of ap-proximately 1000 words by April 1, 1977, notifi-cation will be made by May 2, 1977. (See De-cember Computer, p. 39, for more specific in-structions.) Submit digest to Paul Skartvedt, pro-gram chairman, Energy System Planning Divi-sion, Bldg. WI, Room 3426, 7600 Colshire Dr.,McLean, VA 22101; (703) 893-2000, Ext. 2327.

adi Sixth Texas Conference on Computing' Systems: November 14-15, 1977, AustinTexas. Subjects: very large mass storage sys-tems, very large data bases, computer hardwareengineering, microprocessors, minicomputers,intelligent subprocessors, operating systems,and software engineering. Submit one-page ab-stracts by April 1, 1977, and four copies of thepaper by June 1, 1977, to Prof. Edward W.Thompson, Department of Electrical Engineer-ing, University of Texas, Austin, TX 78712.

Third International Conference on Very LargeData Bases: October 6-8, 1977, Tokyo, Japan.Papers relevant to design, system architecture,system analysis and evaluation, and large-scale applications are desired. Send five copiesof complete paper by April 15, 1977, to Prof.Alan Merten, program chairman, School ofBusiness Administration, University of Michi-gan, Ann Arbor, Ml 48109; Prof. Setsu Ohsuga,asian coordinator, Aerospace Research Insti-tute, University of Tokyo, Tokyo 113, Japan; orDr. H. Schmutz, european coordinator, IBMHeidelberg Scientific Center, Tiergartenstrasse15, 6900 Heidelberg, West Germany.

20th Midwest Symposium on Circuits andSystems: August 15-16, 1977, Lubbock, Texas.Research or tutorial papers on any aspect ofcircuit theory, communication, control systems,or computer-aided design for presentation at thesymposium and publication in proceedings, areinvited. Authors should submit, in duplicate, a300-word summary of their contributions,headed by title, name(s) of author(s), and af-filiation(s) prior to May 2, 1977, to Professor R.Saeks or Professor K.S. Chao, Department ofElectrical Engineering, Texas Tech. Univer-sity, Lubbock, TX 79409. Notification will besent by May 23, 1977. Accepted papers will berequested for submittal by June 17, 1977.

2nd International Symposium on the OperatorTheory of Networks and Systems: August 17-19, 1977, Lubbock, Texas. Papers are solicitedon any aspect of mathematical network and/orsystem theory. Submittals should be addressedto Prof. R. Saeks (address above) or Prof. N.Levan, Department of Systems Science, Uni-versity of California, Los Angeles, CA 90024.Dates and submittal information can be found inabove listing.

~~CALENDAR

Continued

L t ~~~~~fromp 79

Medical Data Processing Symposium, March22-25, Toulouse, France. Contact IRIA -Sym-posium Secretariat, External Relations Depart-ment, Domaine de Voluceau, Rocquencourt,B.P. 105, 78150 Le Chesnay, France.

& Fourth Annual Computer ArchitectureW Symposium, March 23-25, College Park,Maryland. Contact Dr. Bruce Wald, conferencechairperson, at the Communications ScienceDiv., Naval Research Lab, 4555 Overlook Ave.,Washington, D.C. 20390.

Interface '77, March 28-30, Georgia WorldCongress Center, Atlanta, Georgia. ContactSheldon G. Adelson or the Interface office,160 Speen St., Framingham, MA 01701; (800)225-4620.

Computer Systems and Technology, March29-31, Sussex, England. Contact ConferenceDept., I.E.R.E., 8-9 Bedford Square, LondonWC1 B 3RG; 01 -637 2771.

APRIL 1977

Developments in Semiconductor Micro-lithography II, April 3-7, San Jose, California.Contact SPIE, Box 1146, Palos Verdes Estates,CA 90274.

Microcomputer-77, April 6-8, LincolnPlaza Forum, Oklahoma City, Oklahoma.

Contact Dr. S. C. Lee, School of Electrical En-gineering, University of Oklahoma, Norman,OK 73019.

& High Speed Computer and Algorithm Or-ganization, April 13-15, University of Illinois

at Urbana-Champaign. Contact Edward C. Kalb,University of Illinois Office of Continuing Educa-tion and Public Service, 116 Illini Hall, Univer-sity of Illinois, Champaign, IL 61820.

10th Annual Interface of Computer Scienceand Statistics Sy'mposium, April 13-15,Gaithersburg, Maryland. Contact David Hogben,A338, Administration Building, NBS, Washing-ton, D.C. 20234; (301) 921-2315.

Interactive Design Systems 1977, April 13-15, Stratford-upon-Avon, England. Contact theComputer Aided Design Centre, MadingleyRoad, Cambridge, England CB3 OHB; 022363125.

Law Enforcement/Data Processing Manage-ment, April 18-19, Washington, D.C. ContactWilliam D. Ellingsworth, public affairs officer,International Assoc. of Chiefs of Police, 11 First-field Road, Gaithersburg, MD 20760; (301)948-0922.

SCS Conference on Transportation, April18-20 (date change), Ann Arbor, Michigan. Con-tact James Bernard, Dept. of ME, MichiganState Univ., East Lansing, Ml 48823; (517) 355-5131.

January 1977 81

ilnternatlonal Purdue Workshop on Indus-trial Computer Systems, American Re-

gional Meeting, April 18-21, West Lafayette,Indiana. Contact Dr. T.J. Williams, 102 MichaelGolden, Purdue University, West Lafayette, IN47907; (317) 494-8425.

Information Display International Symposium,April 19-21, Boston, Massachusetts. Contactthe Society for Information Display, 654 N. Se-pulveda Blvd., Los Angeles, CA 90049.

ELECTRO 77, April 19-21, New York City, NewYork. Contact Joseph Antonaccio, conventionmanager, Electro 77, cdo IEEE, 345 E. 47th St.,New York, NY 10017.

c Picture Data Description and Manage-ment, April 21-22, Chicago, Illinois. Con-

tact K.S. Fu, Purdue University, School of EE,Lafayette, IN 47907.

Circuits and Systems International Sym-posium, April 25-27, Phoenix, Arizona. Con-tact W.G. Howard, Motorola Integrated Cir-cuits Center, MS/MR, P.O. Box 20906, Phoenix,AZ 85306.

15th Annual AEDS Convention, April 25-29,Fort Worth, Texas. Contact Don Offerman, P.O.Box 224, Austin, TX 78767.

MAY 1977

1977 ACM/SIGACT Symposium of Theory ofComputing, May 2-4, Boulder, Colorado. Con-tact Emily P. Friedman, Symposium on Theoryof Computing, 3532C Boelter Hall, ComputerScience Department, UC Los Angeles, CA 90024.

1977 Offshore Technology Conference, May2-5, Houston, Texas. Contact Offshore Tech-nology Conference, 6200 N. Central Express-way, Dallas, TX 75206.

EUROCON 77, European Conference on Elec-trotechnics, May 3-6, Venice, Italy. Contactthe EUROCON 77 Office, c/o AEI, Viale Monza259, 20126 Milan, Italy.

1977 IEEE Intemational Conference on Acous-tics, Speech, and Signal Processing, May9-11, Sheraton-Hartford Hotel, Hartford, Con-necticut. Contact Ronald Crochiere, Bell Labora-tories, Murray Hill, NJ 07974; (201) 582-4623.

27th Electronic Components Conference,May 16-18, Arlington, Virginia. Contact CharlesM. Tapp, Sandia Labs, Dept. 2150, Albuquerque,NM 87115.

ACM Third Workshop on Computer Architec-ture for Non-Numeric Processing, May 17-18, Syracuse, New York. Contact P. Bruce Berra,conference chairman, 441 Link Hall, SyracuseUniversity, Syracuse, NY 13210; (315) 423-2826.

23rd Annual ISA Analysis InstrumentationSymposium, May 17-19, Charleston, West Vir-ginia. Contact Earl G. Trawick, Union CarbideCorp., Box 8361, S. Charleston, WV 25303;(304) 747-4482.

NMA.26th Annutal Conference and Exposition,May 17-20, Dallas, Texas. Address correspond-ence to Dynamics of Micrographics, NationalMicrographics Association, 8728 ColesvilleRoad, Silver Spring, MD 20910.

82

Trends and Applications Symposium:Computer Security and Integrity, May

19, Gaithersburg, Maryland. Contact MarshallAbrams, B212, Technology Bldg., NationalBureau of Standards, Washington, D.C. 20234;(301) 921-2601.

Seventh Annual AIPR Symposium, May 23-24, College Park, Maryland. Contact Ruth E.Pansar, Electronic Industries Assoc., 2001 EyeSt., N.W., Washington, D.C. 20006.

International Minicomputers-Microcom-puters-Microprocessors '77, May 24-26,Palais de Exhibitions, Geneva, Switzerland.Contact Joseph C. Maurer, Industrial and Scien-tific Conference Management, 222 W. AdamsSt., Chicago, IL 60606; (312) 263-4866.

i Seventh International Symposium onMultiple-Valued Logic, May 24-27, Char-

lotte, North Carolina. Contact Prof. C. MichaelAllen, EAD Dept., University of North Carolina,Charlotte, NC 28233; (704) 597-2302.

Power Industry Computer Applications(PICA), May 24-28, Royal York, Toronto, On-tario, Canada. Contact L.M. Gordon, 24 Wimble-ton Road, Islington, Ontario, M9A, 3R8, Can-ada.

g, Seventh International Symposium onMultiple-Valued Logic, May 25-27, Char-

lotte, North Carolina. Contact Mike Allen, En-gineering Analysis and Design Dept., Univer-sity of North Carolina, Charlotte, NC 28223.

1977 Spring Meeting and Star Symposium-SNAME, May 25-27, San Francisco, Ca'-fornia. Contact Arthur J. Haskell, c/o MatsonNavigational Co., 100 Mission St., San Fran-cisco, CA 94105; (415) 982-7700.

1977 Region Six Conference of IEEE, May25-27, Portland, Oregon. Contact Patrick P.Fasang, Multnomah School of Engineering,University of Portland, 5000 N. WilliametteBlvd., Portland, OR 97203.

Symposium on Minicomputers and Large-Scale Computations, May 29-June 2, JointConference of the American Chemical Societyand the Chemical Institute of Canada, Mont-real, Canada. Contact Prof. Peter Lykos, IllinoisInstitute of Technology, Chicago, IL 60616; (312)567-3430.

JUNE 1977

Sixteenth Annual Technical Symposium,June 2, Gaithersburg, Maryland. ContactBryce L. Elkins, Computer Sciences Corp.,400 Army Navy Dr., Arlington, VA 22202.

Systems and Software: Operational Reli-ability and Performance Assurance, June2, Gaithersburg, Maryland. Contact Stewart Kat-zke, A265, Technology Bldg., National Bureau ofStandards, Washington, D.C. 20234; (301) 921-3861.

& Pattern Recognition and Image Proc-essing, June 6-8, Rensselaer Polytechnic

Institute, Troy, New York. Conference is spon-sored by the Machine Intelligence and PatternAnalysis Committee of the Computer Society.Contact Prof. Herbert Freeman, general chair-man, -Dept. of Electrical Systems Engineering,Rensselaer Polytechnic Institute, Troy, NY12181; (518) 270-6311.

MIMI '77, June 7-9, Zurich, Switzerland. Con-tact MIMI '77, P.O. Box 354, 8053, Zurich, Switz-erland.International Conference on Communica-tions, June 13-15, Chicago, Illinois. ContactE.J. Glenner, Systems Research, GTE Auto-matic Elec. Labs., P.O. Box 17, Northlake, IL60164.

e NCC, June 13-16, Dallas, Texas. For in-formation on the 1977 National Computer

Conference, contact Dr. Portia lsaacson, Uni-versity of Texas, P.O. Box 688, Richardson, TX75080.

14th Design Automation Conference,June 20-22, New Orleans, Louisiana. Con-

tact Design Automation Conference, P.O. Box639, Silver Spring, MD 20901.

World Electrotechnical Congress, June 21-25, Moscow, U.S.S.R. Contact Joseph E. Casey,TAB Office, Institute of Electrical and ElectronicsEngineers, Inc., 345 E. 47th St., New York, NY10017.

Joint Automatic Control Conference, June 22-24, San Francisco, California. Contact J.S. Me-ditch, University of California, Irvine, CA 92717.

A FTCS-7, Seventh Annual InternationalSymposium on Fault-Tolerant Comput-

Ing, June 28-30, Los Angeles, California. Forinformation on the symposium, sponsored eachyear by the IEEE Computer Society's TechnicalCommittee on Fault-Tolerant Computing, con-tact Prof. Arthur D. Friedman, Dept. of ElectricalEngineering and Computer Science, USC, LosAngeles, CA 90007.

JULY 1977Summer School 1977: Microprocessors andApplications, July 11-29, Le Breau, France.Sponsored by CEA, EDF, and IRIA. ContactSecretariat des Ecoles, D'ete 1 Ave. du GeneralDe Gaulle 92141, Clamart, France.

Computer-Aided Design of, Electronic andMicrowave Circuits and Systems, July 12-14, University of Hull, England. Contact theConference Secretariat, Department of Elec-tronic Engineering, University of Hull, Hull,England, HU6 7RX.

CAD ED: International Conference and Exhibi-tion on Computer Aided Design Education,July 13-15, Middlesbrough, Cleveland, Eng-land. Contact Conference Secretary, CAD ED,Teesside Polytechnic, Middlesbrough, Cleve-land, England; Middlesbrough 44176.

a Summer Computer Simulation Confer-once, July 18-20, Chicago, Illinois. Con-

tact Robert D. Brennan, Summer ComputerSimulation Conference, 10775 Willowbrook Way,Cupertino, CA 95014.

Fourth Annual Conference on ComputerGraphics and Interactive Techniques, July20-22, San Jose, California. Contact StephenLevine, Lawrence Livermore Laboratory, P.O.Box 808, Livermore, CA 94550; (415) 447-1100,X3360.

Institute of Managemont Science XXIII Inter-national Conference, July 25-27, Athens,+Greece. Contact Prof. Z. S. Zannetos, MITSloan School, 50 Memorial Dr., Cambridge,MA 02139.

COMPUTER

1977 International Conference on CrimeCountermeasure Science and Engineering,July 26-29, Oxford, England. Contact GeorgeC. Byrne, Stanford Research Institute, MenloPark, CA 94025.

4 Fifth Data Communications Symposium,'~' September 27-29, Snowbird, Utah. Con-tact Joe Marchese, IBM Corp., 18100 FrederickPike, Gaithersburg, MD 20760.

OCTOBER 1977AUGUST 1977

IFIP Congress 77, August 8-12, Toronto,Canada. Contact IFIP Exhibition 77, CanadianInformation Processing Society, 212 King St.West, Suite 501, Toronto, Ontario, CanadaM5H 1K5.

Fifth Symposium on the Simulation of Com-puter Systems, August 9-11, NBS, Gaithers-burg, Maryland. Contact Paul F. Roth, NBS,Room B250 Technology, Washington, D.C.20234; (301) 921-3545.

Third Euromicro Symposium on Microproc-essing and Microprogramming, October 3-6, Amsterdam, The Netherlands. Contact J.D.Nicoud, LCD EPFL, Bellerive 16, CH-1007,Lausanne, Switzerland.

Third International Conference on Very LargeData Bases, October 6-8, Tokyo, Japan. Con-tact Professor Stuart Madnick, MIT, Sloan Schoolof Management, 50 Memorial Dr., Cambridge,MA 02139.

Design Automation Workshop, October 19-21, Michigan State University. Contact HarryM. Taxin, Computer-Aided Design Dept., HughesAircraft Company, Culver City, CA 90230; (213)391-071 1 Ext. 2273 or 4186.

NOVEMBER 1977

MIDCON, November 8-10, Chicago, Illinois.Contact Electrical and Electronics ExhibitionsInc., 999 N. Sepulveda Blvd., El Segundo, CA90245; (213) 772-2965.

+ Sixth Texas Conference on ComputingSystems, November 14-15, University of

Texas. Contact Prof. James Sneeringer, Dept.of Computer Science, Painter Hall 3.28, Uni-versity of Texas, Austin, TX 78712.

Midwest Symposium on Circuits and Sys-tems, August 15-16, Lubbock, Texas. ContactMidwest Symposium, P.O. Box 4439, Texas Editorial Schedule for. . .Tech University, Lubbock, TX 79409.

IEEE TRANSACTIONS ONInternational Symposium on Computer Per-formance Modeling, Measurement, and SOFTWARE ENGINEERING-Evaluation, August 16-18, Yorktown HeightsNew York. Contact Dr. Hisashi Kobayashi, IBM Editor: Prof. Raymond T. Yeh, Dept. of Computer Science, Physics Bldg. 3.28, University ofResearch Center, Yorktown Heights, NY 10598; Texas, Austin, TX 78712(914) 945-1105.

2nd International Symposium, on the Oper- March 1977ator Theory of Networks and Systems, August17-19, Lubbock, Texas. Contact 2nd Interna- Languagestional Symposium, P.O. Box 4439, Texas Tech "Production Systems: A Formal Notation for Defining the Syntax and Translation of ProgrammingUniversity, Lubbock, TX 79409. Languages," Henry F. Ledgard

MethodologyInternational Conference on Computer Ap- "Proving the Correctness of Multiprocess Programs," Leslie Lamportplications in Developing Countries, August "A General, Verifiable Iterative Control Structure," J. Mack Adams22-25, Bangkok, Thailand. Contact Dr. Fook Loy Analysis of AlgorithmsNg, secretary ICCA, Asian Institute of Tech- "An Analysis of Swapping Policies in Virtual Storage Systems," W. Chiu and We-Min Chownology, P.O. Box 2754, Bangkok, Thailand.

Experience

&1977 International Conference on Parallel "Experience with Modular Concurrent Programming," Per Brinch-Hansen

W Processing, August 23-26, Bellaire, Michi- Pattern-Recognition Software (Special Collection)gan. Contact Dr. Charles S. Elliott, College of Guest Editorial, Allen KlingerEngineering, Wayne State University, Detroit, "Interactive Pattern Recognition: A System and Data Structure," Raouf F. H. FaragMl 48202; (313) 577-3812. "Esp3: A Language for Pattern Description and a System for Pattern Recognition," Linda G. Shapiro

and Robert J. Baron"Information Retrieval Based on Touch-Tone Encoded Keys," Stuart B. Soffer and Richard B.First Annual Rocky Mountain Symposium on Friedman

Microcomputers: Systems, Software, Archi-tecture, August 31-September 2, PinegreePark Retreat, Fort Collins, Colorado. Contact I rANSACT O CO PUMike Andrews, Department of Electrical En- IEEE TRANSACTI ON COMPUTERSgineering, Colorado State University, Fort Col- Editor: Dr. Richard Merwin, U.S. Army Safeguard System Office, 1300 Wilson Blvd., Arlington, VA 22209lins, CO; (303) 491-5767.

SEPTEMBER 1977 February 1977-Special Issue on Parallel Processors and ProcessingForeword

IFAC Control and Management of Integrated "Parallel Processors and Processing: An Introduction," T. FengIndustrial Complexes, September 6-8, Tou-louse, France. Contact M.G. Singh, L.A.A S.- ApplicationsC.N.R.S. 7, avenue du Colonel-Roche, 31400 "Parallelism in Al Problem Solving: A Case Study of Hearsay II," R. D. Fennell and V. R. LesserToulouse, France. Architecture

"The Associative Linear Array Processor," C. A. Finnila and H. H. Love, Jr.COMPCON Fall 77, September 6-9, Wash- "On a Varistructured Array of Microprocessors," G. J. Lipovskiington, D.C. Contact COMPCON Fall 77, "A Data Flow Multiprocessor," J. Rumbaugh

P.O. Box 639, Silver Spring, MD 20901; (301) Matrix Algorithm439-7007. "A Parallel QR Algorithm for Symmetric Tridiagonal Matrices," A. H. Sameh and D. J. Kuck

Interconnection NetworksSymposium on Data Analysis and Informa- "Analysis Techniques for SIMD Machine Interconnection Networks and the Effects of Processortics, September 7-9, Rocquencourt, France. Address Mask," H. J. SiegelContact IRIA Symposium Secretariat, ExternalRelations Department, Domaine de Voluceau, MemoryOrganizationRocquencourt, B.P. 5, 78150 Le Chesnay, Organization of Semiconductor Memories for Parallel-Pipelined Processors," F. A. Briggs andFrance. E. S. Davidson

Wescon, September 19-21 (date change), San For subscription information on Transactions, circle reader service number 46 on p. 85.Francisco, California. Contact W.G. Weber Jr.,Wescon, 999 N. Sepulveda Blvd., El Segundo,CA 90245.

January 1977 83