It was introduced at the june 1979 national computer conference in new york city. These cas files can also be used with a real system 80 or trs 80 model 1. Maybe you no longer have a model ii but you held onto your disks or maybe you obtained. It includes schematics, theory of operation, trouble shooting, etc. This is the main technical reference manual for the model i computer the keyboard. The trs 80 model i with an expansion unit and a floppy disk. Trs80 colour computer 2 computer computing history. The program will output audio through the sound port, which you can connect to the 80s external cassette input. Trs 80 revived site by ira goldklangs is an archive of everything related to the tandy radio shack trs 80 microcomputer lines.
This software consisting of a set of patches and a conversion program will enable you to continue to use your trsdos 6. Radio shack trs 80 raspberry pi emulator, with large software collection. Trs80 model ii micro computer, tandy radio shack, z80a, 64k ram, 8 floppy. Over the past 2 decades, rick had nearly singlehandedly kept the model 100 and family laptops going through his amazing dedication, passion and support.
A great deal of pages have been written about this machine, no need for me to add another one. Ive made some major extensions to xtrs, an emulator that runs under unix with the x window system. It is compatible with model iii software and cpm application software. Software for the trs 80 model iv from the trs 80 archives. This post describes the keyboard controller which processes keys through 4 simple but distinct stages. In mid1980, the broadly compatible trs80 model iii was released. View and download radio shack trs80 model ii reference manual online. I added the zip files, contents listings and some archives. The machine had the capacity in hardware to utilize multiple 64k banks of memory but this was never implemented in. Try them in the trs32 trs80 emulator and marvel at what could or could not be achieved in 48k of ram. Software for the trs80 model iv from the trs80 archives. 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.
This disk contains drivers and utilities for using radio shack hard drives with ldos on a real trs 80 model 1 or the emulator. Clear the search box to show the entire planet emu list. Except for simple basic programs, the model ii wasnt compatible with model i software. By 1979, the trs80 had the largest selection of software in the microcomputer market. Will control 1 to 2 drives of up to 1024 cylinders and 8 heads. The following documents were found from various locations on the web. The model 100 not to be confused with the trs 80 model 1, one of our 25 greatest pcs of all time still inspires an awful lot of admiration. The model 100sold, like all trs 80s, at radio shackwas the first popular notebook computer. The trs 80 model ii was a computer system launched by tandy in october 1979, and targeted at the smallbusiness market despite its name, the model ii was not an upgrade of the original model i trs 80, but an entirely different system. The model ii was succeeded by the compatible trs80 model 12, model 16 and model 16b and the tandy 6000. In the previous part, i unbox this 80 s home computer and find i let the smoke out when i turned it on. Tony duell has written utilities for formatting trs80 disks in an intel linux pc with a standard pc disk controller and copying. Sep 26, 2014 trs80 model i 48k level ii system bring up and repair this is the story of bringing up and repairing a trs80 that had not been powered on in 30 years.
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. View and download radio shack trs 80 model ii reference manual online. Consequently, a lot of software was written for this vanilla tapebased configuration. It is an extremely efficient business tool that can speed through routine tasks, store vast amounts of data, provide timely information for decisionmaking, and much moreat costs significantly below the industrys going price for comparable computers. Trs80 model ii archive project pski software development. It would boot to the basic rom by holding down the break key as you reset it. Trs80 model ii is radio shacks fastest and most powerful microcomputer. This archive is concerned exclusively with the preservation of artifacts for the trs 80 model ii so that future enthusiasts can keep these historically important microcomputers operational. The model 4p versions of newdos 80 have a special modelaiii rom image file that allows them to boot on the model 4p. Trs 80 was announced at 399 usd, or 599 with a 12 monitor and a radio shack tape recorder as data cassette storage, while its direct rivals, like commodore pet was announced at 795 usd, and apple ii was announced at 1298 usd. The big list of trs80 software instantly run any program below in a trs80 javascript emulator.
Little wonder this radio shack model is one of the most popular portables of all time. By imaging your disks and documentation, you can help to build the collection of rare artifacts in the model ii archive. May tandyradio shack announces the trs 80 model ii. Definitive list of trs80 model ii operating systems.
Also unlike the model i, the model ii had no cassette interface. Until 1982, the trs80 was the bestselling pc line, outselling the apple ii series by a factor of five according to one analysis. Tony duell has written utilities for formatting trs 80 disks in an intel linux pc with a standard pc disk controller and copying. We have 38 radio shack trs80 manuals available for free pdf download. We have 38 radio shack trs 80 manuals available for free pdf download. The trs 80 maps keyboard switch states into a range of memory addresses which when read, have particular bits set for particular keys.
Book listing basic typein programs for the tandyradio shack trs 80 model 100 portable computer. The model ii had advanced features compared to the model i, such as direct memory access dma. After the introduction of level ii basic in 1978, many trs 80 model i users began noticing a curious behavior. Despite its trs 80 heritage, the trs 80 color computer differed greatly from its predecessor with the implementation of a motorola 6890e, rather than a zilog z80 processor. Indeed, adding disk drives and memory expansion often cost more than the base unit itself. Trs80 model ii basic is an easytouse, expanded version of our level ii interpretive language. The trs 80 model 100 instanton, with a comfortable keyboard and 20 hours of battery life. An introductory operations guide to the trs80 model ii microcomputer.
Tandy corporation introduced the trs80 model 4 in april 1983 as the successor to the trs80 model iii. Radio shack trs80 model ii reference manual pdf download. Learning z80 assembly language on the trs80 jim lawless blog. 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. Toc, appendix a, b, c thanks to kees stravers m16pricelist198301. Tandyradio shack trs80 model ii computer old computers. I recommend using an emulator to readwrite trs 80 diskettes instead. Trs80 in an fpga keyboard controller topten software blog.
Heres a nice full color ad that we placed in several magazines. Virtualt virtual t is a trs 80 model 100102200 emulator that runs on windows, linux, and macintosh. As with the trs 80, when people first purchased their shiny system 80 it was usually as a cassettebased 16 kilobyte ram machine. Database contains 5 tandy trs 80 model ii manuals available for free online viewing or downloading in pdf. 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. The manual has very detailed discussions of the theory of operation of all the sections of the model i, fairly complete trouble shooting guides, and full schematics.
Vintage radio shack trs 80 model 3 iii microcomputer. The trs 80 color computer started out as a joint venture between tandy corporation of fort worth, texas and motorola semiconductor, inc. Details about trs 80 model ii micro computer, tandy radio shack, z80a. Sharp pc1500 and trs80 pc2 pocket computers resource page. Trs80 model ii micro computer, tandy radio shack, z80a. Try them in the trs 80 or system 80 emulators and marvel at what could or could not be achieved in 48k of ram. New listing radio shack trs 80 color computer model 263004a with booklets and. The color computer, with its motorola 6809e processor, was a radical departure from the z80based trs 80. 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. Trs80 cassette software page last updated on may 11, 2001. But it wouldnt boot from disk, either from the supplied trs 80 boot disks, nor my video genie boot disks. Despite its name, the model ii was not an upgrade of the original model i trs 80, but an entirely different system.
Tandy trs80 color computer 2 coco 64k original box vintage. Trs80 model i 48k level ii system bring up and repair a. The trs 80 model ii was the first in the line of radio shack business computers that eventually included the model 16, model 12, and tandy 6000. The big list of trs 80 software instantly run any program below in a trs 80 javascript emulator.
It is capable of running programs written in basic or in lh5801 machine language. The trs 80 pc 2 radio shack is the same machine with a different layout. Feb 01, 20 a look at the final member of the radio shack trs 80 series of computers, the tandy model 4d, sold from 1985 until at least 1990 possibly even later. After the initial overwhelming success of the trs80 model i in 1977, tandyradioshack quickly decided to capitalize on their good fortunes and proceeded. Big 80 is an implementation of a trs 80 model 1 in an fpga.
The big list of trs80 software instantly run any program below in a trs80 javascript. In a previous life i was an operating system programmer for the radio shack trs80 model i and model iii. The model ii contains just a small amount of romthat merely loads the operating software, then is switched out. Trs80 model ii the model ii was delivered as a 4 mhz z80 based microcomputer system. Model 4 library catalog 1 for model iv dsk david sampson 19xx baslbr10. Trs80 model i 48k level ii system bring up and repair. An essential guide for working on trs 80 computers is the trs 80 model i technical reference manual. It is widely available in pdf format, but i have two printed copies. This page is the main search page for trs 80 model i, iii, and 4 software. Right now the utilities work only for standard doubledensity ldos5trsdos6lsdos6 formats, 18 sectorstrack, 256 bytessector, 40 or 80 tracksside, and 1 or 2. Radio shack trs80 color computer 2 keyboard wmanuals, software, box working. More recently, in a fit of nostalgia, ive gotten interested in trs80 model iiii4 emulators. By 1979, the trs 80 had the largest selection of software in the microcomputer market.
If you just want to check out the software and know little about how a trs 80 model 1system 80 works simply do the following. User manuals, guides and specifications for your tandy trs 80 model ii desktop, printer, storage. The trs 80 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. The standard configuration was typically 64k ram, although 32k was an option. I was years old when i first saw a computer, at an event in middle school. Radio shack trs80 microcomputer catalog numbers scratchpad.
This archive is concerned exclusively with the preservation of artifacts for the trs80 model ii so that future enthusiasts can keep these historically important microcomputers operational. I was 17 years old when i received this computer in the fall of 1982. Later tandy introduced the models iii and 4, wonderful machines you could upgrade to if your model i gave up the ghost. But what always intrigued me was the missing link, the trs80 model ii.
The radio shacktandy corporation trs 80 color computer nicknamed coco was released in 1980, with subsequent hardware updates in 1983, and 1986. Blog retro trs 80 model 1616b6000 mc68000 cpu board spotters guide. The goal of virtual t is to provide 100% hardware emulation so any existing programs will run. Trs80 model ii software statistical analysis software lot. The 4p versions will boot on a model iii, 4 or 4p system. Do you have any trs80 model ii 8 inch floppy disks laying around.
Please choose your search criteria from the boxes below. Pdf documentation for the tandy trs80 model ii xs4all. This page is a simplified version of david keils application software page. Dear friends, on april 30, 2011, rick hanson, the proprietor of club100, passed away. Trs80 model ii disk operating system reference manual. Big five produced nine games for radio shacks model trs 80 computers. Component part numbers are shown for digikey us and jaycar electronics new zealandaustralia. Tandy had a great deal of software for the model ii, but there was not much support for the system from anyone other than tandy. It is generally easier to use ordinary digits for the model 1, model 2 and model 3.
Radio shack supports the model ii with a growing line of software and total beforeandafter thesale service. The different disk format and system architecture made it impossible to run model iiii software on the model ii, thus it never. By 1979, the trs80 had the largest available selection of software in the microcomputer market. The following document describes an ide drive interface for the trs 80 model 4 and larry campanells modifications for the lnw 80. Included is the original model 1 version plus the later version that was modified for the model iii4. With knut rolllunds play cas software you can use your pc as a cassette player. Radio shack trs80 micro computer technical reference handbook 2nd. The architecture of the model ii would continue to be developed over the next 6 years in different iterations, including the trs 80 model 16, trs 80 model 12, trs 80 model 16b and finally, the ultimate incarnation of the model ii, as the tandy 6000. The sharp pc1500 is an 8bit pocket computer introduced in 1981 in japan and in 1982 worldwide.
Around the summer of 20 i bought a number of old computers from a retired professor in nj. After a lot of effort from many members of the community, i am proud to present a collection of tandy arcnet software for the trs 80 model ii121616b6000 microcomputers. In this video, i troubleshoot and fix the power supply and use an old dos pc to make some. Looking at the trs 80 disk software page, theres a rather extensive selection of dos options that seem to work with the 4p and also claim high compatibility with the tandy trsdos option considering that i have a 4p with two floppy drives, and id like to run model iii and model 4 native software not cpm, is there a particular dos which is considered superior. Tandy trs80 model ii manuals and user guides, desktop. I offer thanks to those that spent the time scanning these docs as it is a time consuming and thankless job. Until 1982, the trs 80 was the bestselling pc line, outselling the apple ii series by a factor of five according to one analysis. Model videotex software 29 262221 model 2 videotex package 29. The model ii was not an upgrade of the original model i as it was aimed more at the business market, rather than the personal home computing market. Trs80 model ii disk operating system reference manual trsdos 2.
Trs 80 cassette software page last updated on may 11, 2001. In mid1980, the broadly compatible trs 80 model iii was released. October radio shack begins shipping the trs80 model ii to users. Site contains emulators, programs, manuals, books, patches, games, hints, discussions, questions, forums, and tons more. October radio shack begins shipping the trs 80 model ii to users. They are known as the model i, model ii, model iii, model 4, model 4p, model 4d, model 12, model 16 and model 6000. Level i basic was created by steve leininger, the designer of the trs. I typed a basic program and the magic worked immediately, and years later, i ended with two engineering masters cs and ee, and jobs in vlsi and software. This group of machines will be referred to as the trs 80 model ii family. Back in march 2017, i bought a trs 80 model 3 on ebay. The sales estimate of 6,000,000 quoted above comes from wikipedia, and sounds high. Trs 80 model iii 16k level ii machine has a part number of 2621062 while the u. This part of the website contains my entire collection of trs80 model 1system 80 software in 80 track, singlesided,singledensity disk images. It upgraded a model 4 or 4p by replacing the 4 mhz z 80 with a 6 mhz z 80 compatible processor hitachi hd64180 and adding 256k of banked ram.
They were originally released on cassette, but later we produced disk versions as well. Jul 01, 2018 an old model 3 donated to my channel that gets the help it deserves. Now emulates diskbased model iii using phillips v1. The trs80 model ii was a computer system launched by tandy in october 1979, and targeted at the smallbusiness market. This part of the website contains my entire collection of trs 80 model 1system 80 software in 80 track, singlesided,singledensity disk images. Search the trs80 software archive ira goldklangs trs80. Trs80 price list january 1983 trs80 model 16 microcomputer prices. Radio shack began taking orders that month for delivery in october, shipping 1,000 model iis by the end of year.
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