Brand New Kits Lead the Way Into the 1980S

Brand new kits lead the way into the 1980s-and keepyour lamilycompany allwinler long! r New Healhkit4-Elemeil, Tri-BandYagi Anlennais our easiesl-lo-assembleham antennaever with an induslryflrgl - a detailed, step-by-st6paesembly manual - page92 . Berlitr Self-lnstruclionLanguage Programs in French,German, llalian and Spanish, plus an eleclronlc LanguageTranglalor - page14 r Threenew HeathkltContlnuing Education Programs- De3cripllveand Inlerential Statistica- page13; lC Tlmers- pagell c New HealhkitUllrasonic Cleaner lakes caro of hard-tq-cleanltems wilh ease- page17

HEATHKITELECTRONIC CENTER CATALOG NO. 848R HAT{DYINDEX ON BACK COVER

'rHsrth" and 'He.lhklf' rre roglalersd Irrdcm!*r of H6slh Comprny. @1980 H.rlh Comp.ny r HeathkitComputer Systems-with extra'value convenience Theworld's leader inqualif electronic kits leads the tray in per. sonalcomputers andcomputer systems tfrat give you more val. uesand features - wfiile saving you money Forover 30 years, Heath Company has been at the forefrontof consumer electronics, most recently incomputers. Heath was one of the first to offer a personalcomputing system when we designed an analogcomputer back in 1957.We felt, even back then,that computers were the wave of lhe future,so we kept up our interest and enthusiasmforcomputers. TToday, Heath con- tinuesto developone of the most complete andinnovative lines of computersand computersystems available anywhere. iYhetheryou purchase Heathkit Computer productsin economical,easy-tobuild kit formor as fully assembled units, you'llget well thought-out, expertly desicneddesignedoroductsproducts that ofler substantialsubstar benefitsover competing products. Whenyou buy Heathkit Computer products,you get extra value for yourcomputing dollar. I lfireediftersnt computer systons to lill anycomputing need o I fullselection ol videoterminals andother peripherals . Dualflolpy disk slorage srstems o Vanatilesystsms soflware o Guaranteedupdates of disl{ascdsoftsare for oneyaar after purchase . Mcmoryand interfacing to male yourHaathlit Computer evon more versatils . fhoroughand accurate Heath docum?ntation - thabest in tm conputerindustry r Completenationwide sorvice support llowto selecta computet.There are many considerations in selectinga computer: Doyou want built-in peripherals orthe flexibility to designyour own system? Do you want the ability to expandyour memory poweras your skills grow? How good is the systems software? ls it compatible I withexisting software? Will the manufacturer stand behind the compUter? E thesequestions when you Youcan be sure of theanswers to considerthe Valuepachdlleathtit Software in- full lineof HeathkitComputers and computer systems. cludesprograms written in MICRO- Threeyery ditfsrsnt computers lor verydiflerent people. Heath designs S0ff" BASIC"and Assembly lan- people, people ,," computersfor andbecause wantvery different things from *$ guages,in audiocassette or floppy computers,Heath has designed three different computers; !f diskformats, that make our com- Forfleribility-the ll8. lf you'reinterested in developinghardware, need putersmore versatile for you.Our morethan 48K of read-writememory or writephysical l/0 routinesin As- completesoftware line can help semblylanguage, the H8 is foryou. lts versatilebus-oriented architecture, ri youwrite your own programs eas- expandabilityand hardware front panel position it asthe rightcomputer ily. Andwe won'tlet yourdisk- choice.With seven plug-in positions for memoryand liO, youhave the flexibilityto designyour own system. See page 76 for moreH8 details. Hiili:tTl..;:lri,ii?fi,j,i.l,3J Forconvenience -lhe All-ln-0neH89. lf you'remore interested in runningsoft- w inYnchan'e!'rreeoi warethan in hardwaredevelopment and experimentation, theH89 gives you a charge.see pase 82 ror ru,, ffirrrr-,H.tl',1i::,il0u complete,balanced computer system in oneconvenient package. lt's lessflex- llUG- theHeath Users' Group - keepsyou informed of newcomputer programs ibleand expandable than the H8, but the H89 is everybit aspowerful and very writtenby other members and available to you,and keeps you up to dateon new cost-effective.And the H89 has a "personality"which a first-timecomputer user developmentsin Heathkit ComDuter Products. Owners of HeathkitComputers will find comfortable.The H89 includes computer, terminal, floppy, l6K RAM, canbecome members of thisgr.oup, which shares an extensive program library. keyboardand keypad. Just add software and you're ready to run.For more in- Seepage 84 for more details on HUG. formationon the Alfln{ne Computer, see page 74. lleathdocmentation is tho lcst in tte computrrindustry. lf youwant to build Foradvanced applications - the 16.bit llllA. lf youneed a computerfor scien- a HeathkitComputer System yourself, we make it easywith complete, easy-to. tific uses,real time systems or otheradvanced applications, and DEC PDP-llV03 followassembly manuals which take you, step-by-step, lrom unpacking to plug- hardwareand software capability is significant,the HllA is yourchoice. We gingit in.You'll understand your computer from the inside out. And in bothkit otfera largeselection of compatiblehardware and software, including an IBM andassembled forms, Heath's operating and instructional manuals are fully de- 3740compatible 8.inch disk system, EASIC and F0RTRAN languages and optional tailedand thorough. Documentation is one of themost important parts of any hardwarefloating point arithmetic. See page 78 for moreinformation on the computersystem, and when it comesto documentation,you'll begin to realize HeathkitH11A Computer. thefull value ol a HeathkitComputer. 72 lsyour businoss readt l0r a computsl? andflexibility for yourneeds Hore'sansastwayt0 find outthe answcr

ComputcrGoncopb for Small Buslnrss ls dcrilnrd to glveyou fia informetloland undustandlngtou $4gtt ncsdto syeluatafie uscfulnersofr conputerIn yourtusincss. Are the benafitr worth Un c$t? Ourprogram holps you decidr. you're lf a businsssmanrho's thinkingabout using a conputrrin your il business,Computer Concepts for SmallBusiness is for you.Designed for the businessmanwho knows little or nothingabout computers, this pre gramshows you how a computercan serve your business needs. lt covers: I TfteComputer and llow lt Worls:Including types of memory,storage media, lleatholleru conpletr service sup l/0s andsoftware. A detailed discussion of different types of applications port.Technical expertise, .advice software,covering the typicaltasks a computersystem can perform for a andservice for your Heathkit Com- smallbusiness. puterSystem are always available. Serviceexperts at the Heathfac- Iha DalaProcassing Dspertmeil and Plrsonnel: This covers the organiza- tionof a typlcaldata processing OP) department; the rolesof the data tory or at the 55 HeathkitElec- processing processing tronicCenters manager,data engineer,systems analyst, operator fromcoast-to-coast andother personnel; and a comparisonof permanent employees versus canhelp you keep your Heathkit personnel, ComputerSystem working right, free-lance includingthe advantage of each type of employee. Ihat'sone important advantage of Altcrnatiuosin CompubrSanicos: Including a comparisonof the advan- buyingyour computer from a com- tagesof owningpur owncomputer system versus a time.sharingaftange- panywith 30 yearsof experience mentand using a servicebureau, with a discussionof thetypical problems in computing. of eacharrangement. Youget thc c0nvanienceof one.stop shopping for all of yourcomputer needs. llowTo Salsct a Computer:Discusses how to defineyour data processing Thecomplete selection of HeathkitComputers, terminals, printers, computer requirements;how t0 put togetherthe rightcombination of hardware, accessoriesand software is availablebetween the covers of theHeathkit Cata- peripheralsand software; and how to getthe mostfrom outside data pro. log.Heathkit Computer Products are designed to worktogether, and to looklike cessingservices. theybelong together. Yllhen you buy a HeathkitComputer System, you can count Theprogram includes a l60.page text with 3 appendicesand 3 cassettes. on a balanced,harmonious system. And you'll take pride in knowingthat you Completionof the final exam with a passinggrade earns you I CRl. yourself. builtit tC-1103,Shpg. wt.5 lbs...... {9.85 Its timsto purchasra conputer has nsyer leen battcr. . Savc5% wten you purchasea conpleteHeathlit Comluter System. Simply choosethe H8,HllA H88or H89computer, one major peripheral and any l/0 devicesand accessories you need to completeyour computer system. Then, de- duct5% fromthe total price (excluding shipping and handling chargesl. lt's the ll you'rcnot satisfiad witi an; llcathkitSrlf-lnsbtrctlon Drotr.m, idealway t0 getthe exact computer system you need. uB'll complotcltrcfund thc purchasaprlcc. 73 All'In'OneComputer: acomplete system inone compact unit

o lleary.duUprolessioml lQtbofd o lfl( random acc03snemory, ]lrafi bulldsso nucl conputlufisr o llumer'rckeypad incrlculdor fornrt erpandailolo 481( andso nany leatwrs ln oiracofo'pnar o Smartvideo tsrminal o 8uift-infloppy disk stonge forttis hr ficr: o TwoZ{0 nicroprocessors- one for . nuggedGonstruction gomDnlr,ono lor terminal o lasy"lo*ead12',ClI ortyf1695orunas

Youcan gct all the powarand huilt-in perilherals A l2-inct (diagonalneasurel cathods ray tube pro- theH89 Computer's components and circuitry. youneed for anyporsonal computing task'in one ducosclear, sharp, easy-to-read characters. Upper 0rderyour lleathlit All-ln0ne Gomputer today. With compact,des[.toI comnuter-the lleatlkit All.ln.0ne andlower case letters are formed by a 5 x 7 dot power Computer!With convenience features s0 muchcomputing andso manyfriatures thatmake it matrixin the formatof 24 linesby 80 charactersbuiltin, this desktopcomputer brings easyt0 programand operate, this 8.bitcomputer (witha specialnon-scrolling 25th line). Lower case exceptional can.makecomputerizing your valuewitiin yourreach. Put this exceptionai value homeor businessa letterswith descendersuse a 5 x 9 dot matrix. to workfor younow! reailw. Alsofeatures 33 line graphicscharacters using TheAll.ln.0ne's heavy-duty professional teyloard 8 x 10dot matrix. H80All-ln-0ne Computrr, with floppydislr srutam. IncludesH88-5 Audio Cassette lnteriace. cancontrol all videotorminal functions, with- eisht Youcan expand the HeatilritAll-ln.0na Computer to user-functionkeys available to giveyou your l$t 1189,Shog. wt. 86 lbs...... 16S5.00 extrafle-xi- meet needs.lt comeswith 16K RIIM, expand- WH89-CS bility.Select bald rates of upto 9.600throuch the ableto 48K,with memorydiagnostics built in to GomphtalyAsssmbled All-ln.0ne Comnut- keyboard.Direct cursor addr'essing lets youinsert makememory checks faster and easier. Accessory er,with llolly disl system,4Sl(msmory and sdrial anddelete characters anywhere on the s6reen, and interfaceslet youcommunicate with printefs, cas- l/0. Doesnot includeH8&5 Audio Caslette Inter- the_terminalsupports line graphics characters from settesor time-sharesystems (with appropriate soft- face. keyboardor computer. ware),and all communication is EIA RS-232 Standard. Wll8$CS,Shpg. wt. 54 lbs...... 2895.00 Dosignedin calculatorlormat, a numerickeypad Ite built-infloppy disk system mahes this a true H88All-ln.0ne Computer, uithout floDty dist system. makesentering arithmetic programs fastsr-and All-ln-0neComputer, giving you tremendous stor. IncludesH88-5 Audio Cassette lnteridCe. easier.Shifted functions give you cursor control agecapacity for programsand data. Each 5tlc.inch lfit 1188,Shpg. wt. 59 lbs...... 1295.00 for insertionsand deletions. diskettehas 100K bytes of storage.The WANGCO/ Ihesmart video terminal is one0f thsmost sophis. Siemenssingle{rive floppy disk system gives you ticatedever designed. Both the terminaland the 'programsvirtuallyinstant access to anyinformation. Load ' computerhave their own 280 microprocessors. This in seconds,access and update data fast I meansthe All-ln-0ne Computer can perform a mul- withthe sameHl7.l drivedescribed on page77. I titudeof high-speedfunctions, because the termi- Ite All.ln-0neComputlr is built to witistandthe "1 nalnever has to shareprocessing power with the t0ughestwoiling environments, with a tough,rugged I computer- not the casewith mostother desk-top structuralfoam cabinet protecting its circuitry.And computersand computer systems. a convenientliftotf top givesyou easy acc6ss lo

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'c0 sPEClFlGAIlOil$Proc6sol: z-80. clook 2.0/18mHr. t.m. I ofy! 16K bytes user RAM(epandabtc to /tEK).vidro tcr. I minrl! High.resolutionCRT with p4 phosphor,Scrsen li CharactorC.lacltt! 1,920 characten. Char.ct'r Typei a 5 x 7 dot matrix (upper case), 5 r I dot matrir (lower case with descenders).l(etboard3 80 keys, typewrlter u lormat, with numerickeypad in calculatort0.nat. GuFor: c Blinking,nondestructive undetline or block,Cursoa Con. e trolsi Up, down,lett, rlght, home,CR, LF, bact spaceand t sGtgtNl tab. 8||rc0rAddrussing: Relative and direct. Tat: Standard ,0 eightrolumn tab. nrfnsh nrte: 60 Hz at 60 Hz line tre- l{umrrlc ksypadlt| calculrtoi quency, ! formrt lonrit! frstar, 3|3lar 50 Hz at 50 Hz line frequency.Edit Flrctiols: ll nugipd-3tuctunlfo.m .rltimctic rntri!s. Insertand deletecharacter or line. Eras! Funcuonr:Erase u cillnst probctsyour ' trom beginningof line, eraseto endof line, orasettom lll-lo{no tionelalectronic layloard page, ! Contuter. begianingof eraseto end of page,erase line and (l sagierr8rdr. suer touch, erasepage. P0s0r Rsqul.rmotrtzl2O/24O VAC, S0,/lO0 Hz at 90 watts maximum.Dlmsl3ions: L3tt ,l x I7,t W x 2AnD d (ilil cm x 4i1.2cm x 50.8 cm). tl Fr' E. 6-. wF f: r.".Fr' {di.

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i:i)i;'ry4tlri: ,','t: Accessoriesand software let yourAll'In'One do even more! TheHeathkit All-ln.0ne Computer runs programs SystemsSoftware for the All-ln-0neComputer's PopularMlCfl0S0ff* IASIC Computer Language. 0ne writtenin M|CR0S0FT*BASIC and Assembly FloppyDish Storage System. Includes a diskette of the mostversatile languages for personalcom- languages,including scores ol practicalprograms containingextended Benton Harbor EASIC; a two- puting.Features direct access to CPUports and loryour home or business. And the optional passabsolute assembler; a text editorto prepare memorylocations, lF-THEN-ELSF control structure accessoriesenable you to performmore ta6ls, sourcecode for BASICand other languages; a full for morehighly-structured programming, powerful st0remore data and communicate witft more set of disk utility programsfor convenientfile programedit and file managementfacilities, power- peripherals,nating the All-ln.0ne even more manipulationand a consoledebugger to makede- ful stringprocessing functions, automatic line versatile! bugginguser machine language programs easier numberingand renumbering, double-precision float- andfaster. Dynamic File Allocation permits efficient ing pointarithmetic, more. Requires floppy disk useof freedisk space, eliminating time-consuming driveand minimum 32K memory (48K recommended). CassetteSystems Software for the lleathkit All-ln-0ne disk-compactingutilities. Supplied on a standardH8-21,Shpg. wt. 3 lbs. ..100.00 C0mputer.Easy-to-use features include extended diskette. BentonHarbor BASIC. a modifiedversion of Dart- H89-17,Shpe. wt. 5 lbs...... 100.00 mouthBASIC, an easy-to-learn-and-use conversational FloppyDisk Storage Systen, Orive and Interface for the H08All-ln-0ne Computer. Store up to i00K languagewhich uses simple English statements and l6K Random algebraicequations; Assembly (HASL-8), a language AccessMemory Expansion Chip Set. bytesof informationon eachSYe-inch diskette. produces Expandthe capabilityof yourHeathkit All-ln-0ne FamousWANGC0/Siemens single-drive system for whichassembles source code and object Computerby two code,utilizing all the standard8080 mnemonics, addingone or l6K RAMchip sets. speedyaccess to information.(lncluded in H89 pseudo TheAll-ln-0ne Computer is equipped with l6K RAM; only).Diskettes not included. extendedmnemonics and numerous instruc- maximummemory capacity 48KRAM. tionsiText Editor {TED-8), a general-purpose, line- is 11884,Shpg. wt. 22 lbs...... 490.00 orientedtext editorthat is usedprimarily to pre- H88-2,Shpg. wt. I lb. ..150.00 paresource code that can be assembled using the AudioCassette Interface lor Wll89All.ln-0ne Con- HASL-8Assembly Language above, but can also be Two-PortSerial U0 Interface.Lets the All-ln-0neputer.Connects yourWH89 with a cassetterecorder/ usefulfor letterwriting, manuscript editing and Computercommunicate with the H14 Line Printer, player,such as the Heath.recommended tCP-38014 preparationof newsletters;and Console Debugger time-sharesystems (with appropriate software) or (page80). Allows your computer to storeand use (BUG-8),which you can use to load,execute and anyother serial peripheral. Two serial l/0 ports moreinformation. Standard with H88 and H89 All- debugmachine language programs inyour computer. supportan EIA standard RS-232-C interface. In-0neComputers. H88-18,Shpg. wt. 5 lbs...... 20.00 il88-3,Shpg. wt. 2 lbs^ ...... 85.00 ll88-5,Shpe. wt. 2 lbs. ....*.9: HeathkitHg Personal Computer gives you pL €'io fl

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dutypower supply lets the H8 handle up to 65Kof memory(including l/0), while 8$|tr-basedcomputer withfront keyboard, digital convectioncooling means no fan is needed to preventoverheating. readoutand7 plug-in board positions TheCPU board, including the 8{180Achip, clocl, systomscontrollcr and R0l{ panelprogram m0nitor,is fullyassembled, wired and tested for easierkit assemblyand faster o Euilt.ini0il nonitorcontrols front systemsetup. An exclusive Heath-designed 50-pin fully-buffered bus gives you o lleavy.dutypower supply handles to 65Knemory moreroom for memoryand l/0s. TheH8's built-in speaker gives you audible r Getboth hardware and software support from the same reputable source feedbackand special effects. Front panel status lights keep you up to dateon yourcomputer's status. With all these leatures and more, the Heathkit H8 Com- ThcHeathkit H8 - thecomputer that grous ai you9r0f,. You get the flexibility puteris anexcellent choice to bethe heart of yourcomputer system. your you positions to design computersystem lust the way wantit. Withseven you periphreals,your for plug-inmodules, you can put together any combination of memory and l/Os. W[en addmore msmort, intertaces and H8System can becomeeven more powerful and versatile. You'll be ableto writemore highly 0u largaselection ol HBpcripherals, accessories and softwaregive you sophisticated,higher.level programs. The optional H17 Floppy Disk System gives unmatchableversati lity. youeven greater storage capacity, and the capability to loadprograms and utr l{ovicescan use the HB as a computertrainer by adding 4K of memory.The 16- datefiles instantly. keyfront panel keyboard provides octal data entry, direct access to registers Theunique flexibility ol thaH8 means you can design an H8 Computer System andmemory, one-button program load and dump, and input/output keys to di- from a vastselection of periphrealsand accessories - including additional rectlycommunicate with any port. And you can directly monitor program activity memory,cassette data storage, CRT terminals, hard copy printers and an acous. withthe H8'snine-digit octal readout, which provides much more information tic modem- to meetyour unique computing needs. And because the H8 is based thanconventional computers. onthe popular 80804 CPU, the amount of existingsoftware makes your system Ihc featureswe pacl intothe ll8 Conputermean mors val$ t0 you.A hearry- immediatelypractical. Designyour oun ll8 Computer System Withseven plug-in board positions for memoryand input/outpul I 0rsave with one of our complete H8Systems 1 devices,your Heathkit H8 Computer System can grow as youl j needsgrow. Some of youroptions are described on the chart Ht38t H0bBlrt Sfstrm. Includesthe HeathkitH8 Computer,HE-S Seri.l l/0 and CassetteIntertace, H8-l 8K MemoryBoerd, H8.3 4K Chip Set, H9 CRTTerminal, l below.Each box represents a plug-in module. ECP-3801AAudio Cassette Recorder and H&18 CassetteSoftware, Everything you I need to get started. lf purchasedseparately, Srys whenyo.l i 91003.00. tl0l,00 I Memory buy the system. I Hl(S81,Shpg. wt. 94 lbs, ...... 885.00 mil tffit -l m i ill(S82Advanced Sfsirm. A morepowsrful, more versatile systam for the 8dvanced llassStorage t-Gsetr- l-Fi'ppy computerite.Includes H8 Computer, H84 FourPort Serial l/0, lVHS-f6l6N Msm- 'i I E0P.3801A conl'oller ory, Hl7 Floppyoisk System,H19 CRTTerminal and H8.17HDoS Software. lf I I I I'vith I purchasedseparately, $2,124.00. Srve 1129.00 when you buy the system. HfiS&l,Shpg. wt. li$ lbs...... ,,1995,00 I lnterface l-;iill rffi-l tT;mil WHS83ftsomblad Adnncrd Sfston. tncludgsWHg Computer, WH8-4 Four Port I Cassettel | 4.port I l3.portl Soriall/0 WH8-1616X Memory Card, WHl7 Floppy Dlsk and /$.17 HDOSSoftwa.e. I l-po+H&sl I H&4 I I H8.2| lf purchasGdseparately, $1644.00. S.va t1t19.00when you buy the system. WfiS83,Shpg. wt.81 lbs, ...... 1tt95,m Peilpherals Terminal Hl4 MODEM I H9,H19 H36,WH34 lYH.13 [76 I i

I flexibilityat anaffordable price-and floppy dish capability

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Usethe HB as the heart ofyour computer system Hl7Floppy Disk makes your HO System ever more yersatile Whenyou buy tfie Heathkit ll8 Computer,you get the flexihility and Youget vast storage and programming capacity, instant eccess t0 versatilityyou need to reallypersonalize your computcr systcm anyprogram and easy loading with the H17 Floppy Oisf System. - at a pricethat lits yourbudget. Whether you buy one ol our You'llreally see the powel of your computer once you add a floppy conpletesystems or designyour own, you can build an ll8 System dislsystem. And with tm opthnalsecond drive, you can grofit to suityour needs. fiomadded dual-drive versatilig and capacig. l{emoryand U0 accessoriesare offered separately from the computer itself, so Ihe ll17floppy Oist System gives you the storage and programming capacity youhave complete lreedom to assemblea computer system that meetsyour youneed to loadprograms instantly. Store hundreds of programson a single specificcomputing needs. To build a completesystem using the H8 you'll need diskand have immediate access to anyone of them,anytime you need it. And bothmemory and interface accessory cards. The type and number of memory youcan update your data instantly. The Hl7 makesyour H8 Computer System andinterface accessories you'll need will be determined byyour application. a "totalversatility" system. Ihe ll8'soptional software is suppliedin 1200baud audio cassette or diskette Designedexclusively for usewith the H8,the H17 stores up to l00Kbytes of formsto helpget you up and running faster. You can begin communicating with dataon a standard,hard-sectored 4O-track diskette which measures just SYt" the H8right away, with Benton Harbor, BASIC, the HASL{2-pass absolute as- in diameter.The disks are easier to handle*andeasier to load-thanpaper sembler.the TED-8 line-oriented text editor and the BUG-8 terminal console de- tapeor cassettes. buggingprogram. For complete details on H8software, see page 82. When you Ihe H17uses the famous IYAI|GC(I/SIEMINS 82 singla drive systom, a Oerlor- buyan H8Computer, you'll also be eligiblefor membershipin HUG, the Heath provides Users'Group,which maintains a growing program library. Details on page 84. mance-provendiskdrive which accuratehigh-speed access to data.The WANGC0/SIEMENS82 drive performs much better than most equivalent com- Ihe value-pricedH8is housedin a heavy-dutymetal cabinet with modern, high- petitivedrive systems. And it's suppliedfully assembled and tested for the Hl7. impactstructural foam side panels. Operates on switch-selected 120/240 VAC, 50/60Hz. Dimensions, 6t/2" Hxl6r/t'Y,l x17" D.Requires at least 4K of mem- Toget even more data and program storage area, add the optional H17-1 Second oryto operate.(See page 83). Driveand make your H17 a versatiledual.drive floppy disk system. l(itH8, Shpg. wt. 3l lbs...... 289.00 I0 usethe ll17 effectively, you need at leastl6K RAM for theH8 and the H8.17 (see FactoryAssembled and Tested H8 Computar. OperatingSystems Software p. 8?. A singleblank diskette is included. Wtl8,Shpg. wt. 30 lbs...... 349.00KitHl7, Shpg. wt. 28 lbs...... 495.00 Eraminethe nanuals before you [uy. Here's your chance to lookbefore you buy, lYH17,Factory assembled and tested H17. Shpg. wt. 28 lbs. ...550.00 risk. andwith no TheHM800 Manual Set includes complete assembly and op- 0ptionalSecond Driye. Adds dual-drive versatility to theH17. Get a totalof 200K erationsmanuals for the H8 Computer,H84 lnterface,Hl4 Printer,WH8-16 bytesof program MemoryBoard, Hl9 CRTand H8.17 software. When you order the H8 Computer, availabledata and storagearea. deduct$25.00 from the purchaseprice (not including shipping and handling tll7.l,Shpg. wt. 5 lbs. ....315.00 charges).llil800, Shpg. wt. ll lbs...... 25.00 P?qk?gcof 5 BlankDiskettes for usewith the Hl7 FloppyDisk System. N|lTErIndividual pruduct manuals are included with each kit. lllT-2,Shpg. wt. I lb...... each25.00

Hll Floppyllisk Operating Sottware gots you running fast Gctyour floppy dlsk systen up and running DynamicFile Allocation, which automatically keeps tastri$ rpociallyenginoered systems freespace available to permitunlirnited file size soltuare- lordGdwith convenlcnce foaturss gndprevent squeezing of disks.Special facilities supportrunning and backup of single-driveconfig- ;:ii crr: The0perating Systems Software for theHl7 Floppy permit DiskSystem includes a diskettecontaining the urationsto copyingand transferring between standardH8 software. This includes disks,even with a single-drivesystem. Device in- ExtendedBen- dependencepermits direct communication between ton HarborBASIC, a 2-passabsolute assembler, a program program text editorto preparesource code for BASIC,As- any andany device. A file utility semblyand other languages, a console debugger for allowsbulk manipulation of files. easydebugging of usermachine language programs Getthe most from -H8-17your H8 Comouter and Hl7 Flooov anda full setof diskutility programs to makefile DiskSystem with 0perirtingSoftware. SriF manipulationmore convenient foryou. pliedon a standarddiskette. Specialfeatures of the operatingsoftware include HSl?,Shpg. wt. 14 lbs...... 1m.00 77 HeathldtHllA Computerbrings 16'bit power to / t dr

Lr th it s€ bl a th IY pr uponyour needs. lf you'rean advanced hobbyist or professionalwith demanding Themost popular business/science computer onthe market computingapplications, the16-bit H11 is yourbest choice. The HllA hasade. Hr isnow ayailable ata price you can afford quatecomputing power, even for themore complex and sophisticated jobs that qr youwill be tackling later. When you buy the HllA, you are purchasing ultimate c( Designedfor themore serious computerile, the Heathkit HllA Computeroffers immediateDerformance andmaximum future potential. t(l the powerand potential you need to implementmore sophisticated computing physically (half- t. program-ThellllA featuresthe new, smallerKDll-HA microcomputer applications.Most computerites lind thattheir problem-solving and sizeLSI-ll/?. This makes the Heathkit HllA identicalto theDEC PDP-Il/03, I| mingcapabilities grow quickly, and before long, they run out of computingpow- performancebutat a fractionof thecost. This smaller conliguration allows you to putmore er.The HllA is thecomputer that meets the demand for superior computingpower and versatility into the HllA byproviding an extra plug.in slot E in scientific,educational and small business applications. When you buy the foradditional memory orl/0 interface. ll HllA Computer,you get real computing potential. g Youget the lleribility to configurethe exact computer system you require with tl TheHllA givesyou all of thepower, speed and flexibility you'll ever need in a theHllA. Seven plug-in slots let you add any combination of l/0s and a maxi- microcomputer.lt uses the same powerful microprocessor runs all 2t and software mumof 60Kbytes memory. Ihe basic Heathkit HllA Computeris supplied with ll designedfor the DECoPDP-11/03. You can choose from a vastselection of a handsomecabinet, heavy-duty power supply, and a backplanethat includes t' practicalprograms to runyour home more efficiently, to reducethe clerical busand a fullyassembled CPU board. You can add your selection of optional costs0f yourbusiness and to processall typesof datamore efficiently than memoryand l/0 accessoriesto the mainframe. A wide selection of softwareis before.lf you'vebeen around computers and your computing needs require ex- alsoavailable. (See pages 82 and 83 for accessoriesand software to makeyour trapower, the HllA Computeris designed for you. HllA ComputerSystem even more versatile. Complete HllA SystemsSoftware Ihe l6iit vs.8-[it issue:Your choice of a l6-bitor 8-bitcomputer depends forthe H27 Floppy 0isk System isavailable below). HllA0perating Ststems Sottware forthe ru Heartof the Hl lA - theKDI l-HA Microcomputer Ihc llT-ll SlslemsSoftrarr lets youimmediately enjoy the full benefitsof a q The[011-fl4 16-tit Microcomputer module forms the heart0f the rapid-accessfloppy disk system. You get easy-to.use programs, including' q HllA Computer.lt's onlyhalf the size of thcl(0-1lt ([Sl-lll, lut you E0lT:A texteditor to createor modifyfiles for programsand documentation. & getmore flexibility uhon you configure your llllA System. EIPII{|I,AStBtE AtlD CREF: Utility programsfor macroexpansion,Assembly al Ihereis no on-loardmemory, s0 youcan match your MM/R0I{ re- Languageprocessing and cross-reference listings. Supports the entirePDP-II E quirementsto meet your particular needs. And full compatibiligwitlr instructionset and several pseudo-operators. d ths LSI-Illamily means you can comiine components from both the UNlGtr Convertsobject modules produced by the assembleror the FORTRAI{ 0l LSI-I1and tsl-l1/2 families. compilerinto a runtime format. Services include relocation of code,linking of t Featuresof theKDll-llA include a PDP-I1/34instruction set, e rar global,references and the creationof a runablepiogram file for useby the rest ft computsrspcsd 0f 38{lnS microcycletime, resident firnware de. ot thesystem. T (00D Dugging andASGII console routines, as well as single and doutle LlBRlilAll:Creates and maintains libraries of subroutinesfor useby the linker. ti operandanstructions. The l(Dll-llA gives you tfte powcr and flerilil- s ityyou need for advanced system conligurations. PIP:The Peripheral Interchange Program is the file maintenanceand transfer iI utilityprogram of theHT-ll. lt hascommands formoving copying and renaming rl files,plus other commonly.used fileoperations. 78 tothe advanced computerite-at an affordable price

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Getthe power and yersatilif you need in the HllA Computer H27Floppy Disk gives you instant accoss todata o l&bit computingpower with up to 60Xu0rds 0f memory o 2f,0Microprocessor-based controller o 0[Colnlf-size XDl l-llA (LSl-l 112) CPU o Fullcompatibility with DEC RX0l@ ODP.! t 103) r Conpatiblewith OtG P0P-11 /03 . Fasthead step time of 8 mS o Plug-infleribility for memory and l/0s o Dual-drivecapability for a totalcapacity of /z ileg bytes learnby buildingit yourself.What better way is thereto knowyour computer TheH27 gives you dual{rive versatility, with a totalot r/zMegbytes of pro- thanby buildingit yourself?The Heathkit HllA Computerlets you understand gramand data storage to giveyou enough room for most of yourgeneral-purpose it better.You can build it yourselfand benefit from the knowledge- and the applicationneeds. The 280 Micro-controller in the H27provides an average savings.Like all Heathkitdesigns, the H11A comes with an easy-to-follow assem- accesstime of 252mS. You'll have virtually immediate access to all yourfiles blymanual - anda nationwidenetwork of servicecedters to helpyou, should andprograms. a problemarise. And when you build it yourself,you can also perform more of Youget full compatibilitywith DECo RXVIlo (PDP-ll/03) hardware and soft- theservice steps yourself, to keepyour computer intop operating form. ware,to giveyou the capability ol usingthe hundreds of applicationsprograms lVhetheryou buy an HllA ComputerSystem or thecomputer itself, compare the writtenby users of theDEC PDP-Il/03, the world's most popular microcomputer. priceof the Hl1Awith comparable l6-bit computers. Buy this extra-powerfulPerformance-provenhardware and software base provides outslanding computer Heathkitcompuler and find out whythe combinationof advanced design and power.While compatible with the RX0lsystem, lhe H27gives you more. A qualitycomponents make the HeathkitHllA Computerone of the best16-bit built-inself-test diagnostic on power-upprotects existing programs on your computervalues anywhere. disks.A mechanicalinterlock prevents accidental media damage (if thefloppy l(itll1lA, Shpg. wt. 43 lbs.. ...1135.00 is notseated properly, the door will not close and the H27 will notoperate). A write-protectfunction protects important files and programs from being written factoryAssembled and Tested HllA Computer. overinadvertently. And a reformattingprocedure gives you the capabilityof lYHtlA, Shpg.wt. 43 lbs...... 1895.00 writingin the IBM 3740 standard format. SPtClFlCAI|0llS:C.rtfiil Proces3ingUnlt: UsesDEC XDll-HA CPU, Word Length: 16 bits. A single-boardinterface/bootslrap uses one backplane slot, leaving more space Instructio[ 8st: PDP-I103.llomory3 Directly addresses 32 X. l/0 Addrossod:28 K to 32 K. for memoryand l/0 additionsto yourHllA ComputerSystem. The H27 Floppy lllrl,/R0ll: 0 to 28 K. Baclplano:Eight 2-wid€ moduleslots. Powe?Supply: overcurrert DiskSystem measures 8" H x 18"W x 20"D. lt operateson 120or 240VAC, and overvoltageprotected, switching regulator. Intemal lan for cooling.lnnuts! 120,/ 60 Hzpower. To use the tull capabilitiesof the HT-ll Operating Systems Soft- 240 VAC;60/50 Hz,at 200 wattsmaximum. outputs: +5 VDCat 15 amperesmaximum ware,designed for usewith the H27 Floppy Disk System, you need at leastl6K end +12 VDCat 3 amperesmaximum, C.ti'|et oimonsions(overrll):614,, H x 19,,W x wordsof memory. 17l D. (16.5x 48.3x 43.2cm). lfit 1127,Shpe. wt. 93 lbs., Motor Freight ...... 1945.00 Wll27Dual-Drive Floppy 0isk System. Fully assembled and tested. ItE8,OlGlTAt and PDP are registercd trademarls l{1127,Shpg. wt. 69 lbs.,Motor Freight ..2595.00 of DigitalEquipment Corporation. H21-2,Pkg. of 5 BlankDisks, IBM 3740 format. Shpg. wt. 2 lbs...... 30.00 tloppyDiskSystemto help tou get your computer sy$tem opereting quickly and etficiently OT: Tfe HT-ll'sOn-line Debugging Technique aids in debugginguser programs fqilmil for llT.ll Systam.Binarf software features complete AI{SI standard byproi,iding commands to displayand alter the stateof a tunningprogram. 1966f0RTnAN lV with extensionsfor increasedsoeed. Some of the extensions SlSlClllnnPRmR: This high-level convenational programming language offers include:relaxation of statementordering, use of'expressions nearly anywhere, acce$sto the tlT-ll l/0 systemand file structurethrough the BASICLanguage. directaccess l/0, TYPEACCEPT and PRINT l/0 statements,ENCODE'and DECODE Extensionsto standard BASIC include variable-length strings, sequential files, statements,END and ERR parameters, random number generator, IMPLICIT virtualmemory arrays, chaining and overlay capability. A "desk calculator" mode statement,more. canperform once-only calculations or seryeas an aid in debugging. "HT-11.1,Shpg. wt.9 lbf...... 250.1X1 tlSCEttlllE0USPl0SRAtrlS: Dump prints contents of filesin anyof severaluse- *l10TE:The HT-ll Disk0perating System and HT-Il-l F0RTRANare compatible ful formats.SRCOii compares two files, prints summary of differences.. onfywith the Heath H27 or YlH27Floppy Disk Systems. To obtain this software, the easy.touseHT.ll 0peratingSystem for theH27'Floppy Disk System extends theCustomer Software Sublicense Grant must be signed and you must include theHll/HllAs capabilities.Minimum reqqirements include an Hll or HllA themake, model and serial number of'your CPU in the blank provided on page 82 Computerwith at least16K words ol mainmemoryr a consoleterminal and andinclude the Grant with your order, interface,and a Heathkitfloppy disk drive, controller and interface. 'llT-ll 0peralingSRten with BASlt, Shpg. wt. 12lbs...... 310.00 Seepager 82 and03 for ourlull selsctiorof opentingapplicationr **13 - - _ \a.D\> IheHeathkit Hlg Smarttideo Terminalhas features like professionalheyboard and super-sharpCRTdisplay o Z&lmicroFocesor.lased for $6950-q.ffiili;'*.T#,lT monitortot easy.to.readlmages o Fullprofeslonal lryioard in lyperniter fomat o Printscomplet lS0ll set including upper andlower casg chatactrru, ald spscialgrapftic synbols looxat theseprofessional features: . Eightssparate user-deflnaDlefunction toys o Separatenumoric leypad e Standardtypewriter format o Heary.dutykeyboard o lddressallellinling cursor o Elight,oasy-to.lead 121diagonal GRT o OECYT.52" sonpatiblo

PowerfulHeathkit Hl9 "Smarf'Uideo Terninal for a multitude ofhigh-speed functions Hlg SPEClFlClTlollS:CRT: l2l DiaSonal,P4 phosphor. Dlrpl.y Slil: 6+&r,high x 8Y2,,wlde. Ch.nctlr sir!: 0.2r, TheH19 Video Terminal is a top-of-the-linegeneral- lowercase letters. The print format is 24 linesby . high x 0.1t wide (approx.).Clnr.cter Sst 128 characters purposeperipheral designed for use with the Heath- 80 chatacters(with software controlled 25th line). (95 ASCIIand 33 graphlc).Charrster !tpe: 5x7 dot matrix kit H8and HllA computersor withany EIA RS-232 Addressableblinking cursor lets you make correc- (uppercase), 5x9 dot matrix(lower case with descenders). Standardinterface. lts powerful280 microprocessor tionsor editanywhere onthe screen. Reverse video l(0y!oard:80 keys (60 alphanumerlc,12 tunctio[) plus a mahesit ideal for high-speed data handling. lets youempiasize any portion of the screenby lz.key numeric pad. CursotsBlinking, non-dostructlvo reversingwhite on black. lnderli[e. CutsorConuols: Up, down,left, right, home, Thetypewriter lormat lets you start right in pro- CR,tF and tab. CursorAddras3ln& relative and direct, grammingfrom the keyboard. The terminal's 32 sep- Thebig 12" diagonal CRT has outstanding resolution Tei: standard8.column tab. naftcsh llrte 60 Hz. Enro aratefunctions can be controlled from keyboard or fora bright,clear readout. The terminal also displays tunctlon33ense page,erase to end of lir|o, eraseto end computer.A l2-key numeric pad in calculatorformat 33different graphic characters that can be arrangild of page.Scroll: auto or line/pagetreeze. Bell: audlble makesentry of arithmeticprograms fast and easy. for a varietyof graphicdisplays and effects. alarmon receiptot contml G, Yidao3normal and reverse Baudrates of up to 9,600are keyboard selectable usingan escapesequence. lfiicrfecer EIA RS.232Cat ll0 for easychanges. Eight user-function keys give you l$t lllg, Shpg.wt. 49 lbs...... 615.1X1 to 19,2()0baud. Comnulic.tions ilode3 full or halt duolex, prints FactoryAssamblsd and Icstrd Yersion of above. Parity: even, odd, sticl or oone. Pouor! l2O/240 VAe, an extrameasure of flexibility.The H19 Hz, 45 W. llimcnslols: l3n x theentire ASCII character set, including upper and lllll9,Shpg. wt. 43 lbs...... 995.00 60/50 H l7t, w x 20I o.

SaYa AssembledCassette Recorder/Player $120 ldralfor i 0n dahstora$ H9CRIYideo Iermiinland lGytoad lhis Heath-recommendedassembled Cassette Re- CatModem by Novationlets your computer talk to Oisplaystwolve 8&character lines. Has autoscroll- corder/Playeris ideal for datastorage use with otherclmputers over standard telephone lines. De ing plotand erase.modes, automatic line carryover, computers.Features volume and tone controls, push- provides signedespecially for the small computer, it features cursor,buitt-in speaker. Seriat interface buttonselect of record,play, rewind, fast forward, selectableoriginate and answer modes. LED display EIAR$232C levels,20 mA current loop, ITL levels. stop,eje0t. Also has built-in 3-digit counter with of unitstatus and special acoustic self.testing. Com- Parallelinterfacing includes TTL levels, 8 bitsinput, resetbutton. Factory wired; not a kii. pact,powerful. Plugs directly into wall sockets. 8 bits output,4 handshakinglines. 120/240 VAC, ICP-30014,Shpg. wt. 4 lbs...... 60In Dataexchange occurs at anyspeed up to 30 char- 60/50Hz. lLth" Hx 15%"W x 20Tq'D. Heath-recommendedhighoutput, low notse, pre- actersper second,via standardEIA-R$232C inter- f,it ll9, lbs. .. .. ilor 379.lXt 50 . ....Tfas S1g9.m, miumgrade audio recording - tape. Pack of three face.The ideal computer communications link.Many AdapterGable. Interface H9 with other devices. 3$minuteblank cassettes. practicaland fun applications. Fully assembled. Ull9-1,Shpg. wt. 1 lb. .:...... 15.00 tCP.3802,Shpg. wt. I lb...... perpac18.00 tllll3, thpg.wt. 3 lbs. .; ...... 185.m Printers:fiom lorpcost matrix to letterquality font PopulartA36 DEC Writer llprovides sharp "hardcopy" printout for your computer

Fully assembled!

Prepaid shipment! $l550oo

Seosational lowprice!

Fastand reliable, the H36 is an advancedtechnology tele- printerfeaturing a 7 x 7 dotmatrix printhead, switch selectable 10, 15 and 30 cps you printingspeeds. Handles variable width forms from low-costH14 line Printer gives 3" to 147/a";adjustable left andright hand tractors permanentcopies of your programs halfor full duplexoperation; ANS|-standard multi-key rollover;typewriter-like keyboard. Prints 10 charac- o Oneof thelowest-cost ters per inchhorizontal spacing, 6 linesper inch $675?flmicroprocessor{asedprinters vertical.Compatible with all HeathkitComputers and r Usewith most computers mostothers. With 20 mAcurrent loop l/0, connect- TheH14 prints standard 96-character ASCII set ingcable and integral stand. (upperand lower case) on 5/7 dotmatrix print lhe H35 (LA36oEC WnITER ll) is shippedMotor Freight, head.Uses readily available 0.5" wide nylon inked prepaidto your nearestterminal in the ContinentalU.S. Gst ths sritra teatrres tou H35oEC Writer ll, For 120VAC, 60 Hu ...... 1550.00 ribbonon 2" soools.Maximum instantaneous a price the othersstill catl't H36-l Fan-tofrllhper tor fl36. Standard141h" | !tt, while printspeed is 165CPS with selectable line length and -H36-1,sreen.sinrleoart. lined DaDer.3200 shoets Der car- of 80. 95 or 132characters. 6 lines oer inch TheH14 is suppliedin kit formor fullyassem- ton. shpg.ivt. 47 lbs. :. : ...... '. . 35.00 spacingwith 8 linesper inch software selectable. bledand factory tested. 4t6" H x l|ry's"W x ll3&2 EIA ltteff.ce. ProvidesEIA RS232-CInterface for Baudrates selectable from 1104800. Adjustable l4Yz' D. 1201240VAC, 50/60 Hz. Requires H8- LA:16,g-ft, cable with 25-pin data-settype connector.Re- 17,H8"18 or HC8-14software for H8;HT-ll or quiredto operateH30 with H88and H89Computers. , widthsprocket feed handles edgepunched fan- H36-2,Shpg. wt. 1 lb...... 70.00 foldpaper lrom2.5" to 9.5"wide. Hll-18software for Hll orHllA. il36-3Acoustic Coupler. Provides hookup to phonelines for Kit Ht4,Shpg. wt. 30 lbs...... 675.00 time-sharing.l$t H36.3,10lbs...... 270.00 TheHl4 connectsto the H8or HllA computer by the useof a standard(RS-232C) serial inter- WHl4,Assembled version of above. H364,Rilbon Acc?ssor!, Shpg. wt. 7 lbs...... 15.00 pro- Shpg.wt. 27 lbs.. ...835.00 DECis a registeredtrademark of DigitalEquipment Corp, faceor 20 mAcunent loop. Handshaking is videdby a busycontrol signal. Includes 25-pin ll14-1,3200 sheets 9Yz" x ll" Fan.FoldPaper for maleEIA connector and a matchingpaper catch. usewith Hl4. 31 lbs. ...32.00

Compact,Yersatile DEC Desktop Don'tcompare the Heathkit WH24/TH0 Line Printer with other, incomplete models ComputerTeleprinter o Unlikeothon, our price doesinclude upper/lower $1895'u case,floor stand and papercatch trat TheWH24/Texas Instruments 810 Line Printer is a high-quality,low-priced line printer that can make an impacton bothyour printing and your printer costs.lt hasfedtures you usually don't find at such a lowprice - likeoptimized 150 cps bidirectional Convenientdesltop printing,which minimizes printhead travel time and Fully designmales the lA34 maximizesefficiency, and vertical and horizontal Assembled! idealfor otliceuses tabbing,which team with bidirectional printing to producemaximized data, regardless of format. Desktopteteprinter prints the futl 128character ASCtI set tractordrives, alignment can be madeat themain vvithswitch selectable110 and 300 baud rates. Offers TheltJH24 has a 256-characterflF0 buffer that lets controlpanel. true 30 cps print speed,adjustable chancter rvidths, ad- youreceive data at speedsfrom 110 to 9600baud. iustableline spacing,clear printing through a 9x7dot ma- Donot comparewith incompleteunits elsewhere. trix head.Designed like a standardtypewriter lor operator Programmableforms lengh and a widecarriage can WH24includes upper/lower case, floor stand, paper easeand convenience,the LA34features standard sculp- handlemultiple-part forms, tickets and reports from catchtray. n}lz4} VAC.8"H x?53/r"lit/ x 20" 0. tured keyboard,cartridge ribbor change,autofiEtic line 3 to l5 inchesin width.And a 9 x 7 dot matrix feed and npre. IncludesEIA RS232Cinterface cable, rib- prints fleedsWHAII-5 Serial l/0 Cardfor HllllltlA only. bonand paper. 7,t H x22i w xl5y2't D.120vAc, 60 Hz. characterfont clearer,more legible charac- l{otrequired with other lleathkit systems. WH34.Assembled and tested. 40 lbs...... 1295.00 tersof anoriginal, and up to fivehigh-quality copies. makeit easier lYH24,Shpg. wt. 97 lbs., Motor Frt...... 1,895'00 WllA3+l,3 ribboncartridges, wt. 7 lbs. .. "...... 30.$ ThefVH-24's adjustable tractor drives WllA3d-2,Tractor feed accessory, Wt, 9 lbs. .,. "..t50'00 to operate.0nce a formhas been engaged by the WllAll"S,Serial li 0 Card,1 lb. . .. .150.00 81 Accessoriesand software give your Heathldt c( H89soltware gives you more ways to use your computer 16Kmemory is preferredif full useis to bemade of its capabilifies.Extended Whetheryou're a hobbyisl0r in business,Heathkit software will helpyou do BentonHarbor BASIC supports the H14 Line Printer and the H84 Four-Port Serial yourwork - 0r havefun - fasterand easier than [elore. And when you buy lnterfaceBoard. The software is suppliedin 1200baud audio cassette form. anyol our disk-basedsoftware packages, we'll supply you with any changes HC8-14,Shpg. wt. 13 lbs...... 20.m that are incorporatedinto the programfor the nertyear - freeif charge, 0peratingSystems Softvare Oesigned Especially for the H8Computer. Helps whenyou sign and return the Customer Softwars SuDlicense Grant. youget ready to programyour H8 quickly and easily, with features that make Microsofi*BASIC": the most popular computer language. Microsoft BASIC is it easierto useand more oractical than other svstems. Automatic command oneof themost versatile languages for thepersonal computer. Scores of pro- completionsimplifies typin!, dynamic syntax cheiking instantly alerts you to gramsare written in thisBASIC. Microsoft BASIC features the following capa- errorsand a specialuser configuration lets you personalize your system. bilities;Direct access to CPUports and memory locations (lNP, 0UT, PEEK, Thisoperating systems software includes, Benton Harbor BASIC, a conversa- P0K0;lF-THEN-ELSE control structure for more highly-structured program- tionalprogramming language which makes use of simple English statements and ming,including editing during programming and random or sequentialfiling familiaralgebraic equations to perform operations and solve problems; HASL-8 capabilites;Powerful program edit and file managementfacilities; Powerful AssemblyLanguage, a two-pass absolute assembler that lets you create source stringprocessing functions, il?cluding LEfiS, RIGHTS, MIDS, ASC, CHRS and programsusing letters, numbers and symbols to generateefficient machine concatenation;Automatic line numbering and renumbering; PRINT USING for languagecode. lt assemblesthe source program into a listingand an object controlof outputformats; 0N ERRoR command for control of errors. programin binaryformat executable bythe H8; TED-8 Text Editor, which con- Thissoftware includes a variety of mathematicaland logical functions as well, vertsthe H8 Computer and terminal into a powerfultypewriter for generating includingdouble precision floating point number and double precision mathe- textand editing. lt preparesthe source code for H8Assembly language and matics.Microsoft BASIC requires H8-17 0perating Systems Software for the canbe used to preparereports, write letters and edit manuscripts; and BUG € H17Floppy Disk System (order at righ0and a minimumof 32Kmemory. Console0ebugger, anenhanced and extended version of the front panel monitor ll8-21,Shpg. wt.3 lbs...... 100.00 whichallows entry and debugging of user machine language programs via an externalterminal. lt leaturessingle or multiplestepping through programs, ExtondedBenton llarbor BASIC: super-fast BASIC. Extended Eenton Harbor breakpointing,load and dump from tape storage. A userprogram is required BASICis aneasy-to-learn, easy-to-use conversational computer language. This touse the Console Debugger; anda fullset of disk utility programs. enhancedversion of DartmouthBASIC includes strings and files. lt provides evenfaster operation and'includes character strings, additional convenience A minimumof 8Kmemory is requiredto runthis software. This operating commandsand math functions, dynamic storage allocation, access to realtime systemssoftware is suppliedin 1200baud audio cassette form, which requires clock,keyboard interrupt processing, expanded error messages and recovery anH8-5 Serial l/0 andCassette Interface toload. ability,LED display control and key pad support. H8-18,Shpg. wt. 1l lbs...... 20.00 ExtendedBenton Harbor BASIC features two different types of data:numeric 0peratingSystems Software for theHl7 Floppy0isk System. Includes a disk- datawith over six digits of accuracyand Boolean values which permit logical ettewith the standard H8 software (Extended Benton Harbor BASIC, a 2.pass operations.lt also features free format programs, enhanced expression, math absoluteassembler, a text editor, a consoledebugger and a fullset of disk functionsand conditional statement facilities. utilityprograms. This software issupplied ona standarddiskette. A minimumof l2K memoryis requiredto runExtended Benton Harbor BASIC. H8-17,Shpg. wt. 14 lbs...... 100.m andfrn with these H8 computer games Suppliedin 1200baud audio ca$ette form,requiros H8.5 (opposlte) to load. Biotlythm.Plot your body's biorhythm, know when to takeon the world and throughthe galaxy. Requires 24K RAM. Pl-83, Shpg. wt. I lb...... 10.00 !v!ento stayhome. Runs under extended BASIC, requires 16K RAM. nl. PA-82,1 rb...... 10.00 GameSet Letsyou play 8 popularcomputer games, including Craps, Orbit, Tic-Tac-Toe,Nim, Hexapawn, Hangman, Hamrabi and Derby. Requires 8K or SpecoWar. Guide, control and command the starship Enterprise as it travels moreRAM. These games will provide hours of entertainment.P1.84, 1 lb.10.00

IT ITIIII IIIIIIIIIIIIIIII III-II CUST(IMERS(lFTWARE SUBTICEIISE GRAIIT HEATHCOMPANY ("HEATH') for itselfand on behalf of thelicensors listed S0R'scopyright notice) only for useon such CPU. The bUSTOMER sfratl not I below(referred to individuallyor together as "LICENSOR") grants to CUS- providediot-herwise make available the Software or anyportion thereof in 1 TOMERa non-transferable andnon-exclusive sublicense to use the software anyform to anythird party without the prior approval of LICENS0R. Title I programs(referred to individuallyor together as "S0FTWARE") listed un- to-theownership of the Software shall at alltimes remain with LICENS0R. 1 der.therespective LICENSOR under the terms and conditions stated in this L1CENS9RAND HEATH JgtNTLy AND SEVERALLy D;SCLA;M ALL tMpLtEg I SublicenseGrant. WRnnnllftfsW1TH REgARD T0 THtSg}fu[Rg LTCENSED HenEUnOfn, 1t- I ThislormMUSIaccompanyyourS0FIIIARIorderlor: CLUDINGALL WARRANTIES 0F MERCHAI'ITABILITY ANDFITNESST andany I g**li'u;*,Hj*:lil BAsrcl'-'ii?i?'i'i#lltf:ll"xi'l'il':Jjil.iliiTiiili"J l',tttlrifililj Eli.il.tjdngr,fvstcmwith processorl",i i E;0ciu/priGnlirti'pl-oliissorHiirsibipr!'iiiiuage li,,iti|,,f'dlo,il3'1,1,.,?l,T:H:ltil',i3111ii,,',';'i,?1-,To',1.?!,1['03;.tnoI programpurchased with this order only. Sign SublicenseGrant, thd.liceni.qs--Clgllted hereunder and the S0FTWARE.t.y r Checkbox tofor HEATH eachsoftwareanother iubiicensb form with future soFhvAHt :lr{l:.4 srant ffJrfi3ofii1tJiflrltJt:r?|nttttlt$iil!'i3,+t'd-i1ffli,lS';f?l [1TI granleogranted provloeoprovided Writein the blank your CPU make, model and serial number: lsis nereDyherebyexcept ast,, ornerwlseotherwise {-- neren'herein.r" t oi' inbra.rk) [|y l (lf is purchasedwith this order, HEATH will fill inthe blank.) v CPU CUSI''TIER TheS0ffWAREisfurnishedtoCUST0MERforuseonthesingleCPU|istedBy I aboveonly and may be modified,or copied(with the inclusion of LICEN- customer'ssisnature I I I systemmore veniatility than errer before

Accessoriesgiueyour H8 computer more capability H8-5Serial l/0 andCassette lnterface. Cassette interface with one serial Usaany or all of tfisseaccessories t0 expand the capabilityol yourll8 ll0 porifor conlrolterminal. Connects your H8 Computer to serialdevices Computerand male your system eyen more yersalile. suchas the H36 DEC Writer li. Alsoconnects the H8 Computer to a cassette recorder/playermass storage deviQe, such as the ECP-3801A.Features WllS-I6i6l( l{iredftlemory Board. This board lets you expand your H8 Com- jumperseleclable data rate from 110-9600 baud, plus common input/output puterto the full capacityof the 8080ACPU. Fully assembled and tested, interfaces- including 20 mA currentloop and EIARS-232C compatible. andfactory burned-in to eliminate memory problems. levels.Cassette interfaces uses the popularByte/Manchester recording WllS-16.Shpg. wt. 2 lbs... ..395.00 format,but runs at 1200baud. N0TE, A secondH8-5 Serial ll0 andCassette Wil8.BFully Assambled and lested 8K ilemory Board. 8K x 8 memorycard, Interfacecannot be used t0 connectthe H8 Computer to the H14 Line Printer. suppliedwith 8K of memory.Plugs directly into H8 bus. Features maximum TheH84 Four-Fort Serial lnterface is recommendedfor H8 Computer systems storagecapacity of 81928-bit words. Uses modern 4i(x I staticmemory lC notusing cassette data storage. chips.Access time is lessthan 450 nS. With on-board regulators, heat sinks l(itH8-5, Shpg. wt. 3 lbs...... 95.00 andfull buffering.Factory assernbled and tested. FactoryAssentled and lested Version of Above. WH8-8,Shpg. wt.2 lbs. ..:...175.00 l{H8-5,Shpg. wt. 2 lbs...... 120.00 H8-2Parallel Interface. Use this parallel interface to connectyour H8 Com- puterto anyparallel device, such as printerswhich accept parallel l/0. AdapterCable for usewith H8"5 Serial l/0 andCassette Interface. Provides threeindependent parallel ports, each with 8 bitsinput and 8 bits EIAindustry standard electrical and mechanical interface between H8-5 and Features otherperipherals. For use with ll8 Computer.Factory assembled and tested. output,as wellas universalhandshaking capability. Compatible with all I Heathkitsoftware. l{H8-51,Shpg. wt.1 lb...... ,15.00 I lfit H8-2,Shpg^ wt. 3 hs. . . . .150.00 H8-7Circuit 0esign Breadboard Gard. The H8-7 lets you custom desisn vour H8.4tour-Port Serial lnterlace. The H84 is recommendedto interface your ownanalog or digitalcircuits for additional interfaci:s orcreating your bwn H8Comouter and H19 CRT Terminal to theH14 Line Printer. All four serial memoryboard. This circuit design breadboard card uses solderle6s bread- portssupport a standardRS-232C interface, including MODEM controls, One boardsockets,-also provides address decoding and bus buffering. A 5 VDC power I portis switchprogrammable ior a 20 mAserial loop. Baad rate is software supplyfor logiccircuits is providedon the board.Experiinental cir- cuitsmay be torndown easily and the H8-7may be easilyre.used - or programmable.All ports feature solderless addressing and vector interrupt permanenl jumpersfor easysetting. Also has interface connector for DCEand DTE crrcurlsmay De crealeo. modes.Includes one l1lH8-41 cable to facilitateconnection to line printers, Kitll8-7, Shpg. wt. 2 lbs...... S0.00 suchas the Heathkit H14, [xaminethe manualsfirst. Here's a chanceto lookbefore you truy - with lfit ll8-4,Shpg. wt. 2 lbs.. . . .150.00 no risk.The HM800 Manual Set includes complete assembly'and operations Fact0ryAssembled and Tested Version of Above. manualsfor the H8Computer, H84 Four-PortSerial Interface, Hi4 Line wil84;Shpg.wt.3lbs, "....250.00 Printer,WH8-16 15K Wired Memory Board, H19 CRT Terminal and H8.17 AdapterCable lor Usewith H84 Four-PortSerial Interface. Provides EIA 0perating.Software. Then, deduct 925.00 from the purchaseprice (not in- industry.standardelectrical and mechanical interface between H8-4 Four-Port cludingshipping and handling charges) when you order an H8Computer. SerialInterface and other peripherals. HM800Manual Set, Shpg. wt. ll lbs. ...25.00 lYll84l,Shpg. wt. I lb...... 15.00 N0IE:lndividual manualsare included with each kit.

H11Aaccessories, software and interfaco$ add flexibility I ModilicationKitfor HI1/WHl'land llllA/WHllA Computers. This special mod- Assembledand tested version ol Hll-5Serial Interlace. ificationkit placesthe line time clock switch on the tront panel for easier ac- WHll.5,Shpg. wt. 1lb...... 160.00 cess.lt's easy to assemble and includes anentirely new front panel. I l(it Shpg.chgs. prepaid ...... 53.50 AdapterCable for Hll-5 SerialInterface. Provides EIA industry standard elec- 830-35, - tricaland mechanical interface between Hll-5 Serial Interface and other com- 4KMemory Expansion Module. This module plugs into the backplane ofthe Hl1 putersystem peripherals. For use with H11/H11A computers. Fully assembled orHllA Computers.lt adds 4K x l6-bitword capacity t0 memory.Uses high-re- andtested. ltH1l.51, Shpg. wt. I lb...... 15.00 liabilitylK x 4 staticMOS RAM chips. Access time is lessthan 500 nS. Module containsdecode circuitry for operationon 4K addressboundaries, and has a 16Kilemory Module. Provides 16K dynamic MOS random access memory 0n a handlefor easv installation and removal. 5" x 8Yz"board. Has on-board refresh, cycle time of 570nS and access time of l(it1l1l-1, Shtig. wt. 2 lbs...... 135.00 250nS. Fully assembled and tested. Fully expand memory with only two of these boards!Maximum memory capacity ofH11A is 30K words. Assembledand testEd version of 4l( Memory [xpansion Module. WHAll'16,Shpg, wt. 2 lbs...... 480.00 WHll-l,Shpg. wt. 2 lbs...... 160.00 Parallallnterface. A general-purposeparallel interface featuring 16 diode. 32KMemory Module. Provides 32K words dynamic MOS random access memory, clampedlatched data input llnes,16 latched output lines, iGbit word or 8-bit byte withsame 570 nS cycle time and 250 nS access time as WHA11-16 l6KMemory datatransfers. Has LSI-11 bus interface and control logic for interruptprocess- Moduleabove. Fully assembled and tested. Fully expand memory with just a ingand vectored addressing. Control status registers are compatible with PDP.Il singleboard! Maximum memory capacity ofHllA is 30K words. softwareroutines. Four control lines for output data ready, output data accepted, WtlAll-32,Shpg. wt.2 lbs...... 995.00 inputdata ready and input data accepted logic operations. Maximum data trans- Hll'6 f,xtendedArithmetic Chip: Adds powerful arithmetic instructions to the lerrate,90K words per second under program control. Maximum drive capability, LSI-Ii,including fixed point multiply, divide and extended shifts, plus full float- 25ft. cable.Also compatible with TTL and DTL logic devices, ingpoint add, subtract, multiply and divide. Helps minimize arithmetic sub- l(itH11-2, Shpg. wt, 2 lbs...... 100.00 routines.And the Hll-6,saves memory space, too. The 40-pin dual-in-line pack- Assembledand tested vsrsior 0t H|1.2Parallel lntedaca. ageintegrated circuit (lC) plugs into a socketon the Hll/Hlll. board, Wllll-2,Shpg.wt.1lb...... 160.00llll.6, Shpg.wt. I lb. ..165.00 SerialInterface. Universal asynchronous receiveritransmitter serial interface Lookover the Manualslefore you buy. Complete manuals for HllA Computer, modulefpr usebetween LSI-II bus and serial devices, such as the Heathkit H9 Hll-l 4K MemoryBoard, H11-2 Parallel Interface, Hl1-5 Serial Interface and VideoTeiminal (see page 80) and the H36 DEC Writer ll (seepage 81). Has an H19Video Terminal. Also includes complete software documentation. Geta opticallyisolated 20 mA current loop or EIAinterfaces, selectable baud rates of tirst-handlook at theaccurate, easy-to"follow assembly manuals that take you, 50to 9600.Plugs into Hll backplane,fully compatible with PDP ll/03 and step-by-step,from unpacking io tinal plug-in. l(now your HllA Computerinside otherLSI'I1 backplane machines. Supplied with all matingconnectors. outbefore buying. And when you buy an HllA Computer,we'll deduct $25.00 fn fi11-5,Shpg. wt. 2 lbs...... : .. .115.00fromthe purchase price. HM-1100 lllanual Set, Shpg. vrt.12 lbs...... 25.00 83 HUGhas over400 exciting programs foryourcomputer :' Ihc HeathUsers' Groug laaps you up to dateon happeningsin tln llcathlit person- ' :{+tii al conputingmrld. Therc'san informative F.t'. :: J IHeath' rt I magarinc,a conplctcprogran lilrary and USCTS erchange,new product infornation and ner computingideas - allat your disposal when Croup youjoin HUG! HUGgives you all these adYantages: o Aone-year subscription to Rtllark, the quarterlt HUG magazine . Anattractive three.ring llUS linder to lroldtour magazines, software documentationattd 0lher materials /I I o Formsto suDmityour own programs to HUG oloo*. o lhe officialHUG ldentification Card / -*rdtgo . lccesst0 thellUG Sotluare library, which includes over tlll0 user- ,ss / submitted0rograms - including special utility r0utines, comDutcr. aidedinstruction, financiat pacfiages, amatcur radio applications programs,games and much more! See a morecomplete list of HUG I programstelov, right.

OnlyflUG-the Heath Users'Group-can give you all theadvant{ges above lf youlile whatyou've seen of HUGso far, chcck out this partial list andmuch, much mole! HUG puts you in contactwith other Heathkit computer owners.In fact,many HUG members are forming local groups to increasethe of'programtitles from the HUG Software library: benefitsof belonging to HUG. These benefits include: Yourown one-year su[scription to [EMarl,the quarterly nagazine of llUGthat o AccountsReceivable o QSLFile Maintenance updatesyou on the latestHeathkit computer product developments and lets o Payroll . LoopAntenna Designer HUGmembers share new hardware modifications, sofiware enhancements, ap- a Inventory o AntennaDesigner plicationsprograms and other materials with other HUG members. o TaxProgram o HandyHam Problem Solvers o DecliningInterest . PowerSupply Design A thre+ring,looseleaf HU0 linder loaded with information tlnt helpsyou get . MortgageTables o 0p-Amy0ircuitDesign thenost lrom your mem[ership in HUG, and gives you a placeto storesoftware r LoanAmortization . MorseCode Review documentationandback issues of REMarkmagazine, aswell as other materials. o AccountsPayable o RTTYSend/Receive llUGprogram submittal lorms that enable you to shareyour unique programs o RealEstate Depreciation o Solid-StateAmplifier Design withother HUG members by submitting them to theHUG Software Library. e SmallBusiness Package . WeatherForecasting r HomeEudget Maintenance o DiskTransfer Systems An opportmityt0 competcfor valualleprizes in HUGsoftware contests. o PersonalAccounts Payable o BASICRenumbaring Programs Ihe officialHUG ldentification Card, which entitlqs you to all of the special r CheckbookPrograms o Create-A-Program benefitsthat are available only to HUG members. . Finance o InteractiveData Base . CreditCard Management o WordProcessor lnd accessto the hugeHUG Software Library, a constantlyupdated and ex- . PeakBudget Demand o 8080Emulator pandediibrary which now has more than 400 user-submitted programs. lmagine o DepreciationCalendar . CHISquare Multisort between30 and80 programson a tapefor nominalreproduction and distribu- o StockReporter .octal/Ascll Dump tioncost. Software documentation and disks are also available. The HUG Soff o StockMarket Game o FileMaintenance wareLibrary includes a diversifiedcollection of programs,subroutines and o BASICTutor r ModemDrivers procedureswritten by membersof theHeath Users' Group. Whether you're an o SpaceWars o Pilot amateurradio buff, a businessmanor just interested in playinggames, you find o StarTrek . Blackjack a programfor youin theHUG Software Library. The contents of theHUG Solt- o Biorhythms o Football wareLibrary, including computer-assisted instruction, business applications, personallinance programs, amateur radio programs and games, are described part in theHUG Software Library Catalog, which is of theinitial HUG member- llUGmembership application information and detailsare includedrith your shippackage. Each HUG Soltware Library program is listedby its author,pro- pick gram program, Heathcomputer-or upan applicatiol at anystore. Hll ownersare also name,a shortdescription of the language,version and equip- in DECUS,the Digital Equipment Computer User's Society. mentrequired to runthe program. eligiblefor membership

IIIIIIIITIIIII 'l Personalizeyour kits with ilris Engrayed Brass llame Plate c0ilPt"EI[,Tilrs sptGtAL onDEn roRm Ailo Bnrile r0 Yount0GAt HEAIHXIIEUCIROIIIC CEIIEN. PUAISE PRIilT YOUR IIAtrE PI,AIIIIY It{ 0AP|TALLEIIIRS, Uslle A milrum 14CHARACTIffi 0XCLUDD|6 I $160 eilhtor St00 satccnlfl€o BY ! spActs)N iltE B0xEsPRoYIDED 8Et0W. l I 2ornorr G torone t ,J0liN .iDliES Pfeaseenter my order tor -GDP-7225 nameplates. The price is $2.00 T for one,$1.60 each for trvoor more(including postage and handling to yourHeathkit Electronic Center). T Personalizecach lleathlit projcctrith orc 0f thes! harftonc, eqraled namcphes. tach is doncin solid lrass ritt lrus[cd jcrclcr's linish I andis sclf-adhcsivelacled for easyapplication. To or&r, simpltcom- pletcform at left andtiw t0 thc llcathtitBectronic Ccnter clart rhcn anyragular lit fromt[ir catalog. Code- I tou ![chas! cw oltr EmrnEFonr 0x 00TlE0ulrE liD aTTAcHr0 Younf,lr 0nDER 84 ! Learnto spealcyour computerts language lleathlritSelf-lnstruction HeathkitSelf-lnsfr uction ProgramlorAssembly ProgramforBASIC Languagecomputing languagecomputing %9ru $39s5 o Use$e lull capacig o BISIC* tie easicstof of yourcomputer systen all langu,agesto rrite o Hecuteyour conputer o l{owBASIC is oneof tha programstaster easiestlanguages to learn o Storsmors inlormation . Hundredsof programs in lessspace areaYailable in BASIC

A$emblylanguage is the mostpowerlul language that can be usedon any Morecomputer programs are writtenin BASIClanguage than any other com. Gonputcr.Anything that can be donein anyother language on a particularcom- puterlanguage. lt's theeasiest computer language to write-and theeasiest pptersystem can be done in Assembly Language. computerlanguage to learn. Assemblyis a trueprogramming language, not just a convenientnotation for EASIC- usesfamiliar English words which cause the computerto perform machinecode. The use of labels,computed operands, comments and assembler standardizedoperations. When a numberof thesewords are strung together to directivesallows the Assembly Language programmer to create a sourcecode forma program,the computer performs each of thespecified operations in turn thatis adaptableto the system and easily read. Assembly includes a mnemonic t0 c0mpletewhatever task the operator desires. for everymachine operation. There is noneed for programmedmemory, no time Whenyou know BASIC Language, you can adapt and run hundreds of existing wastedin interpreting.Soyour programs run much faster. computerprograms to meetyour specific needs. You can exchange computer Youcan use your conputer system's memory more elficiently when you use programswith others. And you can write your own original programs. AssemblyLanguage. lt stores more data in lessspace because codes are shorter Ihe lleathkitBASIC language Selt-lnstruction Program covers all BASICLanguage andmore explicit. By usingcomputed origin statements and other assembler versions,formats, commands, statements and procedures, plus special problem- directives,you can make an Assembly Language program operate wherever the solvingtips that youcan use when you write your own computer programs. computerhas space. The use of meaningfirllabels for subroutines,along with In thetwo sections of theHeathkit BASIC Language Program, which are divided as many.remarks.or.commentsas youdesire, make a programlisting-quite into a lotal of 14 easy-to-follogvprogrammed instruction segments, you will readableinAssembly Language. learnall of the standardizedwordq of the BASICLanguage, and you'll under- ||neof the.mo.stimportant and uselul requisites ol a programminglanguage is standthe operationthat each word causes the computer to perform.You will thatit beflexible, not dependent upon specific addreiseiand haidwari oithe geta graspupon the tools of BASICLanguage computer programming, including computer,ln an AssemblyLanguage program, hardware specifications can be thenumbers, statements, functions, loops, lists, arrays and stlings. made-at.the beginning of theprogram and referred to symbolicallythrough the program. TheHeathkit Self-lnstruction Program will helpyou understand the importance restof the Inthis way, changes can be located together -- easily. of propersyntax in BASICprogramming, and why the computer needs'another TheHeathkit Assembly language Self-lnstruction Program teaches you to pro- programthat can interpret the words it readsand Derform the desired operations. gramyour computer in AssemblyLanguage. You learn the detailsa-t your bwn part pace, Ihe second of theHeathkit BASIC Language Self-lnstruction Program teaches througha special400-page text designed for self-study. An exercise work- youthe-creative aspect of writinga computerprogram. Using the tools you learn boolprovides hands-on experience with programming exeriises-you perform you'llparticipate your in the first section, in the decision-makingfactors that are eachexerc,se on owncomputer system. The programmed instruction text partof writinga meaningfulcomputer program, one that really does something. and.w0rkb00kareso thorough that you can learn to programyour computer by ihe Programwill teach you useful computer programming techniques, such as studyingthe text andtest questions.To performihe-optional experiments, howto plan program, gaining deJineand a howto formatand writb a computerprogram whichare.necessa.ly fog thelull benefitof the HeathkitAssdmbly Lan- in BASICLanguage and how to adaptexisting programs to suit your needs.- guageSelf-lnstruction Program, you must have a computer andfor 280cbmou- Ihe coursematerial includes which ters(the 8080 instruction set is essentiallya subset of the280 instruction sit). a textbook explainsthe BASICLanguage, progran usinga technique.calledprogrammed instruction. This teaching method makes Ihe lleathkitlssembly languag! Selt.lnstruction is designedfor com- sureyou completely understand the information presented puhrs-g9r1g popular in thatext. A soecial the 8080/8085microprocessor series, which uses standard workbookprovides programming instructions and experiments that you can per- Intel8080 mnemonics. This includes the Heathkit H8, H88 and fi89 Comouters. lorm0n your own computer. Alongwith the proEammedinstruction ten andworkbook, the AssemblvLan- Alsoincluded with the Programare handy reference cards for BentonHarbor guageProgram also includes a specialReference Placard,Placard,'wtrictr which containscontaiiiiil all BASICStatenents, ASCII number codes, BASIC direct command statements and 244assembly instructions for easyreference. The other side of theRelerence a referencechart for math and Boolean algebra operations. Placardcontains the ASCII code chart. lf youdecide to takethe optional final examinationexanlnatlon passyvith percent Whilethe EASIC prugram is key-ed-toHeatlrkit computers, it's equallyapplicable -an-d.passand with a scoreof 70 or better,you will earna to anycomputer Certificateof Achievementand 6.0 Continuing Edu- systemusing BASIC. And with our BASIC Language Prblram, a cationUnits (CEU$. computerlanguage has never been easier or more funto learn. llith theHeathkit Assemily !anguage Sell-lnstruction Pr0gram,it's never Money-Back Passingthe Program'sfinal exam00% or better beeneasier or morefun to learn 0uarantee you themost versatile, most powerful computer language. score)will earn a Certificateof Achievement Theprograms onthis page carry a and3.0 Continuing Education Units (CEUs). llowis thetime to learnthc computerlanguage that completerefund of the purchase price, you putsyou in commandofyour computer's fulf potential. Until know8ASlG, you're missing the full selec- if you'renot satisfied. tion of computerprograms available to you.Begin Stopat a HeathkitElectronic Center today and ask the HeathkitBASIC Language Self-lnstruction Pio- aboutthe Assembly Language Self-lnstruction Program. gramtoday. EC-l|m,Shpg. wt. 7 lbs...... 49.95 Ec-1100,Shpg. vrt. 7 lbs...... ".11 o5 Learnmore about youl computer Accessoriesmalce computing easier systemwith tftese books lHi

Introductlonl0 ilicroprocossors,Volumo L An in- troductionto the basicmicroprocessor. EO?-224 ....9.50 Setthg tcq!.iilod Uith llicroqomputerc.A basic guideto whatmicrocomputers can do, EDP"275...... 8.05 8080 Machinel,rnguagc Programming for Eegin- ners.A comprehensiveguide to 8080 machine lenguageprogramming, written for beginners. EOP-?7?. ....t.95 P0P-ll Programmingtundament ls. Howto pro gramyour PDP-Il computer with Assemblylan- guageand get the most out of it. EDP.239...... 10.00

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