* - PET interfaced to an S-100 bus and a demonstration ademonstration and bus S-100 an to interfaced PET - * individuals to open is Society the in Membership , , ■ W F -' 4537 8080. (415)327 f i ' T -0 BS SR' OIT (10U) - (S100BUS) SOCIETY USERS' BUS 5-100 E TH ~ mto aot oh adae n sfwr cn be can software and hardware both about mation • Canada. and USA throughout - » CP/M Users' Group. Users' » CP/M ticipation in a Club buy of the University of California California of University the of buy Club a in ticipation infor- exchanged. where place a as serve meetings Our systems. Shack, Radio Ave. Payne p.m. 7:30 Wednesdays analog conversion. analog the and 8080 the for Pascal Portable Diego San at computer based bus S-100 operating hav&. who Lincoln 1099 Savings, Bell Jose. San in of illow, Room W at Community the meeting additional Request meeting. HCC group. next the at coordinate will Shack Radio schedule. at firm Meets - GROUP USERS 80 TRS the in reported be ill w it and group your about tion Shop of Palo A lto for meeting schedule, telephone telephone schedule, meeting for lto A Palo of Shop digital-to- and analog-to-digital of concepts f o the from diskettes on software the as well as Z80, VanDerKoor Marvin — President GROUP p.m. USERS PET 7:30 at in month Meets f o Tuesday - first USERS TPC SW & USERS PROTO I AM con­ to week in early Call 247-5300: (408) Campbell, chapters Other Peninsula Building. S.F. Physics at" Stanford - p.m. 1 at (SOLUS) SOCIETY USERS' SOL a­ inform me Send them. about ation inform any have et potl o tetid hrdya :0pm in p.m. 7:30 at Thursday third the on pnonthly Meets beginning month each of Sunday third meets Chapter NORTH STAR USERS GROUP - Contact Byte Byte Contact - GROUP USERS STAR NORTH N ewsl fetter. Room 210t Brànnon Hall; University of Santa Clara, Clara, Santa of University Hall; Brànnon 210t Room not do I but exist more many doubt No Area. Bay Users Group UsersGroup NEWSLETTER Computer x This js a short list of user groups that meet in the the in meet that groups user of list short a js This urn sfwr poet o itrs icue par­ include interest of projects software Current eet adae eosrtos ae nldd a included have demonstrations hardware Recent i 4 - ' ' Vlme — su 5 uutSpebr 1978 August-September 5 — Issue 3 e Volum ■ * * " Bob Reiling Bob gestions fo r this group, please send your name, name, Dave your to send comments please any and group, number or phone this address, computers r fo gestions using being is anyone group This for - GROUP started USERS CROMEMCO ulse i a ora fr s or installments, four as be form to manual, journal a in a implementation and developing is published group technical The Area. Bay major the in meetings evenings. 321-5998, (415) call or 94303, CA lto, A sug­ or ideas having or interested Anyone products. FORTH INTEREST GROUP — Holding occasional occasional Holding — GROUP Palo E. INTEREST 27, FORTH Apt. Street, O'Keefe E. 402 Dameron, coe 1 SA uditorium A SLAC 11 October ed Wth h NWLTE f announce­ r fo be may NEWSLETTER locations the other Watch at held. meetings dditional A uditorium A Fairchild 27 September w ill be published in the NEWSLETTER if time time if NEWSLETTER notice the advance in occur, published does be change ill acancel­ w or uditorium A If change to Fairchild subject lation. are dates ll A ments. Location 20 December Date permits. uditorium A Fairchild uditorium A SLAC 29 November 8 November are You dates. scheduled previously to The dates are listed in the table in addition addition in table the in listed are dates The software for display at the meetings. meetings. the at display and for equipment your software bring to encouraged however: commercial transactions may not not may transactions commercial which areahowever: lobby large a has Auditorium scheduled. been just have Club Computer ecmltdo Safr premises. Stanford on Fairchild completed be invitation. this are stores in computer included and Manufacturers is well suited for display. One caution, caution, One display. for suited well is Additional meetings of the Homebrew Homebrew the of meetings Additional Additional Meetings Additional 1978 Meeting Schedule Schedule Meeting 1978 Scheduled :0pm-03 pm. -10:30 m p 7:00

available by subscription. The group cannot answerwith any 110 or 300 baud Bell 103A type modem all mail at this time but would appreciate suggestionsequipped terminal or computer. As soon as the con­ and information about FORTH. Contact FORTH nection is made, send several carriage returns; after INTEREST GROUP, 787 Old County Road, San this the system is self teaching. Carlos, CA 94070. If you write it would be a good NORTHERN CALIFORNIA COMPUTER EDU­ idea to include a stamped and self-addressed envelopeCATORS — This group is sharing ideas about so that when time permits the group can easily sendcurriculum, textbooks, instructional material, funding, a reply. hardware, software, non-math/science applications, OSI OWNERS — No local group for this equipmentand other thinks of interest. Contact Don McKell, yet; however, several systems are running in theIndependence Bay High School, 1776 Education Park Area. If people with OSI systems will send me theirDrive, San Jose, CA 95133. Telephone (408) names, I w ill make a list and send it to each of the926-1776. other people. Include a brief description of your hardware and software. Mail to Robert Reiling,More information about each group is usually avail­ Attention OSI, P.O. Box 626, Mountain View, CA able at Homebrew Computer Club meetings. Group 94042. members are regular attendees at Homebrew Com­ puter Club meetings. Most if not all of the above PCNET — Not exactly a users group but the Baygroups formed through contacts developed at Home­ Area Community Bulletin Board System (DBBS).To brew Computer Club meetings. It is another reason use the Bay Area CBBS, telephone (408) 246-2805to support the Homebrew Computer Club. □

Letters To The Editor

Dear HCC, Dear HCC, A message fo r 8080-8085 users about assemblers — if I'm currently in the final stages of constructing my own you have none, mine is better than that! It's a One-Pass8080A based system from an article in the March 78 ussie Macro Assembler and fits into 1K of RAM or ROM (and it of Kilobaud. seems to shrink every time I make additions). The latest I'm curious about the benefits of belonging to your club version and all updates cost $5 (towards the care and feeding but my real interest is in locating someone who has already of my 8080 Homebrew). Feel free to BS a little when writing b u ilt the same system as the one I'm working on. — I'm more into computers than selling. If you have the answer to either or both of my questions Steve Kelley please let me know. 9506 Peach St. Oakland, CA 94603 Thank you very much.

Robert A. Bobbio Dear HCC, 716 N. Geneva St. Bob, myself (WA6TMF) and Dale Mortensen (K6IMX) are Glendale, Calif. 91206 in the process o f setting up a VHF (2M) repeater fo r RTTY Can anyone help w ith the 8080A system? —Editor and Computer use. The repeater location will be on Sugarloaf Peak, a few miles East of Napa (about 1600 ft. elevation). This will be an "Open" repeater, access will be by standard Dear HCC, RTTY tones (2125 Hz, 2295 Hz). I will send you full details I was interested to read, in the March 1978 issue of BYTE, on the machine when we get it on the air. I think we will have of the activities of Homebrew Computer Club. coverage over most of the Bay Area and also into Sacramento. At the National Computing Centre we are conscious of Thanks and 73. the inform ation and training needs relating to m icrocom puter Richard Slavens systems and we are currently expanding our traditional com- 1540 I St. pting activities into these new areas. In addition, though, since Napa, CA 94558 we fu lfill a central role in computing in the UK, it is necessary

Robert Reiling Eclitor-in-Chief The NEWSLETTER is published regularly by the Brent S ack...... Graphics Homebrew Computer Club. P.O. Box 626, Mountain View, CA 94042

2 to be able to comment and give advice relating to all aspects of interest to them: we are at work here on getting BCPL and computing and this includes "personal computing." PASCAL up and running for the 9900.

As you may gather, my purpose in writing is to learn Thank you for your good offices as intermediary. We further of your activities. In particular, I should appreciate a hope that we may soon have a reply from you, or from your copy of your newsletter since it would appear to have two members. relevance far outside of Silicone Valley. W ith our best wishes. Yours sincerely, One activity here, which may be of interest to your mem­ B.W. Powers bers, relates to the educational user o f . The P.O. Box 177 British Computer Society has formed a National Working Petersham NSW 2049 Australia Party which is to examine emerging technology and its impact Here is an interesting opportunity for 9900 system users. on education. In part this relates to implications on computing -E d ito r curricula, but much is to do with the effective use of micro­ computers in schools. I am chairman of this working party and members are from all over the UK (one advantage of being Dear HCC, geographically small). We can thus say that we are in touch We are a remote but aggressive com m unity in northern with the variety of opinion throughout this country. AmongNew Hampshire. Several o f us here w ould like to form a our activities we are looking at the implications for teacher club for the people in the community. Rather training — and guidelines are being prepared. than re-invent the wheel, would it be ok if we were to become Possibly some exchange of ideas o f experiences could be a chapter of your Club? o f interest to your readers. At the present time we are eight micro-computer enthusi­ Yours sincerely, asts. We have just completed the firs t class in BASIC and J. J. Turnbull micro-computer operation at the local Vocational Technical The National Computing Centre Limited College; ages ranged from the 20’s to the 50's for the members Oxford Road of this class. The hardware in the class comprised one PET Manchester M 1 7ED 2001, tw o Polymorphics (one w ith dual disk drive), and on England loan, two TRS-80s. Our instructor, Al Brunelli, has his masters (electronics) out of Dartmouth College which is two hours Dear HCC, drive from Berlin. Al would be a member of our HCC/nNH I read w ith great interest your article in "Sense Line" in (northern New Hampshire). the March issue of INTERFACE AGE (page 45), and in par­ ticular I noted that your Club has two members with a 9900 A classmate who is a radio engineer up on Pine Mountain, system. Rene Foirier, w ill receive his PET, the second in the area, in the next week or less. We plan to have a store-front, public- I have a 9900 system, and would love to be in touch with participation type of organization to popularize every aspect other fellow-owners, to discuss problems, software, peripheral of homebrew computers. The PETS and the Polys will be used interfacing, and so on and so on. I am w riting to ask if you fo r these purposes (and TRS-80s). would be kind enough to put me in touch with your two 9900 members, either by giving me their names and addresses, We would like to become a chapter of an existing Club so that I can write to them, or telling them of my interest such as yours to benefit from the work already done by the (perhaps showing them this letter) so that they can write Club, to participate in the publication of the Club's existing to me. Newsletter, and to spread the theme which we believe your Club represents . . . micros for the people. Probably some of the most useful and interesting initial "swap" inform ation would be in the area o f peripherals and Please advise whether or not you think we might become interfacing, and software. We have not yet come across really a chapter of HCC. satisfactory units to use for our system for the printer, the Sincerely yours, VDU or monitor, and the mass storage device such as floppy Charley Reed disks. Have they got any recommendations here? What have they done about programming? One item that may be of Please keep us posted on your activities, Charley. —Editor

Personal Computers For Home, Office, O r Classroom Use— A De Anza Short Course Fall-1978

A comparative overview of the powerful and local computer clubs and stores. (The course w ill not versatile "personal computers" newly appearing include how to build or program computers.) on the market in the $500 to $5000 price range. The course will concentrate on how to select a personal Instructor Dr. Val Watson is a member of the computer that is best for you, how to buy it, and Computer Advisory Committee at NASA Ames how to make it do work for you in your home, office, Research Center and is teaching scientific applications or classroom. The course will include demonstrations of computers at San Jose State University. He uses a of several personal computers and inform ation on as an instructional aid in his class-

3 room, and he is conducting research on a prototypePhone (408) 732-4788, or office phone (415) "scientist's office computer" at Ames Research 965 6490. Center. The instructor stipend will be donated to the "Space Prospectors," a youth science group co-spon­ Class meets Wednesdays, November 8th through sored by: The Santa Clara Joint Council on Science December 13, at 8-10 PM in Forum 3. and Mathematics Education, The American Institute For additional information contact Dr. V.R.for Aeronautics and Astronautics, and NASA Ames Watson, 21366 Amulet Drive, Cupertino, CA 94014. Research Center. □

Benchmark CampaignGreg Dolkas

The benchmark campaign reported in the lasthad integer BASIC." Since I was on booth duty at Flomebrew Computer Club Newsletter set many a the Second West Coast Computer Faire at which he computerist to benchmark checking. I checked it ondid the tests, I know that we had our APPLESOFT my OSI system w ith BASIC in ROM and got times of floating point BASIC available. In fact, a single com­ about 5.5 seconds. Gene Wallis put his Sphere Systemmand would have summoned it from the disk. Mr. 340 with D.I.C. BASIC to work and it completed the Dolkas should have asked us for floating point BASIC program 13.33 minutes later. Fie also checked the if he didn't know how to get it up himself. SWTP BASIC w ith Programa Patch and obtained a I typed in his program on my APPLE II, and it time of 1.1 minutes. Other times reported from ran in about 6.3 seconds, as close as I could judge various sources: with an electronic stopwatch and my own response BASIC-E Standard 8080 IMSAI 25 seconds time. I put it into an outer loop, and ran it ten times, BASIC - IBM 5100 22 seconds to try to get greater accuracy. The entire program, DEC II (STS) less than 1 second outer loop and all, took one minute and one second. In APL 370/165 .012 seconds It seems that the APPLE is the fastest of all the microcomputers tested that had interpreted . Jeff Raskin and Peter Midnight sent letters to The printed answer was correct without any fudging update the information on the APPLE II and therequired. North Star Computers. Jeff Raskin Dear Bob, Our new North Star BASIC, Release 4, has become available since the benchmark program in your last newsletter, Volume 3 Issue 4, was run on Benchmark Program our computer. Although I agree with Mr. Dolkas that drag racing is a poor way to compare BASICs, I thought your readers might like to see the updated 10 FOR 1 = 1000001 TO 1000003 STEP 2 timings. 20 FOR D=3 TO SQR(I) STEP 2 30 IF I/D= I NT ( I/D ) THEN 60 8 digit software math — 10.8 sec. 40 NEXT D 14 digit software math — 21.0 sec. 50 PRINT I 8 digit hardware math — 3.6 sec. 60 NEXT I 14 digit hardware math — 4.0 sec.

These tests were run on our HORIZON computer The program finds the first prime number over 1 which uses a 4Mhz Z80A. But our BASIC will also million by trial and error. A test number is divided run in 8080 based machines. All arithmetic is doneby all of the odd numbers up to the square root of in packed BCD. the number. If none of them divides evenly, the num­ Thank you. Peter Midnight ber is a prime. This requires a BASIC with 6-7 digit accuracy and enough smarts to do FOR-NEXT loops, Customer Service take square roots, etc. Some machines tested did not North Star Computers, Inc. meet these requirements. The answer, by the way, is 1000003. Some machines print this as IE6 due to the Dear Home Brewers, way their print routines work, but if you print 1-1E6 Upon reading Mr. Dolkas' "Benchmark Campaign"at line 50 they will display the "3". I find that the APPLE II was not included since "it

4 A Report From Joe

This program w ill speak fo r itself! Joe Gauthier within the "total personnel policy" and will result is ready to supply a word package to the official in in "concept responsive hardware." need. Looking over the 100 pages of text I note we could expect “ third generation compatible mobility" If you don't like the words, just change them. A along with "time frame systematized management" suggestion is grouping the words in three groups of that has "incremental capability options." This of ten words each. Select the first word from group one, course provides "personnel contingency flexibility" the second word from group two, etc.

LIST 202 0 PRINT ORGANIZATIONAL"* 2021 RETURN 3 REMCOPYRIGHT by JOE GAUTHIER. UNLIMITED COPYING FOR PERSONAL USE 2022 PRINT MONITORED": 4 REMIS PERMITTED. ALL COMMERCIAL RIGHTS RESERVED. 2023 RETURN 10 Y=1 2024 PRINT rec ipr o c al "? 20 X=!:PRINT:PRINT:PRINT:REMNEW PAGE 202.5 RETURN 30 PRINT 100 PAGES OF OFFICI ALE7.F - PAGE ":Y 2026 PRINT SELF-ADJUSTING": 100 REMGENERATE THREE INTEGER RANDOM NUMBERS BETWEEN 1 AND 30 2.02.7 RETURN 140 PRINT:REMTHIS RESETS LINE 2028 PRINT DECREMENTED": 150 A=INT(RND(1)*30) 2029 RETURN 1£0 B=INT(RND(1)*30) 2030 PRINT transitional ": 170 C = I NT(R ND(1 )*30) 2031 RETURN 200 REMTEST TO MAKE SURF A,B,C APE ALL DIFFERENT 2032 PRINT INCREMENTAL": 210 IF B=A GOTO 150 2033 RETURN 220 IF C=A GOTO 170 2034 PRINT THIRD GENERATION": 300 REMTFST TO MAKE SURE THERE IS NO VERTICAL COINCIDENCE 2035 RETURN 310 IF OrA GOTO 150 2036 PRINT p o l ic y ": 320 IF R=R GOTO 160 2037 RETURN 330 IF S=C GOTO 170 2038 PRINT FLEXIBILITY": 400 REMUPDATE LAST PASS REGISTERS 2039 RETURN 410 Q=A• R=B :S = C 2040 PRINT CAPABILITY": 500 REMTHIS ROUTINE CONVERTS THE THREE RANDOM NUMBERS INTO WORDS 2041 RETURN 510 Z= A : GOS UB 550 2042 PRINT MOBILITY": 520 Z=B:GCSUB 550 2043 RETURN 530 Z = C;GOSUB 550 20 44 PRINT PROGRAMMING" : 540 GOTO 3000 2045 RETURN 550 REMTHIS ROUTINE PICKS OUT THE PROPER ON GOTO LINK 2046 PRINT CONCEPT": 560 IF Z=<1 0 GOTO 600 2047 RETURN 570 IF Z=<20 THEN Z=7-10îGOTO 610 2048 PRINT TIME FRAME": 580 Z = Z-2 0 ! GOTO 620 2049 RETURN 600 ON 7 GOTO 20 02,2004,2006,2008,2010,2012, 2.014(?016, 20 I*7, 2 020 2050 PRINT PROJECTION": 610 ON Z GOTO 2022 ,2024,2026 ,2028, 2.030 ,2032,2034,2036,2038 * 204 0 205 1 RETURN 62.0 ON 7 GOTO 2042 , 2044 , 2046 ,204? t 2050 ,2052 . 2054 ,2056, 205P 2060 2052 PRINT hardwarf "? 2000 REMHERE APE THE WORDS 2053 RETURN 2002. PRINT TOTAL : 2054 PRINT contingency "* 2003 RETURN 2055 RETURN 2004 PRINT PARALLEL"? 2056 PRINT SYSTEMATIZED": 2005 RETURN 2057 RETURN 2006 PRINT FUNCTIONAL": 2058 PRINT OPTIONS"; 2007 RETURN 2059 RETURN 200P PRINT r espo n sive "* 2060 PRINT INTEGRATED": 2009 RETURN 2061 RETURN 2010 PRINT PERSONNEL": 3000 REMTHIS ROUTINE COUNTS 58 LINES TO A PAGE 2011 RETURN 3010 X = X+1 : IF X<57 GOTO 140. 2012 PRINT synchronized": 3020 PR I NT: PR I NT: PRI NT: PRI NT: PR I NT: PR I NT 2013 RETURN 4000 REMTHIS ROUTINE COUNTS 100 PAGES 2014 PRINT COMPATIBLE": 401 0 Y=Y+1:IF Y=101 GOTO 10000 2015 RETURN 4020 GOTO 20 :REMD0 OVER 2016 PRINT " BALANCED": 10000 PRINT: PR I NT:PR I NT:PR I NT:PR I NT: PRINT: PRINT 2017 RETURN 10010 END 2018 PRINT MANAGEMFNT": OK 2019 RETURN

Club Member Starts New Company Robert Reiimg

Square 1 was recently formed by Homebrew Listed are some of the Square 1 products. Computer Club member Gordon French. Three of the company's products are announced here and I DOUBLE YOUR PLEASURE: For every disk suggest you contact Gordon for those items you can you own, use one free when you buy the "Flippy- use. disk-kit." Lets you accurately and safely punch the An innovative product is Floppy-Armour. Gordon jacket so that your disks play on both sides. Save 50% developed it for mailing 514" diskettes. If you are on all disks you buy from now on. For North Star, shipping or mailing diskettes it will pay to investigate Horizon, Vectorgraphic, Polymorphic, Vista, or any Floppy-Armour. It is an excellent mailer. hard sectored 5%" diskette. Simple to use. Comes

5 w ith "goof p ro of" instructions, special high visibility for shipping. California residents, add 6% sales tax. pencil for marking black surfaces, double sided Software distributors, write for quantity price sheet. " Flippy plate," and %" hand punch. Floppy-armour is a strong, light, and clean single 3M DISKETTES: Are you using your heads to diskette mailer for your software product. The polish the media or does it come that way? ready-to-mail package, with stamp, 5%" diskette, "SCOTCH" provides solid dependability for your jacket, label, etc., weighs only 2.4 oz. Will mail data records, highest quality for your software first class for only 41 cents. Can be printed or coated product. Protect your heads and prolong life w ith with lithography for a colorful and professional repre­ 3M's superslick 1.5 micro-inch finish. All sizes come sentation of your company. Available in both 8" and in stiff pressed board boxes, with plenty of colored 514" sizes. Free 514" sample to software distributors labels. 5%” — 10 for S4.10 each / 50 fo r 3.95 each. requesting quotation on company letterhead. 8" soft sectored — 10 for 4.30 each / 50 for 4.15 Square 1, 614 Eighteenth Avenue, Menlo Park, each. Specify your system when ordering. Add $2.00 CA 94025.

Welcome Back John Bell

John Bell, Jr. was among the Homebrew Com­ recovered and is ready for a challenging assignment. puter Club attendees on September 13, 1978. John Here is his card w ith an up-to-date telephone number spent several weeks in the hospital recently. He has

J o h n J. B e l l, J r . CONSULTING ELECTRONIC ENGINEER PRODUCT DEVELOPMENT

1 4 0 5 MARSHALL ST., SUITE 7 0 5

R e d w o o d C ity , C a l if. 94063 415-367-1 137

News Release

RCA ADDS COLOR TO VIP VP-590 plugs directly into a socket provided on both existing RCA has demonstrated its new expansion board which and future VIP units. will allow its VIP personal computer to provide video displays According to Richard Simpson, Product Manager for the in eight colors. VIP, 'The low cost of the VIP Color Board is a result of using RCA's basic VIP unit has heretofore been lim ited to the new RCA CDP1862 color display IC circuit. The CDP1862 black and white display on a video monitor or, through an was specifically designed to interface with the CDP1861 external modulator, onto a standard television set. circuit, which is used to generate the VIP's video graphics."

The VP-590 Color Board, which will retail for $69.00, The VIP is a personal computer containing 2K of RAM, a allows the user to select one of three background colors for ROM operating system, an audio cassette interface and a his display; he then specifies one of eight foreground colors video interface. Input is through a 16-key keypad. The unit is fo r each of sixty-four screen areas. Any bit which is turned on com pletely assembled and has a suggested list price of $249.00. in an area will be displayed in the foreground color, while It is marketed through RCA distributors and independent 'off' bits in the area will display the background color. Both computer stores. The VP-590 Color Board, is expected to be foreground and background colors can be changed at any time. available about October 15, 1978.

Software support for the VP-590 will be provided through For further information, call Rick Simpson at (717) CHIP-8C, a color graphics language which is upward compatible 291-5848, or write RCA COSMAC VIP Marketing, New with the CHIP-8 language used on the present VIP. The Holland Avenue, Lancaster, PA 17604. □

6 IF YOU HAVE INPUT to the NEWS GET THE NEWSLETTER! Anyone in­ LETTER, send it in and it will be terested in computers as a hobby may published as quickly as possible. The receive the NEWSLETTER by sending editors cannot promise that everything a request to the Homebrew Computer sent will be published. All manuscripts Bulletin Board Club NEWSLETTER, P.O. Box 626, MUST be typed (double spaced) and Mountain View, CA 94042. The carefully proofed. All listings and NEWSLETTER is distributed monthly diagrams must be as easy to read as at club meetings and is also mailed to possible. individuals who are unable to attend the meetings. THE NEWSLETTER is made possible by y o u r donations. Please rem em ber TERRY NIKSCH OF WIZARD'S that we must pay for labels, postage, Workshop (652-2252), Emeryville, production and printing. Donations offers S-100 troubleshooting & soft­ can be given to Ray Boaz or Bob Reil- ware consulting. Very experienced ing at the club meetings or sent to P.O. Club Library — Gordon French, club with North Star Products. Box 626, Mt. View, CA 94042. librarian, has lots of interesting material and is able to loan it to anyone with EXCHANGE TECHNICAL SERVICES a definite need, but . . . please adhere GENERAL ELECTRIC TERMINAL for programming instruction — I have Terminet 300, only $700. (Approx. to the following: Limit your telephone calls to the excellent hardware skills but need help 20 available). 300 Baud, RS232C, hours of 7 pm to 9 pm weekdays only. w ith softw are. Please send y o u r tele­ Receive only, takes 80 col TTY rolls, This is important. Gordon's' phone phone number or address and I will get solid character chain, upper/lower number is (415) 325-4209 in Menlo back to you. I am in Mountain View ASCII, brand new in cartons. Ronald Park. Be specific with your request and during work week and Cotati on week­ M. Lapedia, 421-4412 (work). Gordon can probably help you — he ends. Tom Keller, P.O. Box 586, cannot randomly review the contents Cotati, CA 94928. 8" FLOPPY DRIVE & 16 K STATIC of the library for you. RAM. New, complete "Discus I" No reproductions will be made of SR SYSTEMS ANALYST - Manufac­ any materials. Shugart drive system & S-100 Con­ turing — Plan and direct maintenance All materials loaned must be re­ troller by Thinkertoys — $885; Dual — Systems Analysis. Modify present and turned so they are available for others develop new DP spplications systems $1595. 16K STATUS, 250 nS S-100 to use in the fu tu re . memory. Each 4K block indiv. addres­ in a manufacturing environment. Must sable. Kit — $280. Also assm. George be able to undertake major project Markle, (415) 969-4969. responsibility as manager. BS/MS WORKSHOPS: An expanded and new degree preferred plus heavy experience INSTRUCTION — Informal course series of four lecture/laboratory work­ in supervisory or staff position in on Hardware/Software now being shops on microcomputer data acquisi­ manufacturing. S.F. Bay Area location. organized. Call or write Dave Bengol, tion, instrumentation and measurement Salary to mid twenties. Contact 787 Old County Rd., San Carlos, systems are being given by the authors Michael Graebner, Educational Manage­ CA 94070. 415-591-0920. of the popular Bugbooks. Course ment, Inc., 2831 - 7th Street, Berkeley, dates are November 27 to December 2, CA 94710. Telephone (415) 848-5527. FOR SALE — Digital Group System 1978 and December 18-21, 1978. For Z80, 26K mem, Phi-decks, printer, more information, contact Dr. Linda FOR SALE: 64K RAM Board for AMI CRT & KBD. Complete and working Leffel, Center for Continuing Educa­ 6800 Proto system. All sockets are with lots of software (Phimon, tion, Virginia Polytechnic Institute and soldered in, and all memory and sup­ Multiple Basics, etc.). $1800. Larry State University, Blacksburg, VA port chips in place. Needs resistors and Bryant, home 415-325-9318; work 24061. (303-961-5241) caps. $250. Mike Gabrielson, (415) 415-326-4000 Ext 273. 493-5217 or (408) 246-7662.

AMATEUR RADIO RTTY REPEATER FOR SALE — Tektronix 535A 'scope FOR SALE — PolyMorphic Systems — Computer operators that are also with 53/54C dual-trace plug-in and 2 CPU, 24K of Vector Graphic memory, ham radio operators are invited to con­ new P6011 1:1 probes. Was owned with keyboard, cassette interface, tact the S.F. Bay Area repeater on and calib. by Ampex. Call Rick, work video (converted TV) and modem. 147.93 — 33 MHz any time. Speed is (415) 829-2600 x269, home (415) Telephone Bob Pisani (415) 843-5600, 60 wpm — Baudot code. FM 5 KHz 843-4188. Berkeley, or (415) 658-0900, Oakland. deviation, AFSK 170 cycle shift. Auto­ start. When allowed by FCC 100 or FOR SALE: Motorola MEK 6800 D2 FOR SALE - BEST PRICES (S-100) 300 speed ASCI I w ill soon be available. Computer System, 1K ROM.V4K RAM, 16x64 video interface (ASCII & block JBUG Monitor, Hex Keyboard and graphics), assembled, $100; 8K RAM, I WILL PROGRAM YOUR 2708 LED Readouts, 300 Baud Tape Inter­ assembled, $100; Prototyping board, PROMS for $12.00 each. Duplicate face. $150.00. Dave Hansen, 415- including buffers and regulator on copies for $4.00 each. Or I w ill sell you 969-8744. board, $20; Full ASCII keyboard, 2708 PROMS programmed to your including user-defined keys, $35. Call specifications for $25.00 each. Dupli­ FOR SALE: 4Kx8 RAM PC Boards or write Philip Klein, 1524 Sacramento cate copies for $16.00 each. These only — industrial quality — ** or ** St., Berkeley, CA 94702.415/524-9711. PROMS have 450 ns access tim e . Pro­ 2Kx12 RAM PC Boards only — made grams must be written in hexadecimal. by Intel. Both boards use 2102’s — SAVE 10% or more on CROMEMCO Typewritten preferred. I will provide great for Homebrewers. $5 each catalog items and complete computer a hexadecimal dump of each PROM. includes edge connectors, data, postage systems. Send for price list to the Send your 2708 PROMS and check & ins. Steve Kelley, 9506 Peach St., Network, P.O. Box 22212, SF, CA or money order to: Don Hobelman, Oakland, CA 94603. 94122 or call 415-664-0778. 2708 Headland Dr., St. Charles, MO 63301. I will pay return shipping FOR SALE OR TRADE. Running out FOR SALE - SCOPE: Heath 10-4510 charges. of space for your documentation? Dual-trace 15MHz; super specs, like Buy my MICROFILM READER, 3M new, with calibrator and manuals, EARN WHILE YOU LEARN to apply Model 75AFK, 16 mm reel. Will trade. $545. Also, Heath IM2202 Digital a new approach in computer tech­ J.K. Schweppe, 2011 Key Blvd., A p t.3, Multi-Meter, like new, with manual, nology. Write: , Box 731, El Cerrito, CA 94530, phone 415/ $160. Rob Shostak, (415) 326-0443 Sedona, AZ 86336. 213-2205 evenings. eves.

7 In This Issue

Additional Meetings Scheduled...... Users GroupBob Reiling ...... Letters To The Editor...... Personal Computers For Home, Office, O r Classroom Use Benchmark Campaign...... Benchmark Program...... A Report From j o e...... Club Member Starts New CompanyRobert Reiling ...... Welcome Back John B e ll...... News Release...... Bulletin B o ard......

Stanford Linear Accelerator Center Auditorium Sherman Fairchild Medical Center Auditorium

To San Franci.

SERRA p REF. W A Y ,

Stanford Golf Course

IARON HEIGHTS Where and When Lagunita

Club Meetings schedule SANTA TERESA on page one. ’ANAMA*

STANFORD LINEAR ACCELERATOR CENTER

kMPUS DRIVE PASTEUR

SHARON HEIGHTS 4

I LOREN’S

SANTA TERESA ST Medltol QtOK

“ANAMA*

O / SHOPPING CENTER M ENLO PARK

Homebrew Computer Club

NEWSLETTER OLIVER WENDELL HOLMES

P.O. Box 626, Mountain View,CA 94042

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