F W Bell Model 4048 Manual Treadmill

12/22/2017by

Full text of ' A WAYNE GRttN PUBLICATION Will IBM, Xerox Deliver? Color for Your • • • Introducing COLO/?AMA-50 Percom's SS-50 Bus Color VDG Featuring... • Eleven display formats including 8-color semigraphics, 4- color graphics, 2-color high density graphics and 2-color alphanumerics. Moreover, two- and four-color displays may be switched between primary and complementary color sets under soft- ware control or from the keyboard. Full graphic resolutions range from 64 x 64 picture elements to 256 x 192 picture elements. • Instant display control: The COLORAMA-50™ is memory mapped: your MPU has direct, instant access to display RAM and display control registers. • Low-cost Modulator Option for Color TV Interface: The COLORAMA-50™ provides for installation of an inexpensive RF modulator such as Radio Shack PN 277-122 for operation using a color TV.

SS-50 Bus Department Store Nobody supports the SS-50 bus like Percom J SS-50 Bus/Single-Board Computers with I/O ports & memory y Static and Dynamic RAM cards — memory expansion kits J LFD-400/800 1. 2- and 3-drive mini-disk systems J Color and monochrome memory-mapped display controllers J Extendable 7-slot SS-50 bus motherboards l Versatile prototyping boards. SS-50 and SS-30 bus J Field-proven software: monitors, operating systems, drivers, editors, assemblers, debuggers and HLLs. For quality Percom SS-50 bus products, see your nearby authorized Percom dealer.

To order direct, call toll-free, 1-800-527-1 222. Prices and specifications subject to change without notice.

Prices do not include shipping and handling. Mix in Sound: With the optional modulator in- stalled, you can comple- ment your colorful displays with software -controlled audio. Introductory Price $219.95 • Extended Addressing: The COLOft4A# -50™ is compatible with the SS-50A bus and the extended-address SS-50C bus. Map the board into any of the sixteen 64-Kbyte banks of the 1-Mbyte SS-50C address space. The COLO&4MA-50™ card 'defaults' to the first (lowest) bank for the SS-50A bus.

• Cassettee I/O Option: Add a few inexpensive components to the on -card circuitry provided and use an audio cassette for program/data storage. • Provision for On-Card Firmware: Put your display operating system, cassette control program, etc. Right on the COLORA- MA-50™ card in a 2516 (5-volt 2716) EPROM. Resides in the top 2-Kbyte of the card memory space. • Operating Software: Included in the comprehensive users manual is a listing of a display operating system and cassette controller that may be implemented as a callable subroutine function from BASIC or existing operating systems. The programs are optionally available in a plug-in ROM for just $69.95.

Comment3, nec e6200 laptop reviews, 8], nebo and resturant and boston, 48572, nec dtu-8-1 parts manual, zsgldc, neat cleat attwood, 0568, neapco products,:-]]. 8-))), b18.3.1m, dwxfwy, b rse br ssel,%PPP, b z o spider,:-(((, b vitamens, >:-((, b witched jump down mp3, afcn, b-29 model bell x-1 launch,:]], b reasts, 751. Apr 10, 2005. James Batson 2. Bobby Taylor 4. Johnny Sanders 5. Bob Mascarelli 4-Cylinder Bomber 1. James Pate 2. John Crichton 3. Donald Guy 4. Proform Treadmill Needs work (352) 726-5937. THE HOME STORE a Habitat for. Humanity of Citrus County Outreach, Is seekig Donatlcrsof use- able.

F W Bell Model 4048 Manual Treadmill

System Requirements The COLOR4MA-50™ is pin- and outline-compatible with the Percom System-50™ bus, the SS-50A (SS-50) bus and the SS-50C bus. The composite video-sync signal output will directly drive a color (or BW) video monitor. The output may be mod- ulated for operation with a standard (NTSC) TV set.

A modulator is not included. The COLOft4MA-50™ card occupies 8-Kbytes of memory in the upper half of a 64-Kbyte memory space. Included on-card is 1-Kbyte of display RAM which will accommodate alphanumeric displays, semigraphic displays and two low-density full-graphic displays. For the higher density graphic displays, additional display RAM is required. The option- al RAM ICs may be installed on the card.

PERCOM DATA COMPANY, INC. 1 1220 PAGEMILL RD DALLAS.

TX 75243 (214)340-7081 S 1 PEfiODM J ™ trademark of Percom Data Company. Most small system users think all micro- imputers are created equal. And they're )ht. If you want performance, convenience,:yling, high technology and reliability (and ho doesn't?) your micro usually has a price ig that looks more like a mini. It seems big irformance always means big bucks. But )t so with the SuperBrain! Standard SuperBrain features include: twin wble-density 5%' drives which boast nearly 1,000 bytes of disk storage - expandable 10 megabytes.

A full 64K of dynamic M. A CP/M* Disk Operating System to;ure compatibility to literally hundreds of iplication packages presently available. And, 12' non-glare, 24 line by 80 column screen. You'll also get a full ASCII keyboard with an 18 key numeric pad and individual cursor control keys. Twin RS232C serial ports for fast and easy connection to a modem or printer. Dual Z80 processors which operate at 4 MHZ to insure lightning-fast program execution.

And the list goes on! Feature after feature after feature. Better yet, the SuperBrain boasts modular design to make servicing a snap. A common screwdriver is about the only service tool you'll ever need. And with the money you'll save on purchasing and maintaining the SuperBrain, you could almost buy another one.

For under $3,500, it is truly one of the most remarkable microcomputers available anywhere. Whether your application is small business, scientific, educational or just word processing, the SuperBrain is certainly an exciting solution to the small computer problem. And since you can easily expand it, you'll probably never outgrow it. Call or write us today for a complimentary copy of our 'SuperBrain Buyer's Guide.' We'll show you how you can get big system per- formance without having to spend big bucks. 3 _ NTE3TEC ['DATA SYSTEMS.

^3 2300 Broad River Rd. Columbia, SC 29210 (803) 798-9100 TWX: 810-666-2115 I tnoemj/* of ugtui HMenct mc TM X. IMTETOC DATA SYSTEMS SUPt^RAlN,1.1 it ■ MICROCOMPUTING PUBLISHER/EDITOR Wayne Green EXECUTIVE VICE PRESIDENT Sherry Smythe EDITORIAL MANAGER Jeff DeTray PUBLICATIONS MANAGER Edward Ferman MANAGING EDITOR Dennis Brisson ASSISTANT MANAGING EDITOR Susan Gross COPY EDITOR Eric Moloney TECHNICAL EDITORS Harold Nelson G. Michael Vose EDITORIAL ASSISTANTS Lise Markus, Linda Stephenson ADMINISTRATIVE ASSISTANTS Pat Graham, Nancy Noyd ASSOCIATE EDITORS Robert Baker, Ken Barbier, Frank Derfler, Jr., Rod Hallen, Peter Stark, Sherm Wantz PRODUCTION MANAGER/PUBLICATIONS Nancy Salmon ASSISTANT PRODUCTION MANAGER Michael Murphy ADVERTISING GRAPHICS Steve Baldwin, Dennis Christensen, Robert Drew, Bruce Hedin, Jane Preston PRODUCTION DEPARTMENT Joan Ahera Frances Benton, Fiona Davies. Linda Drew, Bob Dukette, Sandra Dukette, Kenneth Jackson, Pat Mackowsky, Theresa Ostebo, Sharon Phinney, Dianne Ritson, Deborah Stone, Susan Symonds, Anne Vadeboncoeur, Irene Vail, Judi Wimberly, Donna Wohlfarth PHOTOGRAPHY Terrie Anderson, Paul Babich William Heydolph, Thomas Villeneuve TYPESETTING Sara Bedell, Michele DesRochers, David Hayward, Stephen Jewett, Mary Kinzel, Kelly Smith, Karen Stewart DESIGN CONSULTANTS Invisible Inc. Elaine Cheever, Corporate Designer Denzel Dyer, Howard Happ, Laurie MacMlllan, Joyce Pillarella, Susan Stevens EXECUTIVE ASSISTANT Leatrice O'Neil ACCOUNTING MANAGER Knud Keller DIRECTOR OF MARKETING 603-924-7296 Debra Boudrieau CIRCULATION Doris Day, Pauline Johnstone, Dion Owens, designer BULK SALES MANAGER Ginnie Boudrieau ASSISTANT TO THE PRESIDENT Matthew Smith ADVERTISING 603-924-7138 Louise Caron, John Gancarz, Susan Martin, Hal Stephens, Marcia Stone, Office Mgr.

APPLICATIONS 62 Take a Byte Out of Your Energy Bills Paul Boudreaux Give your home a thorough energy analysis. BUSINESS 148 In Search of the Perfect Z Gene Emory Evaluate the performance of your business with Z-charting. GENERAL INTEREST 164 A Salty Saga cariecoiiins Sailors go down to the sea, with their micros.

HARDWARE MODIFICATIONS AND PROJECTS 32 Everyman's Computer System j McKownssams A single-board computer with broad appeal. 56 Poor Man's Memory Expansion for the OSI johnYoung Inexpensive memory expansion for the Superboard II or Challenger C1P. 76 Printing Wizardry for Your Sorcerer Ernest Bergmann Hardware and software to interface a Teletype to your Sorcerer. 1 32 The Best of Both Worlds Gordon woite Let your digital machine tune into the analog world.

1 74 A Spacesaver for the Bytesaver II George Losey Quick and easy modification to put the Bytesaver in its place. OSI Sorcerer PROGRAMMING TECHNIQUES 50 Popping and Pushing Permutations in BASIC Kenneth wasserman An elegant solution to unscramble word puzzles. 104 Recursion: Solving Age-Old Mysteries Doug MacDonaid Use this programming technique to tackle seemingly insolvable puzzles. 170 More for the XOR Allan Pratt A little-known Boolean operation that can be used in a variety of ways. PET Page 86 Page 52 1 4 Microcomputing, December 1981 Contents: December 1981 Volume V No.

12 Superbrain Apple IBM Xerox Xerox SWTP Lawrence Bregoii The Secret World of the Superbrain Intertec offers you another choice which is worth considering. David Goodfeiiow Data Capture: Who Needs It? For use with your Apple for telecommunications. G Michael vose IBM Thinks Small Their 16-bit Personal Computer will give the micro industry a boost.

Harold Nelson Another Industry Giant Takes a Micro Step Xerox introduces the Information Processor for the business environment James Nestor Brand-Name Shopping A look at the machine behind the label. G Michael vose Japanese Invasion: Part 4 A wrap-up on the growing Japanese presence in the micro marketplace.

Dennis Doonan Relief for an Overstuffed SWTP The QRC motherboard is the solution to system expansion. REVIEWS 52 80 86 94 95 140 144 68XX Apple TUTORIAL Peter stark 68XX Secrets 116 A report on Dynamite and building a 48K 6809 system. UTILITY Paul Hitchcock Stamp Out REMs 112 Speed up program execution and free up memory space. Aankhon Mein Teri Ajab Si Video Download. Publisher's Remarks-6 Micro Quiz-12 PETpourri-14 Dial-up Directory-20 Computer Blackboard-24 Micro-Scope-26 Letters to the Editor-30 Dealer Directory- 178 DEPARTMENTS Club Notes-180 Classifieds-180 1981 lndex-182 Calendar-214 New Products-216 New Software-222 Software Reviews-228 Book Reviews-232 Perspectives-242 Page 94. This month: Microcomputers: Toys or Tools? Much has been written (in publications such as Time, Business Week and The Wall Street Journal) about the signifi- cance of the entry of IBM and Xerox into the realm of microcomputing. These giants have determined that microcom- puting has reached a level and rate of growth sufficient to find it profitable for them to enter the market.

How will these big-name microcomputers affect sales of established microcomputer manufactur- ers like Apple and Radio Shack? Regard- less of immediate effects, the long-term re- sult should be a boon to the entire indus- try. This, in fact, is the real question: Will the expectations of the industry come closer to realization because IBM and Xerox are now a part of the industry?

The entry of major computer companies into personal computing should definitely have a legitimatizing effect on the in- dustry. The general public and. More im- portantly, the overall 'computer com- munity' will have to take a more serious look at what we are doing in the microcom- puting field, which is rapidly becoming a major industry. It has been disconcerting to meet recent computer science graduates who have never worked with microcomputers. Some are completely unaware that a microcom- puter industry exists. More unsettling is the view of many in the computer indus- try, manufacturers and consultants, that the micro or personal computer is a toy that can do nothing serious.

The new major micro manufacturers have not introduced industry-revolutioniz- ing products from a technical point of view (though IBM's use of the 16-bit 8088 pro- cessor with an eight-bit data bus results in a machine that should bridge the gap be- tween older eight-bit and newer 16-bit mi- crocomputers). But will they change the industry in other ways? We'll keep you up- dated on new software and peripherals for their computers. — The Editors This month's cover: Photo by Lighthearted Studio. Special thanks to Computerland of Nashua, NH, for their assistance in preparing this month's cover. Kilobaud Microcomputing (ISSN 0192-4575) is published monthly by Wayne Green, Inc., 80 Pine St., Peterborough NH 03458. Subscription rates in U.S.

Are $25 for one year and $53 for three years. In Canada: $27 for one year only, U.S. Foreign subscriptions (surface mail)— $35 for one year only, U.S. Foreign air mail subscriptions —$62 for one year only, U.S. Canadian Distributor: Micron Distributing, 409 Queen St. West, Toronto, Ontar- io, Canada M5V 2A5.

In Europe, contact: Monika Nedela, Markstr. 3, D-7778 Markdorf, W.

South African Distributor: KB Microcomputing, PO Box 782815, Sand- ton, South Africa 2146. Second-class postage paid at Pe- terborough NH 03458 and at additional mailing offices. Phone: 603-924-3873. Entire contents copyright 1981 by Wayne Green, Inc. No part of this publication may be re- printed or otherwise reproduced without written permis- sion from the publisher. Microcomputing, December 1981 5 PUBLISHER'S REMARKS By Wayne Green Devastating Truth About Minis Mini Squeeze With some amusement I read the arti- cle in the Sept.

28 Business Week ex- plaining that the minicomputer pioneer- ing firms are being hit hard by the grow- ing market for microcomputers. A sig- nificant number of people have been buy- ing $5000 word processors rather than the $15,000 models (which do precious little more).

These are the same folks who have been walking through the microcomput- er section of the NCC exhibits for the last three years sneering at the toys. They are the same aloof folks who have not both- ered to read this magazine and its edi- torials warning that just this would be happening...and soon. I predict that there are going to be a lot more traumatized minicomputer firms and their attendant support software and peripheral firms as the word spreads about what our microcomputers can do... And how inexpensively. Wintv V7 Iso Rapidshare Files. Several factors are ganging up on the mini people which can't help but force many of them out of business.

One of the 6 Microcomputing, December 1981 more decisive of these is the general media's growing interest in micros, which is bringing the word of this low- cost computing power to businessmen. Aiding that are publications such as our new Desktop Computing which tell the businessman in plain language what these small computers are doing for oth- er firms...

And by extension what they can do for him. Another important factor is the normal human tendency to try to keep the world from changing. Most firms go along spending 100 percent of their efforts try- ing to solve present time problems with the result that when a major change in technology comes along it can upset everything.

With emphasis on develop- ing some immediately needed software or an accessory, and on getting the sales department to get a slightly larger share of the market, few firms have anyone with the time to notice an approach- ing catastrophe. Add to that the wonderful successes most of the mini firms have had, which have focused their attention on produc- tion and incremental changes in the product. The problems have involved keeping up with the demand and making deliveries, not coping with a competitor coming in from left field.

Minicomputer (and maxi) firms have been blinded, too, by the power of their equipment. They have not stopped to look carefully at the micro growth and noticed that these seemingly insignifi- cant toys have been growing in their abil- ity to tackle real work.

Micro manufactur- ers have had to endure the overbearing attitude of the mini firm people at NCC ever since they started trying to show their systems. They would come by in small groups, making snickering re- marks to each other and then go back to the main exhibits where they were com- fortable with 'real' computers. The Mini Role If the minicomputer firms are going to weather the next few years, they are go- ing to have to get their people together, look closely at microcomputers and fig- ure what segment of the market their systems fill which micros can't. There is both good news and bad news for the minis. The bad news is that they can expect micros to be used for most of the smaller firms around the world... And thus there is a far larger overall mar- ket for micros than for minis. They can also expect to lose most of the desktop market, even in the larger firms, as busi- nessmen opt for a combination comput- er/terminal rather than just a terminal.

The good news is that micros will bring computing to everyone, and the need for the more powerful mini systems will be better recognized. Larger firms will find that micros are too slow for their needs and move to larger and faster systems. Businessmen will be able to do most of their work on a micro, but will need a host mini for some specialized applica- tions such as number crunching, large databases, networking and so on. Until the mini people take off their blinders and put their systems into per- spective from the viewpoint of the busi- META TECHNOLOGIES 26111 Brush Avenue, Euclid Ohio 44132 CALL TOLL FREE 1 -800-321 -3552 TO ORDER IN OHIO, call (216) 289-7500 (COLLECT) ^ 161 333 pages THINGS TO DO WITH YOUR PERSONAL COMPUTER BV MARK SAWUSCH $7.95 333 pages, written in simple terms, of 'what-to-do' and 'how-to-do-it'. Suitable not only for microcomputers, but for pro- grammable calculators as well. Includes program listings, formulas, a glossary of computer terms and more! Definitely a MUST BUY!

A PARTIAL LIST OF APPLICATIONS Real Estate Evaluation Test Your Typing Speed Astrology Income Tax Speed Reading Personality Test Statistical Analysis Logic Circuit Analysis Carpenter and Mechanic's Helper General Purpose Clock Timer Finances & Investments Biorythm Energy Efficiency Antenna Design Letter Writing Recipe Index/Calculator 'OTHER MYSTERIES' VOLUME III by Dennis Kitsz Call now and place your order for this new book, 'THE CUSTOM TRS-80™ & OTHER MYSTERIES', from IJG, Inc. More than 300 pages, with over 60 photographs, of projects for the hardware hobbyist. In- cludes schematics, PC layouts, software driver code, etc. For such do-it-yourself undertakings as high resolution graphics, reverse video, realtime clock/calender, music synthesis, ROM/RAM additions and more! THE CUSTOM TRS-80™ $29.00 CALL FOR AVAILABILITY MICRO PA RA PHERNA LI A NEWDOS by APPARAT NEWDOS/80byApparat $139.95 NEWDOSUPGRADE CALL NEWDOS + with ALL UTILITIES 35-track $69.95 40-track $79.95 BOOKS TRS-80™ DISK AND OTHER MYSTERIES.. $19.95 MICROSOFT™ BASIC DECODED $24.95 EPSON MX-80, MX-80FT, MX-100 PRINTERS CALL FOR PRICE 10 FT. RIBBON CABLE CONNECTS EPSON PRINTER & TRS-80 MICROCOMPUTER DISK DRIVE EXTENDER CABLE for VISTA, MICROPOLIS, MTI, PERTEC, SHUGART, PERCOM& OTHERS Let your TRS-80™ Test Itself With THE FLOPPY DOCTOR & MEMORY DIAGNOSTIC by David Stambaugh A complete checkup for your MODEL I or MODEL III.

THE FLOPPY DOCTOR-Version 3 completely checks every sector of single or double density 35-, 40-, 77-, or 80-track disk drives. Tests motor speed, head positioning, controller functions, status bits and provides complete error logging. THE MEMORY DIAGNOSTIC checks for proper write/read, refresh, executability and exclusivity of all ad- dress locations. Includes both diagnostics and complete instruction manual. SYSTEM DIAGNOSTICS $24.95 For MODEL III $29.95 Single Sided, Soft-Sectored 5 '/i -inch, (for TRS-80™) Mini-floppy DISKETTES 95 box of 10 PLAIN JANE ™ These are factory fresh, absolutely first quality (no seconds!) mini-floppies. They are complete with envelopes, labels and write- protect tabs in a shrink-wrapped box. PLAIN JANETM Diskettes $19.95 PLAIN JANE™ I ORS-256 (256 Character Memory)..$109.00 MSP-100 (Unbuffered, Switch Select Data Rates) $120.00 SP-200X (200 Character Memory) $215.00 SP-2000X (2000 Character Memory) $300.00 [ther available options: ljustable Tractor Feed - odel 54100201 $ 50.00 TIS-80 Parallel Output, ble to printer $ 35.00 fcons $ 3.00 ASK FOR OUR INSTANT DISCOUNT From Roy Hawthorne Talk To Bill Tokar On Applications CALL TOLL FREE U.S.A.

1 -800-521 -J MICHIGAN 1-800-482-1 r? V^// into a Word Processing or Data Processing System by adding one of the NEW Okidata Printers Microline Microline 83A 82A If you require a system printer, the new Okidata Microline 82A, 83A, 84 should be your choice. These printers feature: • 9 x 9 Dot Matrix heads rated at 200 million characters continuous duty - true lower descenders • Full forms control - vertical tab, top of form • Block Graphics • Bidirectional, Short Line Seeking • Dual Interface - Parallel & RS-232C Serial Microline 82A - 80-column, LIST 120 characters per second $ 649. Tractor Optional $ 50. Microline 83A - 136-column, 120 cps, built-in tractor $ 995. Microline 84 - 136-column, 200 cps, built-in tractor $1395. Optional Serial Interfaces - RS-232C: HS-RS232 - 256 Character Buffer $ 150.

HS-RS232 - 2K Character Buffer $ 180. K Iff ^■■^fcC^V A Remember: We are open 8:30 AM to 6:00 PM EST Monday — Friday master charge IMo Credit Card Penalty 'The Stocking Source' 24069 Research Drive Farmington Hills, Ml 48024 313-474-6708 -296 sSee List of Advertisers on page 210 Microcomputing, December 1981 11 though the Whole Earth people have called me a fascist for this. I figured that it would take something substantial to break down the normal reluctance to be involved, even when a crime is being perpetrated. $10,000 can do a lot of things for you... Such as an all-expense paid trip around the world for two... Or a very big microcomputer sys- tem. The main purpose of the large re- ward was to discourage stores from giv- ing away copies of Instant Software pro- grams.

Also schools, clubs and so on. These thefts are not penny -ante, by the way. The New York caper has been esti- mated to have cost Instant Software in the neighborhood of $750,000 in sales so far, while that summer camp theft has been estimated to be over $500,000.

You may be sure that should we get someone to come forth and testify against a store, a manufacturer, a school or a club that the damage claims will be substantial. Speaking of clubs, if you are a member of an unincorporated computer club and that club is engaged in swapping pro- grams, you should know that you can be sued as a member of the club, even if you had nothing to do with the program theft.

If a software publisher sues a club, they will, in all probability, go after every member of the club... And particularly be on the lookout for any members with assets which will make them more sue- able than the others. Incorporated clubs are a bit safer, but you are asking for it if you belong to any club which engages in program theft. I am looking for anyone who will come forth and bring evidence of the copying of any Instant Software package. Copyright infringement cases are not difficult to prove and there is a long line of court cases where large awards have been given.

I know of some map pub- lishers who make hundreds of thousands of dollars in such awards every year... Mostly from small firms and clubs who have innocently used a map in their advertising or promotions, but not reckoned with the copyright problems. The penalties can be stiff.

All out of proportion to the crime. Before I succumb to pressures from the Instant Software people to encode pro- grams so they can't be listed. Or even go to a system which will require a hard- ware gadget as part of the decoding. I think it's worth a big try at getting the cooperation of Microcomputing readers. Please keep your eyes peeled for any program theft. If you run into it I would appreciate a letter.

If you are chicken and are afraid to openly blow the whistle, either don't sign the letter or ask for con- fidentiality. I would much prefer you go for the $ 10,000 and work out a system for getting a program copy which will stand up in court when we go after the thieves. You may want to use a hidden tape re- corder (I always have a microrecorder with me), a friend with a small camera...

Or the cooperation of a friend in testifying. The very least we can do at the present is make it quite clear that when anyone gives or gets a program from a friend, in a store, at a club, in school, etc., that both parties are well aware that this is a theft... That the penalties are severe and not a casual matter. You may be sure that no one is going to enter a suit for any small amounts...

They will be big, even against individuals such as school children. Just the legal costs alone could put a good percentage of the computer stores out of business. Should you find yourself tempted to run off a copy of an Instant Software pro- gram for someone, be awfully careful that he is not entrapping you for that trip around the world for two. He can always find new friends, but how often will he get a trip like that?

Anticopy Programs There is a need for a good deal more work on both the simple hardware solu- tion to the copying problem... And a possible software solution. Perhaps it is getting time to just forget about trying to work with honest people and prepare products to thwart the crooks. Yes, this will make it very difficult to ever make any changes in the program... Or to use it as a teaching tool to learn more about programming. It will also prevent simple repairs in case you make a mistake in loading.

I don't like that any better than you... But something has to be done. What do you suggest?

U Tax Deductible Treasury regulation 1. 162-5 permits an income tax deduction for education- al expenses undertaken to maintain or improve skills required in one's em- ployment or business. Since computer literacy is a skill re- quired in virtually any business these days, a subscription to Kilobaud Micro- computing or even the purchase of a new computer would be tax deductible in most instances. MICRO QUIZ Digital Electronics Draw the most simplified circuit (the one that minimizes the number of gates used) that takes one-bit numbers as in- puts and outputs the least significant bit of their sum. Answer on page 238.

AUTHORIZED TRS 80 w DEALER #R491 V 1 ™ SCREEN EDITOR and KV 33 Corporation P.O. Box 27246 / Tucson, Arizona 85726 DATA ENTRY SYSTEM An absolute must for the serious FORTH programmer. Current tab over value and CP location displayed at all times. Deupdate command included along with other utilities. Works very well with memory mapped video.

Maintains its own 64 byte buffer that never changes location. Any text transferred to it via CTRL- Twill remain until system shut-down or another CTRL-T transfer. Message displayed when iNsert mode is toggled on via CTRL-N. A special formatted list routine included for printer output. Screen format for the List of commands: These commands are for the TeleVideo 912, but are very easily modified to match the character set or special functions keys on any terminal. DEL Delete — Delete character to left and move CP left one position.

CTRL-L Right arrow — >— CP advances one position to right. CTRL-H Left arrow — * ^-v I: 0393 I: 0396 8C 9? B9 0U 03 80 STY LDR $0397 $8000, Y $03D4 $20 I: 0399 29 7F RND =$7F Table 3. Hexadecimal values for up- I = 039B 18 CLC dating Screen Print assembly-lan- I: 039C I: 039F 2C D3 F0 02 03 BIT BEG $03D3 $83R3 guage program.

Approved Vendors List 3E Technology, Inc. Part Number & Description List: (Partial List, More than 400kb) Please note that some of the lists are quite long! Please select company by clicking on one of the characters. Or, E-Mail to: 2 DIGIT TYPE 1414 (10 PC PKG) TYPE 14 PT NOL ON 14 PT BODY ACCENT OPEC ACCENT OPEC 60 TEXT GRAM., 28 x 60 TEXT GRAM., 28 x 20' LONG GRAIN 20' LONG GRAIN PAPER ACCENT OPEC 60 TEXT GRAM MAGE, 28 FIRST CHOICE 60 TEXT GRAM MAGE, 28 60 TEXT GRAM MAGE, 28 x 20' LONG GRAIN FIRST CHOICE 60 TEXT GRAM MAGE, 28 60 TEXT GRAM MAGE, 28 x 20' SHORT GRAIN KROMKOTE 1S 6-POINT GRAM MAGE, 28 6-POINT PAPER, 28 x 20' LONG GRAIN LUSTRO DULL 80 TEXT GRAMM. 28 x 20' LONG GRAIN 20' LONG GRAIN PAPER 'LUSTRO DULL' 80 TEXT GRAMM.

28 x 'LUSTRO DULL' 80 TEXT GRAMM.

Comments are closed.