Instant Software

Your aircraft is on the runway loaded with fuel, instruments feeding the computer a constant stream of information. A glance at your flight screen gives you airspeed, altitude, and compass heading. After you take-off, the all important Ascent Descent-Turn Bank Indicator will tell you the attitude of your aircraft at a glance, whether you are climbing, diving or banking into a left or right turn. Your mission is a short one. You have a maximum possible range of about 50 miles, on one precious...

To Order

PO Box 16216 Irvine CA 92713 Add S3 for postoqe and handling CA residents add 6 sales tax mine the arrival of the first digit. The digit strobes are differentiated by RC circuits which are physically wired inside the DVM. Each circuit is an input for a diode OR circuit which then applies a signal to STB(B) at the arrival of a digit strobe-not necessarily the first one. The first digit strobe is also connected to STA(A). Since this strobe is differentiated, this pin returns almost immediately to...

Stik

Thai s right1 EsmarVs VIDIET-STIK light pen hat the TRS-80 CONNECTION for LEVEL I & II Your 4K to 48K TRS-80 System will come alive under your VIDIET-STIK within minutes of its arrival That's because there are no wires to solder or traces to cut You're up and running as fast as you can plug the interface into your system s cassette EAR-jack. CLOAD our custom LIGHTWAVE demonstration software and RUN And because the interface has a plug for your recorder, you won't have to unplug it again when...

Photography

Terrie Anderson, Tedd Cluff TYPESETTING Barbara Latti. Sara Bedell. Linda Locke EXECUTIVE VICE PRESIDENT Shefry Smythe ADVERTISING SALES (603)924-7138 Penny Brooks John Gancarz Manuscripts are welcome at 80 Microcomputing, we will consider publication of any TRS-80 oriented material. Guidelines for budding authors are available, please send a self-addressed envelope and ask for How to Write for 80 Microcomputing. Entire contents copyright 1980 by 1001001 Inc. No part of this...

From The Bottom Shelf

CHECKBOOK II (For Cassette or Diski 39 95 SYSTEM DOCTOR A complete diaqnosis of your TRS-80' Checks memory video cassette disk ROM and all other parts ot your system) CHECKBOOK REGISTER ACCOUNTING SYSTEM (Requires disk dr.vesl 75.00 LIBRARY 100 - 100 established business game and educational programs plus FREE Tiny Pilot all for 49 50 BASIC TOOL KIT Lists an variables GOTO s and GOSUB s in your proqram 19 80 SOUNDWARE - Adds sound to your TRS 80 Just plus it in 29.95 Sample proqrams included...

Ybq

EVERYTHING FOR YOUR TRS-80 TKS (M> In h irMdrmark of ihr H.idln shac k Division of l arxly < or Mir> itlon * All Orders processed within 24-Hours * 30-Day Money Back Guarantee on all Software (less a 3 penalty for handling) it 10-Day Money Back Guarantee on Disk Drives and Printers PLUS 120-Days Free Service LEARNING LEVEL II By David Lien The Original Author Ol The Level Manual A Step By Step approach to Learning Level II especially geared to new TRS-80-' Owner TRS-80 DISK AND OTHER...

Meta Technologies

MODEL I . 69.95 MODEL II . 99.95 Introducing the latest addition to MTC's family of data management systems, AIDS-lll NO PROGRAMMING, easy to use COMPLETE PACKAGE including demonstration application, documentation and MAPS-III (see below). Up to 20 USER DEFINED FIELDS of either numeric or character type CHARACTER-type fields may be any length (total up to 254 characters). NUMERIC-type fields feature automatic formatting, rounding, decimal alignment and validation. Full feature EDITING when...

Epson

23844 Hawthorne Boulevard, Torrance, California 90505, Telephone (213)378-2220 Dennis Bathory Kitsz Roxbury, VT 05669 Back in the days of huge, marvelous and mystical mainframes, computer programmers spent years creating massive utilities and procedures for their customers. You've seen the pictures. Tied-and-jacketed men huddled over computer printouts with the kind of serious demeanor normally reserved for beleagured generals. But at the end of their work, they found security the comfort of a...

Ttxt

Plug compatible lor S 100 bus systems features tuii 16 bit vector (ump address with dip selection oi 8080 or 80 Can be et to lump on power on clear reset or both Prototyping areas on the card lor ten 16 pm IC s three 4 8 pin IC s and two spare regulator patterns Cat Ne 1429 0B1 kit Cat No 1430 0B1 a it Cat No 1431 0B1 barebeard Coll Toil-Free USA (800) 423-5387 In California (800) 382-3651 Local & Outside USA (213) 886-9200

Speed Low Cost Reliability

Exatron is a California based corporation that has been in business since 1974. As well as the Stringy Floppy, Exatron designs, manufactures and sells state-of-the-art electro-mechanical equipment for a variety of commercial and industrial applications. Exatron is an established supplier of automatic test equipment to manufacturers, and large OEM users, of inte-orated circuits worldwide. The Exatron Stringy Floppy ESF is an extremely fast, reliable, economical alternative to cassette or floppy...

Info

1 was written by a p otess nai software consultant to TRW Space Systems This is a complex program caretuUy human factored tor easy use it is a com-prehensive horse racing system tor spotting overlays in thoroughbred spnnt races vourcomputer will accurately predict ttw wm pretwMity and odds Nne tor each horse based on your entries from ttw racing form Ttw next day overtart horses can be spotted on ttw track tote board The users manual contains a complete explanation of overlay belting plus much...

Prices And Specifications Subject To Change Without Notice

Includes DBLDOS,1M a TRSDOS compatible double-density disk operating system. CONVERT utility, on DBLDOS minidiskette, converts files and programs from single- to double-density or double- to single-density. Plug-in installation No strapping. No trace cutting. Restore your Expansion Interface disk controller to original configuration by simply removing the DOUBLER and reinstalling the original disk controller chip. I PERCOM DISCOUNT COUPON i worth 20 toward The Purchase of a DOUBLER u Coupon...

Microbeep

Micro Beep is a simple sound device that operates oil your aux plug from your cassette cable Now you can have inexpensive, easy to use. sound for an excellent price' Micro Beep works with Basic using simple commands' OUT25S.4 ON CXJT255.0 - OFF Requires No Extra Software Requires Level II Basic or Disk Basic Will work with 4K 48K' Comes completely assembled' Requires rronsistor radio battery Catalog Micro Beep is being used by TRS 80 Ouners ail oi r the world' Order 2000 Micro Speed Mod Makes...

So

Subscription begins wilh next published issue Back issues, while available are 3 each Canada 20 per year US funds All other foreign subscriptions 28 one year only ond pulse again trips the flip-flop. Round-the-clock Time You can build this real-time clock for under 10 cheap enough so you can toss it out if you purchase an interface . But for a few dollars more, the luxury of round-the-clock time is available. The secret is the OKI clock calender integrated circuit, which is set up for use with...

Parasitic Engineering

CA 94706 Visa MC orders Phone 415 839-2636 10 FOR A 1 TO 4 READ B BS BS CIIR B NEXT 20 DATA 34, 62, 60, 201 30 B VARPTR BS FOR A 0 TO Is B B 1 POKE 16526 A.PEEK B B gt 32767 65536 NEXT 4G CLS A USR A MAIl tt K SMUFFKBOMO D0SPATCM m trademark o Paravt Eng liidtmiik ol the Tandy Corp CP V it a tiademait ot Digital Research THE FOLLOWING CONSTANTS MUST BE INSERTED INTO PROPER PL ACES PL REPLACE WITH PROCRAM LENGTH - IN BYTES SC REPLACE WITH STRING SPACE TO BE CLEARED - DO NOT OM...

Poke Poke Clear

46 117-256 29998, or 2 less than our desired memory size. However, if your machine language routine is relocatable, you can go one better than this. You can reserve enough memory for your routine while the program is running, and then free that memory for other uses when the program is finished. Take a look at Listing 2. The code is compressed with multiple statements on a line, so keep in mind that everything between lines 1 and 2 is part of line 1, and so on. Here is how the program works....

Fxd

Omikron's Mapper NEWDOS 80 8 Drives for the TRS-80 NCWDOS aO is Apparat's latest upgrade to NEWDOS. Features include variable length records, chaining, and drivers specifically configured for Omikrons MAPPER II. 150. MAfKR It adapts the TRS 80 to run both 5 and 8 drives. With NEWDOS 80, storage is increased to 300K per 8 drive. 99 plus 10 per cable connector. MAPPER I adapts the TRS-80 to run the vast library of CP'M software as well as the TRS-80 software. All Lifeboat Software may be ordered...

Vern Street Products

Sapul a Oklahoma 74066 ' 'Sucts Phone 918 224-5347 of Rad,o Shack products Terms COD Welcome, check, money order. Master Charge, or Visa Delivery Stock to 60 days E RAM was designed, and is manufactured by KEYLINE COMPUTER PRODUCTS. INC 13 East 6th Streel. M C 200. Tulsa. Oklahoma 74119 'TRS-80 is a registered trademark of Radio Shack a Tandy Corporation Micro-IVlega P.O. Box 6265 Arlington, Va 22206 TRS-80 COMPATIBl I DISK DRIVTS A i V AT GREAT DISCOUNTS Thest MPI drives are completely...

The Sword Of Zedek

Fight to overthrow Ra, the Master of Evil. In this incredible adventure game you must confront a host of creatures, natural and supernatural. To liberate the Kingdom, alliances must be forged and treasures sought Treachery, deceit and witchcraft must be faced in your struggle as you encounter wolves, dwarves, elves, dragons, bears, owl. ores, giant bats, trolls, etc Each game is unique in this spectacular and complex world of fantasy 24 95 Performance is based on the interaction of actual...

Interface

A handshaking story with a hard copy conclusion. Frank Friesen 23 Gemini Avenue Winnipeg, Manitoba Canada R2G 075 After owning my TRS-80 for a while I became tired of copying programs from the screen by hand. I needed a printer. The H-14 line printer from Heathklt seemed to be the best buy. The kit cost less than half the amount of the Radio Shack line printer and even had lowercase. The kit took only 12 evenings to finish, but while building it I realized that the on board CPU and software...

Memorex

WE WILL NOT BE UNDERSOLD Buy any quantity Call free 800 235-4137 for prices and information. 4200 Wisconsin AveNW POBox 05 Washington DC 20016 Avttlon Hill Game Company has just introduced their first five war and strategy games for the home computer. You play against the program. Each package includes instructions and software for the TRS-80, APPLE II and PET computers having 16k of memory. The battle of Midway is recreated with you in control of the...