Dec 04, 2015 radio shack trs 80 model iii 1980 cpu. The apple ii software library probably overtook the trs. Datawriter software radio shack trs80 model iiii 48k software options. Ldos is an advanced operating system developed for the trs80 model iii or model 4 in the model iii mode by logical systems. And please let us know if theres anything were missing. The coco has a completely different architecture and is out of. Search the trs80 software archive ira goldklangs trs. In mid1980, the broadly compatible trs 80 model iii was released. By 1979, the trs80 had the largest selection of software in the microcomputer market. Radio shack trs80 model iiii videotex signup kit compuserve 262224 software. The model 4p versions of newdos80 have a special modelaiii rom image file that allows them to boot on the model 4p. In 1979 i worked at a translation agency in tokyo, armed with ibm selectric, selfcorrecting typewriters. The trs80 model ii microcomputer system, designed and manufactured by radio shack in fort worth, tx, was not intended to replace or obsolete the model i, it was designed to take up where the model i left off a machine with increased capacity and speed in every respect, targeted directly at the smallbusiness application market. Pressing a key on the keyboard would sometimes generate multiple identical characters on the screen, as if the key had been pressed more than once.
The trs80 models iii and 4 are natively floppydriven meaning a certain amount of floppy shuffling is required to use them. This page is a simplified version of david keils application software page. After the introduction of level ii basic in 1978, many trs80 model i users began noticing a curious behavior. The technical reference manual suggests setting j8j12, j9j and. Search the trs80 software archive ira goldklangs trs80. October radio shack begins shipping the trs 80 model ii to users. I talk about fitting hires graphics, rs232 and a simple speed up, and a hard drive to the model 4 super micro. The original trs80 micro computer system, which was later known as the model i, launched in 1977. Software for the trs80 model iv from the trs80 archives. The model iii, released in 1980, was a fine computer but three years was a long time in computing back in the early 1980s.
We talk about jetset which is a flight simulator for the trs 80 model ii. And best of all, most model i software will run on model iii, so there are already hundreds. Not only is it supremely retrolooking but it also runs most of that trs80 model i software i cut teeth on back in the day. Trs80 model iii was sold in multiple configurations. This corresponded to the rapid increase in sales of the apple ii, but also to radio shack introducing new computers that split trs. The tandy trs 80 model iii was the third member of one of the most famous computer family preceded by model i in 1977 and model ii in 1979. The model 16 added a 6 mhz, 32bit motorola 68000 processor and memory card, keeping the original z80 as an io processor. The successor to the model iii is the trs80 model 4 april 1983. Apr 26, 1983 the new trs 80 model 4 will have a number of improvements over the model iii, including extra memory and the ability to display 80 letters on a line of text, instead of 64. I added the zip files, contents listings and some archives.
Simply bring your model iii into your local radio shack store, dealer. This page is the main search page for trs80 model i, iii, and 4 software. I talk about making 80 track bootable disks for lsdos, ldos, and newdos 80 to boot on the super micro, and i also talk about trs 80 model i iii 44p4d crt tubes. We have 38 radio shack trs80 manuals available for free pdf download. Tandy trs 80 family was one of the first home computers and was launched at the same time as famous computers like the apple ii or the commodore pet. Like the model i, the model iii used a z 80, but running at 2.
Probably the most popular of tandys many personal computers. The model iii could run about 80 % of model i software, but used an incompatible disk format. I talk about making 80track bootable disks for lsdos, ldos, and newdos80 to boot on the super micro, and i also talk about trs80 model iiii44p4d crt tubes. Welcome to the humongous trs 80 archives, a humongous collection of trs 80 related sites, books, magazines and software. It was to tandy what the c64 was to commodore and the apple ii to apple. Trs80 was a brand associated with several desktop microcomputer lines sold by tandy corporation through their radio shack stores. The model iii however fixed all those issues by integrating all the components into a single casesingle power supply configuration, it had a sexy design for its day, and it was alot lighter than all the components it replaced, and was 99 and 44100 percent compatible with model i software, had a huge software base the day it came out, had a.
It has the classic tandy case and keyboard, with dual floppy drives. View and download radio shack trs 80 model iii operation manual online. The trs80 model i was originally known as the trs80 micro computer. It is compatible with model iii software and cpm application software. Until 1982, the trs 80 was the bestselling pc line, outselling the apple ii series by a factor of five according to one analysis. The second drive was cheaper, and could store more. Includes emulation of floppy drives, hard drive, sound including orchestra 8590, high resolution graphics, up to 1mb of expanded memory, speedup boards, realtimeclock, joystick, rs232 communications, and more. By 1979, the trs 80 had the largest selection of software in the microcomputer market. It also includes max80, genie iii, lnw80, system80, and model 4 cpm, although those systems are incidental and are not really part of the archive.
Translations, from japanese into english, varied from from 5 to 200 pages, anything from film scripts to forklift manuals, training videos. Trs80 model iii with an internal lcd video display. The new trs80 model 4 will have a number of improvements over the model iii, including extra memory and the ability to display 80 letters on a line of text, instead of 64. It offers the trs80 user manu features and enhancements that are not included in trsdos. Little wonder this radio shack model is one of the most popular portables of all time. The model iii was largely, but not completely, software and hardware compatible with the model i. Remember that you will need compatible trs80 drivers to use the hard drive just like you would on a real trs80. The trs80 in question is a model iii, the allinone console device with a numerical keypad, crt monitor, and dual 5. Until 1982, the trs 80 was the bestselling pc line, outselling the apple ii series by a factor of 5 according to one analysis.
Introduced in 1980, the model iii included improvements like a better keyboard with builtin lower case, a faster z80 processor at 2. It has two halfheight thinline doublesided 8inch floppy drives, though the model ii upgrade does not replace the floppy drive. The computer also came with the option of integrated disk drives. The trs80 tandy 2000 marked the end of the line for the trs80 branda shift which came just as the industry began transitioning to a msdos based standard pioneered by. Recognising these two evolving markets tandy had machines for both namely the colour computer to grace the family living room and the businessoriented trs80 model iii, a direct descendant of the venerable model 1. The model iii was in turn succeeded by the backwardcompatible model 4 in 1983. Customers and developers complained of bugs in its basic and the trsdos operating system. Tandy corporation introduced the trs 80 model 4 in april 1983 as the successor to the trs 80 model iii. This page is the main search page for trs 80 model i, iii, and 4 software. The model 4 has a faster z80a 4 mhz cpu, larger video display of 80 columns by 24 rows, bigger keyboard, and can be upgraded to 128kb of ram. Please choose your search criteria from the boxes below. Pimping a trs80 model 4 with a frehd hard disk emulator. Radio shack trs80 model iii operation manual pdf download. Otherwise, i had no cheap and convenient means to get existing trs80 software transferred to a trs80 disk format so i.
In mid1980, the broadly compatible trs80 model iii was released. Here is the trs 80 type 4 after installing an i5 3. The model 4 is fully compatible with model iii and cpm application software. Until 1982, the trs80 was the bestselling pc line, outselling the apple ii series by a factor of five according to one analysis. The original trs80 microcomputer essentially lived on through three more models, as the model iii, model 4 and the portable model 4p.
At first, only one key would be affected, but later the problem would spread to more keys. May tandyradio shack announces the trs 80 model ii. View and download radio shack trs80 model iii operation manual online. The model 4p versions of newdos 80 have a special modela iii rom image file that allows them to boot on the model 4p. This is a fullfeatured emulator of a trs80 model iii microcomputer. Trs 80 universe the place to locate all those hardtofind vintage tandy and trs 80 computer items from the 1970s and 80s. Adkult radio shack trs 80 model iii 3 computer system 10x7 retro look metal sign d61. Dec 04, 2015 this early consumer pc gained its name from a combination of the store name with that of its parent company, tandy, resulting in tandyradioshack or trs.
Adkult radio shack trs80 model iii 3 computer system 10x7 retro look metal sign d61. Radio shacks original trs80 family of computers low end mac. The model ii contains a singlesided fullheight shugart 8inch. Trs80 model iii emulator for windows relive the glory of 80s 8bit computing. The trs80 model 16 came out in february 1982 as the followon to the model ii. Radio shack begins as a one store retail and mailorder company catering to ham operators and electronics buffs. It also includes max80, genie iii, lnw80, system80, and model 4 cpm, although. Thetrs80 model iihad been an entirely different and incompatible design. Radio shack trs80 model iii service manual pdf download. Trs80 model 212166000 lsdos scroll protect working after 35 years. Programming and applications hardcover january 1, 1982 by larry joel goldstein author.
The trs80 model iiii44p never came from radio shack with a builtin hard drive, but many companies including radio shack sold hard drive addons. The trs80 micro computer system is a desktop microcomputer launched in. Some online exhibits like visible storage and mastering the game complement physical exhibits you can also. Radio shack trs80 manuals manuals and user guides for radio shack trs80. During 1987 1988 the retail stores removed the model 4ds from. First of all, it adds data transportability you can read ldos diskettes on a trs80 model i, or on a model iii or 4. Not only is it supremely retrolooking but it also runs most of that trs 80 model i software i cut teeth on back in the day.
To play it safe, they built 3,500 one for each radio shack store. It featured a more powerful 14k level ii basic rom, lowercase support, and had a numeric keypad built right in. The trs 80 models iii and 4 are natively floppydriven meaning a certain amount of floppy shuffling is required to use them. Radio shack service manual for the trs80 model 4p and 4p gate array computers. View and download radio shack trs 80 model iii service manual online. Basic multi keyarray sort for model iv cmd microsystems software inc 1983. After the instant succes of the model i, tandy realized it was not much of a. The trs 80 model 100 instanton, with a comfortable keyboard and 20 hours of battery life. The 4p versions will boot on a model iii, 4 or 4p system. Tandy would go on to replace the model i with the broadly compatible model iii in 1980. Then, in our main segment, we talk to trs 80 model 100 enthusiast josh malone. Testing the newly repaired trs80 model iii youtube.
Trs80 model iii tandyradio shack trs80 model iii click here for picture hear john freire talking about his model iii converted to a model iv 12. The trs80 model 100 instanton, with a comfortable keyboard and 20 hours of battery life. Until 1982, the trs80 was the bestselling pc line, outselling the apple ii series by a factor of 5 according to one analysis. Jul 09, 2014 the model iii however fixed all those issues by integrating all the components into a single casesingle power supply configuration, it had a sexy design for its day, and it was alot lighter than all the components it replaced, and was 99 and 44100 percent compatible with model i software, had a huge software base the day it came out, had a. Trs80 model iii software tandy the micro editor 5 14 south western publishing. Theres some discussion about arcnet, cpm plus and floppy disk baking. Radio shack service manual for the trs 80 model 4p and 4p gate array computers. Unfollow radio shack trs 80 to stop getting updates on your ebay feed. After attempting to port zork from the model 4 and discovering a problem with lsdos going all the way back to the 6. It also includes max 80, genie iii, lnw 80, system 80, and model 4 cpm, although those systems are incidental and are not really part of the archive. Software for the trs 80 model iv from the trs 80 archives. Apr 15, 2017 the trs80 tandy 2000 marked the end of the line for the trs80 branda shift which came just as the industry began transitioning to a msdos based standard pioneered by the 1981 ibm pc.
Any free shipping free in store pickup free local pickup. Welcome to the humongous trs80 archives, a humongous collection of trs80related sites, books, magazines and software. Lots of trs80 software can still be used thanks to trs80 emulators. Sharp 80 with cpu internal display turned on about sharp 80. If all i wanted to do was format floppies, or type in the occasional basic program, then i was golden.1400 1417 1500 1276 183 1328 400 422 1201 143 1313 4 91 1430 1160 315 1177 68 1410 282 1021 668 507 1027 1444 933 387 1502 960 1545 1128 161 1399 437 750 227 1059 1253 853 516 171 596 30 776 1424 162 59 946 1392 769