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  • the user group newsletter for june 1

  • Apple User Groups aresprouting everywhere, includingEurope. If this keeps up (andwe're sure it will) there will bean Apple User Group in everyneighborhood.ALASKA-APPLE-HOLICSSra Box 1313Anchorage, AK 99502G. K. Inman(907) 344-13002nd Tuesday of Month,7:30 P.M.CALIFORNIA-ABACUS USERS GROUPByte ShopHayward, CA 94540(415) 886-29803rd Thursday of MonthAPPLE BYTE USERS GROUP14052 E. Firestone Blvd.Santa Fe Springs, CA 90670Loy Spurlock(213) 921-2111(714) 739-07112nd Saturday of MonthAPPLE COREComputerland of Thousand Oaks171 E. Thousand Oaks Blvd.Thousand Oaks, CA 91360Marion A. Clarke(805) 495-35542nd Thursday of MonthTHE APPLE PICKERSSanta Rosa Computer Center604 Seventh StreetSanta Rosa, CA 95404APPLE P.LE.1st Thursday of Month,7:30 P.M.Collins J1'. High, Cupertino3rd Sunday of Month, 3 :30 P.M.

    2

    help you with IIquestions. Since it is a direct line,you won't have to leave a mes-sage with our operator, orworse yet, have to wait on"hold" while someone else'squestions are answered. If theline is busy when you call, itmeans "Please call back."

    Our question answering ser-vice has been revised in thismanner in order to better serveyou. It was found with the oldsystem that phone messages

    more manner. wouldlike your comments, both proand con, but put themin writing so as not to tie thephones up.

    When should you call Apple?Call us when your local UserGroup or your Dealer is unableto answer your question, thenSHARE our response with them.In this way we will work togetherto continually improve the depthof technical support availablelocally. We're always happy tohelp you ....

    •• 1110(')IC~S ~\'~Irl

  • Apple Magazine is here! Thefirst issue of Apple is now avail-able from your local APPLEdealer. The new magazine will bepublished three or four times ayear, and each issue will have adifferent theme. The theme ofthis issue is education, or morespecifically, how computers canbe used in education.

    Richard C. Secrist(Formerly APPLEachian UsersGroup)UTAH-APPLETripower Electric80 E. 4500 StreetMurray, UT 84107Bruce Lerner(801) 262-0860

    WISCONSIN APPLE USERSc/o Cybernetic MechanismP.O. Box 11463Milwaukee, WI 53211Ken Blochowick(414) 964-6458BELGIUM-EUROPEAN COMMUNITIESCOMPUTER CLUBc/o R. Ettore59, Rode Beukenlaan1970 Wezembeek-OppemBelgiumFRANCE-APPLE OEDIP8, Place Ste-Opportune-75001Paris, FranceSchraen Dominique508-46-21-508-47-71

    1r

    NEBRASKA-APPLE SAUCE OF LINCOLN-OMAHA2055 '0' StreetLincoln, NE 68510Russ Genzmer(402) 435-4467NEW JERSEY-APPLE TREE OF CENTRALN.J.1411 Greenwood DrivePiscataway, NJ 08854Steve Toth(201) 968-7498

    NEW MEXICO-THE APPLE CORPSPersonalized Computer Services1803 Corte del RancheroAlamogordo, NM 88310Earl J. Nielsen(505) 437-8447

    NORTH CAROLINA-GREEN APPLESc/o Greensboro Byte Shop218 North Elm St.Greensboro, NC 27410Nancy Tenell(919) 275-BYTE

    MARYLAND-MARYLAND APPLE II USERSGROUPComputerland Unlimited, Inc.907 York RoadTowson, MD 21204Kevin Parks(301) 321-1553

    MASSACHUSETTS-APPLESEED17 Saxon RoadWorcester, MA 01602Donald M. Isaac

    MISSOURI-THE APPLE JACKS OFST. LOUISP.O. Box 8452St. Louis, MO 63132Creighton Calfee

    PENNSYLVANIA-(No name yet)Computerland of Harrisburg4644 Carlisle PikeMechanicsburg, PA 17055

    TENNESSEE-APPLE PIRt. #12, Cherokee I-EllsSevierville, TN 37862

    group

    Computer Plus, Inc., SunnyvaleBobby Goodman (408) 255-5024Fred Viles (408) 298-3728APPLE USERS GROUP11074 San Pablo AvenueEl Cerrito, CA 94530Scott Starkweather(415) 233-5010APPLEComputerland of Thousand Oaks171 E. Thousand Oaks Blvd.#104Thousand Oaks, CA 91360David Kay (805) 495-35542nd Thursday of MonthL.A. APPLE USERS GROUP11911 Wilshire Blvd.Los Angeles, CA 90025(213) 826-8498COLORADO-APPLE PI407 Peery ParkwayGolden, CO 80401Austin R. Brown, J1'.(303) 279-5388 (home)(303) 279-0300 X2434 (work)1st Thursday of Month,7:30 P.M.Room 271, Green CenterColorado School of Mines,Golden

    FLORIDA-(No name yet)Southern Microcomputer Co.5901E Northwest 151st StreetMiami Lakes, FL 33169Victor Steeb(305) 821-7401

    HAWAII-APPLE USER GROUP7110 C Ohana-Nui CircleHonolulu, HI 96818Dennis Nyhagen

    ILLINOIS-NORTHWEST SUBURBANAPPLE II USERS GROUP650 Pompano LanePalatine, IL 60067Ken Rose(312) 359-6723 (home)(312) 467-8578

    INDIANA-INDY APPLE PICKERSc/o Home Computer Center2115 E. 62 StreetIndianapolis, IN 46220Doug McIntosh

    COOiOOCi: '; /

    ~----------------------------------------------l

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  • group newsletter for june 19

    I

    NOTE: THE POINTERS 60-63SPECIFY THE BEGINNING.AND ENDING ADDRESSESFOR A TAPE SA VE OR LOADDATA BLOCK THEY TELLTHE TAPE ROUTINE WHERETO FIND THE DA TA TO BESA VED AND OR LOADED.MACH LANGUAGE LOAD:

    POKE 60, BEGIN MOD 256(LOW ORDER STARTADDRESS)

    PEEK-This command allowsyou (or your program) toexamine a specific byte ofmemory. It will always re-turn a decimal number in therange of "0" to "255". Theaddress to be examined isalways specified in DECI-MAL too. (This means that"PRINT PEEK (768)" willdisplay the contents ofaddress $300.)POKE-Sort of the partner ofPEEK. This command stuffsa specified decimal numberinto an address. "POKE768,255" will change thecontents of address 768($300) TO 255 ($FF). Thiscommand is useful for plac-ing a machine language sub-routine into memory. (Seethe TONE ROUTINE onpage 45 of your "RED REF-ERENCE MANUAL".CALL-This command runs asubroutine already in ROM(Read Only Memory) or aroutine "POKED" into RAM(Random Access Memory)by your program. Again, seethe TONE ROUTINE in yourmanual.So, without further delay,

    let's plunge into the interestingworld of PEEK, POKE, andCALL ...

    POKE 62, END MOD 256(LOW ORDER ENDADDRESS)POKE 63, END /256 (HIGHORDER END ADDRESS)

    CALL-259 READS THETAPE/IN PORT

    underway at the Lawrence Hallof Science at Berkeley, Cali-fornia. In a special outreachproject, the Hall is visitingschools in the San Francisco BayArea with a van full of APPLEII's, bringing classes in program-ming to students right in theirclassroom. Joyce Hakansson,director of the project, reportsan enthusiastic response wher-ever the "Apple Cart" goes.

    Finally, we have plans atApple to support education inmany ways. You can expect tohear about them in the EDU-CATOR'S CORNER.

    Well, here are some of themuch praised subroutine Callsfor the APPLE. This started outto be quite a project as most ofthe more obscure calls are burieddeep in the heads of people backin Engineering. Then, just as wereally got to digging, we re-ceived a copy of the ABACUS(Apple Bay Area Computer UsersSociety) newsletter. These guyshave already done all the work!So, if what you need is not here,write to ABACUS at the follow-ing address for a copy of theirlist.

    ABACUS2850 Jennifer DriveCastro Valley, CA 94546

    It seems from the number ofquestions we get that most peo-ple consider Peeks, Pokes, andCalls to be somewhat magic.We've even had people ask forthe Poke that would increase thecapacity of their DISK II's! Inlight of this, maybe a shortexplanation of terms is necessary.

    by Roger Cutler, EducationalSpecialist

    With the next issue of CON-TACT we begin a regular "EDU-CATOR'S CORNER" column ofnews and ideas for educators. Weknow that many schools andteachers around the country havepurchased APPLE II's. We hope,through this column, to let youknow what other educators aredoing with their APPLES. Manypublications have asked us tolocate interesting projects andarticles written by educators. Letus hear from you, so that wemay pass along the news toothers.

    Microcomputers represent anew and exciting medium forteaching and learning. During thenext year there is going to be anexplosion of educational soft-ware and courseware. We atApple want to support and helpcoordinate these efforts. We needto know what you are doing andwhat your needs are.

    As many of you know, theMinnesota Educational Comput-~gComortium(MECC)h~

    selected the APPLE II micro-computer for the MinnesotaSchool system. It is convertingmany of its educational programsto run on the APPLE II, oftenwith graphics, color and audioenhancements. Watch this newcolumn for news of how you canobtain these programs.

    Another interesting project is

    In addition to articles on ed-ucation, the magazine containsour catalog and information onsome new apple products.MORE CONTRIBUTEDSOFTWARE

    Volumes 3-5 of the Contri-buted Software Library are nowavailable. These volumes areparticularly well documented, soyou should have no difficultyusing them.

    4

  • 'i/ the user group newsletter for june 1979

    MACH LANGUAGE SAVE: THEN TAKE 62 and 63 AS THE CALL-8ll7END OF THE BLOCK A, THE BASIC

    POKE 62, END MOD 256 SOURCE BLOCK. THEN TAKE RUN INTEGER:(LOW ORDER END 66 and 67 AS THE BEGINNING CALL-6090ADDRESS) OF THE DESTINATION BASICPOKE 61, BEGIN /256 BLOCK OR VERIFY BLOCK B. SAVE INTEGER:(HIGH ORDER START CALL-3776ADDRESS) MACH LANGUAGE MOVE: BASIC

    POKE 60, BEGINNING OF LOAD INTEGER:POKE 62, END MOD 256 SOURCE MOD 256 (LOW CALL-3973(HIGH ORDER END ORDER ADDRESS) BASICADDRESS) POKE 61, BEGINNING OF

    POKE 63, END /256 (HIGH SOURCE /256 (HIGH SOME ADDITIONAL

    ORDER END ADDRESS) ORDER ADDRESS) MONITOR CALLS:CLEAR GR SCREEN

    CALL-307 WRITES OUT TO POKE 62, ENDING OF CALL-1998TAPE SOURCE MOD 256 (LOW CHANGE COLOR +3

    ORDER ADDRESS) CALL-1953NOTE: VERIFY ROUTINE POKE 63, ENDING OF RESET TEXT MODELOOKS LIKE THIS. WE SPECI- SOURCE /256 (HIGH CALL-1233FY THE BEGINNING OF ORDER ADDRESS) ADVANCE CURSORBLOCK A, THE SOURCE CALL-1036BLOCK AND THE END OF POKE 66, BEGINNING OF BACKSPACE CURSORBLOCK A. WE THEN SPECIFY DESTINATION MOD 256 CALL-1008THE BEGINNING OF THE (LOW ORDER ADDRESS) CURSOR MOVE UPDESTINA TION BLOCK. POKE 67, BEGINNING OF CALL-998

    DESTINATION /256 (HIGH CURSOR MOVE DOWNMACH LANGUAGE VERIFY: ORDER ADDRESS) CALL-922

    POKE 60, BEGIN MOD 256 SCROLL SCREENCALL-468 MOVE COM- CALL-9l2(LOW ORDER BEGIN MAND CLR TO END OF LINEADDRESS)

    EXP: 800

  • This column is written as a service toApple customers, and contains informa-tion on products that we feel to be ofinterest to the user community. AppleComputer does not in any way recom-mend these products or warrant theirsuitability for use with the Apple IIComputer.

    ... BASIC TeacherThis BASIC teaching package

    contains 13 lesson programs6-16K in length. Lessons 1-12teach Integer BASIC. The topicscovered include statements andcommands, keyboard controlfunctions, loading and runningprograms, etc. Lesson 13 usesgraphics and sound to explainpeeks, pokes, and calls a usermay need to produce graphicsand sound effects.

    Price of the BASIC Teacheris $19.95 on tape or $29.95 ondisk. For a more detailed descrip-tion of this package contactCharles Mann & Associates, 1926South Veteran Avenue, LosAngeles, CA 90025.

    ~ ~ ~

    ~I!!tmH~

    ~ _14_~ ~ ~

    aGII[El _ COLOR

    O'l .. F EJi.'it TRIM~ _ 14

    ;:! _ -m:mPIN4

    TOP VIEW

    UHuuuuon nol.5KnnunonOH HH 0

    GND

    onOUHonHOUOUH

    breadboard section of yourApple as shown in figure 1. Thetransistor base and one end ofthe resistor should be tiedtogether. Then wire the other

    end of the resistor to IC F 14-pin 4, wire the transistor emitterto ground. The capacitor next tothe edge on the corner will do asa ground.

    To test the final product,put your APPLE back togetherand turn it on; go into BASIC,type GR, then type TEXT. Thescreen should go from color toblack and white.

    IMPOR TANT! Please waituntil your APPLE is a year oldbefore making this modificationas it will void your warranty.

    group newsletter for june 1

    'YllaCtic •••

    ALL THESE RESPOND TO ESCAND ARROWS.TO FIND INPUT CHARAC-TERS LOOK AT THE INPUTBUFFER BY PEEKING 512 to767 DEC ($200 to $2FF HEX)

    How many times have youstarted merrily programming inInteger Basic only to find outthat you should have been usingApplesoft? Well, for you Disk IIowners, here's a trick that cansave you a lot of typing.

    Enter this line anywhere youhave room in your program. Inthe example we've used line"0", but this could be anyavailable line number. (For thisexample, the symbol "@"means "Control D".)oPRINT "@OPEN X": POKE33,33:

    PRINT "@WRITE X": LIST:PRINT "@CLOSE": END

    When this line's entered, typethe command "RUN" and press"RETURN". Your program willnow open a file called "X" andlist itself into that file. When thatoperation is complete, get intoApplesoft with the "FP" com-mand and EXECute the file.Viola! Your program is now inApplesoft just as though you hadentered it from the keyboard!

    '6"\lI'Il:r'll'irr :; / the

    If you are one of the pio-neers that bought your APPLEbefore the days of the colorkiller modification (SiN 6000+),and you use a color TV as amonitor, then this hardwaremodification may be of interestto you.

    First add two parts, a2N3904 transistor (or equiva-lent) and a 1.5K resistor, to the

    ... The big cover-upWant to keep your Apple

    clean and happy? Then buy it aComputer Canopy dust cover.They are made of heavy paddedvinyl and come in 12 colors.

    Delivery is three weeks fromDigital Dynamics Inc., P. O. Box27243, San Antonio, TX 78227.(512)' 231-2012.

    6

  • COflm~i::if the user group newsletter for june 1979

    · .. Fast Floating PointThe AMD95 I 1 Fast Floating various math functions:

    Point Processor Board increases The price for the fullythe computation speed of the assembled and tested board isAPPLE II such that the calcula- $450.00, including shipping andtion of 5000 sines requires only handling. From your local Appleabout 24 seconds rather than dealer or Computer Station,133 seconds. The table below 3659 Nameold Road, Graniteshows the speed increases for City, IL 62040.1 (618) 452-1860.

    FUNCTION AMD9511 BOARD APPLESOFT IIX=SGN(I) 14 seconds 14 secondsX=SQR(I) 15 seconds 250 secondsX=SIN(I) 24 seconds 133 secondsX=COS(I) 24 seconds 135 secondsX=TAN(I) 27 seconds 246 secondsX=ATN(I) 27 seconds 224 secondsX=LOG(I) 25 seconds 114 seconds

    · .. They laughed when I satdown to play

    Turn your Apple into a con-cert organ. Play the keyboardjust as you would an organ. Andyou can save your compositionsfor later play or editing. $9.50from Computers Etc... , 13 A.Allegheny Ave., Towson, MD21204. (301) 296-0520.

    · .. Space PilotTry your hand at landing a

    space ship on the moon. The shipresponds exactly as a real one, soyou've got to be good to keepfrom crashing. $9.50 for your32K Apple from Computers Etc.

    · .. Continuing MedicalEducation

    This approach to continuingmedical education uses a disk-based 32K Apple II to deliver itscourseware. Lectures written by80 prominent authors from 30medical schools present inter-active and individualized conver-sations for AMA Category 1credit to the physician/user.

    Approximately 60 lectures,lasting 30-45 minutes, are cur-rently available in InternalMedicine, Surgery, Primary Care,Urology, and Psychiatry. Addi-tionallectures are being devel-oped in these and other areas.

    If you would like to receivemore information about thissystem, please write or callMilliken Communications Corp.,

    1100 Rearch Blvd., St. Louis,MO 63132. 1 (800) 325-4136.... Home control

    A new foreground/back-ground system for home controlcalled Apple Butler gives theApple II the capability of run-ning two programs concurrently;one for the monitor and controlof systems in your home, andone for any other task you careto do.

    The Butler provides up to 16analog inputs for temperature,light, moisture, or any otherinput data. Up to 32 switch in-puts are provided for security orfire sensors, push buttons, mag-netic reed switches, or otheron/off inputs or status indicatorsfrom controlled devices. Up to32 output latches are availablefor control of output devices.

    Several control modules willbe available for the Apple Butlersystem. The first will be a solarheating control system to controla solar hot water heater, a solarassisted home heating system, awater-heating fireplace heatingsystem, or a combination of thethree. Other systems are plannedfor control of automatic swim-ming pool equipment, sprinklersystems, home or commercialgreenhouses.

    The Apple Butler costs $595from your local Apple II dealeror from Home Computer Center,Inc., 2927 Virginia Beach Blvd.,

    Virginia Beach, VA 23452. (804)340-1977.

    · .. Apple '21'Here is a true Las Vegas

    Blackjack game. One, two, orthree players can challenge the"dealer" to win on the table.This game keeps track of all yourwinnings and losses and gives youa balance when you leave thetable. Any player can quit orjoin at any time without disturb-ing the game.

    The program requires 24Kand uses the Apple HIRESroutines.

    Price is $9.95 from Softape,10756 Vanowen St., NorthHollywood, CA 91605.

    · .. Light PenA new light pen that installs

    directly into the Apple II I/Osockets is now available fromSymtec Inc. The light pen can beused on any standard TV or dis-play monitor in black and whiteor color and can provide x,y co-ordinate values of up to 255 iny and up to 511 in x. That'sgood enough to isolate a singlehi-resolution point.

    Provided with the light pen isa demonstration cassette writtenin integer BASIC. A completelisting of the light pen routineand suggested uses for the lightpen is included in the applica-tions manual.

    Price for orders is $249.95.Advanced orders and inquiriescan be directed to Computerlandof Southfield, 29673 North-western Hwy., Southfield, MI48034, (313) 356-8111, 1lam-6:30pm Tues-Fri; or SymtecInc., P. O. Box 462, Farmington,MI48024.

    · .. APPLE CLOCKA Real-Time Calendar/Clock

    for Apple II keeps time and datein 1 msec increments for over ayear. The calendar, clock, andevent timer functions are easilyaccessed from BASIC; and a re-chargeable battery keeps theclock "ticking" when the com-puter is off. A software con-

    7

  • 10260 Bandley DriveCupertino, California 95014

    (408) 996-1010

    conOOCi:;j the user group newsletter For june 1979

    THIRD CLASSU.S. Postage Paid

    Permit No.3440

    San Francisco, CA

    $225.0020.0070.00

    $315.00

    8

    trolled interrupt is provided toallow pre-programmed activitiesto take place.

    By adding the Apple Clockto this manufacturer's RemoteControl System you have real-time control and monitoring ofremote devices over regular ACwiring.

    Price of the Apple Clock is$199 assembled and tested.Delivery is 30 days. MountainHardware, Inc., 5523 ScottsValley Drive, Scotts Valley, CA95066. (408) 438-4734.

    ... Quality SoftwareThis company has a new line

    of software for the Apple II.TEXT EDITOR ($17.95) allowsmanagement of free form text.U-DRAW ($17.95) is a hi-resprogrammable graphics editorwith tape I/O. ELECTRICCRAYON ($17.95) is a graphicseditor similar to U-DRAW, butin lo-res color. MUSIC BOX($12.95) gives three octavesound with no additional hard-ware. NUMBER CRUNCHER($9.95) is a set of single preci-sion math and ASCII to HEXsubroutines. CHRISTMAS

    TAPE ($9.95) is a musical Christ-mas caroler with blinking colorChristmas tree. Also available aregames at $12.95 each.

    Available from Apple dealersor the Muse Co., 7112 Darling-ton Drive, Baltimore, MD 21234.(301) 661-8531.

    ... Hello Houston, this is Applecontrol

    Energy Technology hasannounced an interface for theApple II that allows a user toremotely control any 24V,11OV, or 220V utility or appli-ance to which an Energy Tech-nology remote unit is attached.The system utilizes Energy Tech-nology's industrial remoteswhich consist of 11 OV plug-in,24V thermostat override, 24Vnon-thermostat override, and220V in-line models. All unitsare shipped completelyassembled and tested. The AppleII Interface is $189.00; remotesrange in price from $85.00 to$120.00. Energy Technology,Inc., 102 Conway, P. O. Box Q,Las Cruces, NM 88001. (505)524-8615.

    ... Trade you my PET for yourApple

    If you, or one of yourfriends, bought a PET or a TRS-80 and now want to trade up toan APPLE II, don't dispair, thereis a way. Newman ComputerExchange will buy that usedmachine. They have a used com-puter "blue book" and pro-cedure letter that your friendlyApple dealer can get by writingor calling:

    Newman ComputerExchange, Inc.1250 North Main StreetP.0.Box8610Ann Arbor, MI 48107(313) 994-3200Here are examples of theirtrade-in allowance:TRS-80TRS-80, 4K, level ICRT-41 Recorder12" Video Display

    PET200l-8K $400.00You can't get all your money

    back, but you can get half of itback, which you can then applyto a new APPLE II.

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