TRS-80:The Million- Your Judgement Thoughtfully
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We Take the Mystery Out of Computers.. What is a computer? giving you the time to exercise TRS-80:The Million- your judgement thoughtfully. Dollar Breakthrough Not so many years ago, the pocket calculator we now take What Can a Computer Do? TRS-80 systems are capable of for granted could have passed for performing all of these opera- a powerful computer, worth a Large computers are well known tions, and quite a few more not great deal of money. Today, how- in the business world for their mentioned. Although TRS-80 is a ever, there is much more to the ability to do bookkeeping, bdling, small computer, it offers comput- definition of a computer. payroll, inventory control, and ing power that would have cost fast analysis of data. more than a million dollars just a Computers work not only with few years ago. And now there numbers, but with alphanumeric Because computers work with are two TRS-80 systems! -the data-names, words, stock alphanumeric information, they Model I and the all-new Model 11 numbers. A computer can be can sort a mailing list by name, "strictly business" computer. programmed to repeat the same address or other criteria, spot The chart on page 5 will give you I function over and over. It can log- slow-moving inventory items, a feeling for the relative 1; ically evaluate information given write purchase orders based on capabilities of the two systems. B to it, and act on its findings. It sales trends . or simply catalog Your nearby Radio Shack store, can store large volumes of data your butterfly collection. Com- authorized dealer or Computer for future use or reference. It can puters can become teachers, lab Center can help you select the converse with its operator. assistants-even entertainers TRS-80 system and accessories that play all lnds of fascinating you need for your particular Obviously, a computer is much games, from chess to space war. application. more than just a "number- cruncher." It is literally an exten- sion of the mind. It is to man's mind what the lever is to hsarm -a machine capable of increas- ing his effectiveness. It can free you from repetitive exercises which do not require human judgement. It can provide facts and figures with extreme speed, @ 1979Tandy Corporat~on,Fort Worth, Texas 76109. Retatl prices m this catalog may vary at indlmduaf stores and clealers. The Company cannot be l~able fatypographical or plctonal errors What the Expanding World of TRS-80is About. It's About Business It's About Service It's Over 100,000 Systems and the New Model I1 Before and After Sold and TRS-80's 2-Megabyte System. You Buy. Growing Acceptance as the "Standard" Although thousands of TRS-80 You can order a TRS-80 at over Small Computer Model I systems are used com- 7000 locations worldwide. And mercially some applications re- our 50 new Computer Centers When we introduced TRS-80 quire more memory and hgher are ready to assist you with Model I in 1977, we did not an- speed than Model I offers. after-the-sale training, service ticipate the incredible demand Rather than stretch the expan- and expert advice! for small computers. sion limits of Model I to meet Today, our factories operate these additional requirements, around the clock to meet this Radio Shack designed and built demand, which is still growing. an entirely new computer . TRS-80 Model 11. Radio Shack revolutionized the industry by budding affordable Model I1 offers twice the speed of computers (instead of just talk- Model I with memory storage up ing about them). And we're in to 2 mdlion bytes. Model 11 com- the business to stay! pares favorably with systems like IBM's 51 10 -and costs 33% to 66 % less! a. :4 . -4 r-i Model I1 Systems and Accessories. See Pages 18-23 Blladel I Systems and Accessories. See Pages 6-17 3$ It's the Benefits It's About Value . It's About of Modular Design. Continuing Support. TRS-80 Model I systems start at You can buy the Model I or I1 sys- $499. Last year's price was $599. In addition to the sensational tem that's required for today's The reason for the cut is the effi- Model 11, we've introduced new jobs -and expand later to meet ciency of mass production, and hardware items and many new growing (or changing) needs. we're passing along the savings! software packages for Model I. I Our promise: We'll sell you what TRS-80's traditional economy Radio Shack wants to be your you need, not more, not less, and continues with Model 11, which small computer company and you wi~save money ! provides more power-per-dollar you can be sure of our support than any other small computer! . today and tomorrow! Over 100,000 Owners Know TRS-80's Benefits important side effect -the logi- of the most important to our fam- cal approach to problem solving. ily and to the education of our Small Businesses More TRS-80 systems are used in child that we have ever seen." Save Time and the classroom than any other What's Behind the Cut Costs type of computer! And Radio Success of TRS-80? Shack supports TRS-80 with Small-business owners have teacher guides, course materials Availability TRS-80 Model I is in learned TRS-80 gives them an and service. stock in most Radio Shack stores. effective, yet affordable "head You can see and try one before start" on the competition. Tedi- you buy Model I1 is displayed in ous paperwork like payroll and The Most Popular Radio Shack Computer Centers, inventory can be handled by Personal Computer but you can order from any Radio TRS-80, and this allows a busi- in the World Shack outlet. nessman to spend more time on At home, thousands use TRS-80 It's easy to use. Level I's superb the really productive areas of systems to manage budgets, manual makes learning to pro- his job. catalog valuables, educate and gram fast, simple and fun. And Larger businesses that own (or entertain with fascinating Radio Shack's prerecorded have access to) a full-blown games. Most owners (now well software permits an operator mainframe computer have found over 100,000)regard their TRS-80 with little or no experience to use I TRS-80 is ideal for jobs too small as an investment. A father tells Model I or Model 11 for a variety to be cost effective on the big us his TRS-80 investment "is one of jobs. computer. TRS-80 saves time It's expandable. Even the smallest because it handles small jobs Model I system can be expanded without interrupting the big to our largest Model I business computer's schedule, and there's system. Model 11 expands, just as usually no waiting to use the easily to meet growing or chang- TFB-80 system. ing needs. After the sale. Radio Shack pro- TRS-80 Goes to School vides the answers you need be- Schools everywhere now rely on fore -and after- you buy Our TRS-80 as an aid in teaching Computer Centers offer classes math, language arts, even com- in programming and each has a puter programminq and its very service facility. And we're con- stantly adding software and accessories to increase the versatility of both Model I and Model II. TRS-80System Selection Guide Figures refer to Ra&o Shack software Other * Expected quantities for software may give Merent quantities. software to be offered in the near future TRS-80 Model I and Model I1 Specifications The TRS-80 Model I Microcomputer System Radio Shack's TRS-80 Microcomputer System is fully wired, tested and U.L. Inside the keyboard is listed for electrical safety -you can put it to work immediately! It's ideal for the computer's "brain." finances, education, accounting, lab use -even for home entertainment. And it's the computer with a full line of accessories being delivered now with more A powerful 2-80 microprocessor to come in the future! serves as the central processing unit (CPU).Programs and data Basic TRS-80 systems include a 22" video monitoc Realistic battery/AC cas- are stored in internal "memory sette recorder, power suppl~user's manual and a cassette tape for playing chips." Our lowest-priced TRS-80 , Blackjack and Backgammon. computer contains 4096 bytes , The TRS-80 comes to you ready to be programmed either from prerecorded (4K) of user memory, or RAM (a : cassette tape or from the keyboard. A "program"is simply a set of step-by- byte being roughly equivalent to step instructions telling your TRS-80 what you want it to do. The TRS-80's one typewritten character and programs are written in easy-to-learn, plain-English BASIC programming made up of eight electrical language (BASIC stands for "Beginner's All-purpose Symbolic Instruction signals called "bits").It can be Code" . The Level I user's manual includes a beginner's course in BASIC that '11 expanded to 16K within the I have you "talking" to your computer in no time. keyboard unit and to 48K by i using the Expansion Interface with additional memory options. And now, every new 16K TRS-80 New Lower Prices! includes a calculator-style numeric keypad (available as TRS-80 Model I an option on 4K computers). Systems Now Low As Note: the 2-80 is an 8-bit micro- processor and can address a total of 64K of memory.