This program emulates a popular early microcomputer, the trs 80 model 4. Radio shack unveils the trs80 model 12 at the cpm 83. The following document describes an ide drive interface for the trs 80 model 4 and larry campanells modifications for the lnw 80. But it wouldnt boot from disk, either from the supplied trs80 boot disks, nor my video genie boot disks. Learning z80 assembly language on the trs80 jim lawless blog. After the introduction of level ii basic in 1978, many trs 80 model i users began noticing a curious behavior. Otherwise, i had no cheap and convenient means to get existing trs80 software transferred to a trs80 disk format so i can use it on the computer until recently. Introduced in 1983, it was an upgrade from the model 3 in that it ran at a blazing 4 mhz using a zilog z80 processor and had a display of 80 columns by 24 lines. Tandy corporation introduced the trs80 model 4 in april 1983 as the successor to the trs80 model iii. The three models were partly compatible with one another, and incompatible with most everything else.
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. Try them in the trs80 or system 80 emulators and marvel at what could or could not be achieved in 48k of ram. With its single case formfactor, it looks just like a vintage computer should. Instantly run any program below in a trs80 javascript emulator. Welcome to the model iii44d4p system expander m3se project. After the introduction of level ii basic in 1978, many trs80 model i users began noticing a curious behavior. The trs80 model 4 is software compatible with the model ill so that owners of either system can take advantage of the large number of programs available. Because of a huge readytorun software library is currently available, model 4 can be used for forecasting, word processing, data base management, computer assisted instruction, program development and for thousands of other applications. The intent is to make it the final of a series of prototypes trs80hdd and trs80gs and a memory expansion module. That is, graphics are always 640x240, text and graphics cannot be overlayed, and there are no scrolling registers. Index of cpmarchivestrs80softwaremodel 4m classiccmp.
The radio shack trs80 model 4 microcomputer is an enhanced version of radio shacks popular trs80 model ill microcomputer. Aug 29, 2012 near the end of the trs 80 product run came the tandy trs 80 model 4 from tandy radio shack. Search the trs80 software archive ira goldklangs 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. Deskmate is a gui shell, program environment, and organizational application suite bundled by tandy with their computers. Learning z80 assembly language on the trs80 jim lawless. This is because there were so many models of the trs80, each with its own character set, in one of two video modes, or four in the case of the model 4. By 1979, the trs80 had the largest selection of software in the microcomputer market. Frequently asked questions here are a few frequently asked questions on the radio shack trs 80 model i, model iii, and model 4. Radio shacks model iii hires card is the same as the model 4 card except that the undocumented features of the model 4 card are not present. The another mans treasure series consists of 22 fonts the largest of any series in my retro computing fonts collection. Near the end of the trs80 product run came the tandy trs80 model 4 from tandy radio shack. These are z80 based machines that were first introduced in 1977.
Find great deals on ebay for trs 80 model 1 when you shop the largest online selection at. Looking at the inside i could see that the top of the computer is connected to the bottom with two connectors, one for the main power to the crt and the other for the card to control what gets displayed on the display. Software for the trs80 model iv from the trs80 archives. Model 4, 4 gatearray, 4p, 4d 19831989 to many enthusiasts the trs 80 model 4 was the ultimate development in tandys platform of z80based home and smallbusiness microcomputer. In this video, i troubleshoot and fix the power supply and use an old dos pc to make some. Inside of the trs 80 model 4 with some good luck i got the top off, turned it sideways and set it back down. The following documents were found from various locations on the web.
Mar 18, 2018 back in march 2017, i bought a trs 80 model 3 on ebay. This is repo is for the trs80 modular expansion system mxs. A list of software for the trs 80 computer series appears below. This page is the main search page for trs 80 model i, iii, and 4 software. However, ever since acquisition the machine has sat in its box softwareless and lonely. Trs80 model ii archive project pski software development.
Name last modified size description parent directory. These are z 80 based machines that were first introduced in 1977. 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. Stocking up a trs80 model 4 with software classic computers nz. 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. Trs 80 cassette software page last updated on may 11, 2001.
Model 4, 4 gatearray, 4p, 4d 19831989 to many enthusiasts the trs80 model 4 was the ultimate development in tandys platform of z80based home and smallbusiness microcomputer. The model iii had been only partially compatible with model i software and lack of compatibility was viewed as a costly misstep by radio shack. Model 1 version plus the later version that was modified for the model iii 4. The model i went on to become the bestselling microcomputer for several years and 1979, it had the largest available selection of software in the microcomputer market. There is a scan of the manual for this card on wade finchers trs 80 page. Ive been a programmer since i was 11 years old, starting out with a trs80 coco 3 in 1986. Inside of the trs80 model 4 with some good luck i got the top off, turned it sideways and set it back down. I added the zip files, contents listings and some archives. I previously designed a small adapter board to allow a regular 2764 eprom to be plugged into a trs 80 model 4 gate array version only in place of rom chip u4, in order to use the new autobooting feature of the frehd hard disk emulator. Frequently asked questions here are a few frequently asked questions on the radio shack trs80 model i, model iii, and model 4.
The first two fully graphical versions were renamed personal deskmate i and ii. The model 4 was officially launched for the press on april 27 at an event sponsored by the boston computer society. It is compatible with model iii software and cpm application software. After some research i decided to use david keils trs80 model iiiiv emulator. Version 2 of trs80 model 4 rom adapter marks tech journal. The mxs consists of four modules set up as a stackable set.
Tandy releases the trs 80 model 2000, which uses the intel 80186 microprocessor. In the previous part, i unbox this 80s home computer and find i let the smoke out when i turned it on. More than,000 software packages for the coco, model 100, and. Welcome to the humongous trs 80 archives, a humongous collection of trs 80 related sites, books, magazines and software.
For power, versatility and convenience, youll find model 4 is a true price breakthrough. It also includes max80, genie iii, lnw80, system80, and model 4 cpm, although. Model 4 public domain goodies for model iv dsk trstimes magazine 19xx. If you just want to check out the software and know little about how a trs80 model 1system 80 works simply do the following. Find great deals on ebay for trs80 model 1 when you shop the largest online selection at. But it wouldnt boot from disk, either from the supplied trs 80 boot disks, nor my video genie boot disks. And please let us know if theres anything were missing. Dec 04, 2016 ive been a programmer since i was 11 years old, starting out with a trs80 coco 3 in 1986. The standard configuration was typically 64k ram, although 32k was an option. They are known as the model i, model ii, model iii, model 4, model 4p, model 4d, model 12, model 16 and model 6000. The big list of trs 80 software instantly run any program below in a trs 80 javascript emulator. Welcome to the humongous trs80 archives, a humongous collection of trs80related sites, books, magazines and software. Tandy corporation introduced the trs 80 model 4 in april 1983 as the successor to the trs 80 model iii. By imaging your disks and documentation, you can help to build the collection of rare artifacts in the model ii archive.
Search the trs80 software archive ira goldklangs trs80. The model ii had advanced features compared to the model i, such as direct memory access dma. The following document describes an ide drive interface for the trs80 model 4 and larry campanells modifications for the lnw80. This program allowed real disks including many autoboot protected disks to be made from disk images. The model 4 has a faster z80a 4mhz cpu, larger video display of 80 columns by 24 rows, bigger keyboard, and can be upgraded to 128kb of ram.
This group of machines will be referred to as the trs80 model ii family. The trs 80 model 4, introduced on april 26, 1983, was the continuation of the trs 80 computer line that had begun with the model i in 1977. It is an extremely fast emulation, written and optimized from the ground up in 80386 assembly language. This program emulates a popular early microcomputer, the trs80 model 4. This is because there were so many models of the trs 80, each with its own character set, in one of two video modes, or four in the case of the model 4. I previously designed a small adapter board to allow a regular 2764 eprom to be plugged into a trs80 model 4 gate array version only in place of rom chip u4, in order to use the new autobooting feature of the frehd hard disk emulator. 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. It would boot to the basic rom by holding down the break key as you reset it. Includes emulation of model 3 mode, floppy drives, hard drive, sound, high resolution graphics, up to 128k of memory, realtimeclock, rs232 communications, and more.
Jan 27, 2018 in the previous part, i unbox this 80 s home computer and find i let the smoke out when i turned it on. Welcome to the humongous trs80 archives, a humongous collection of trs80 related sites, books, magazines and software. Compare the features of the model 4 personal desktop computer to any other computer in its class. The m3se model iii system expander is an addon device for the vintage radio shack trs80 model iii, model 4, model 4d, and model 4p microcomputers. Tandy releases the trs80 model 2000, which uses the intel 80186 microprocessor. Welcome to the humongous trs80 archives, a humongous. I was years old when i first saw a computer, at an event in middle school. Software for the trs 80 model iv from the trs 80 archives. The trs 80 model 100 instanton, with a comfortable keyboard and 20 hours of battery life. Please choose your search criteria from the boxes below. Like you, i learned basic from one of those old radio shack books that came with my computer. 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.
Older pc hardware with a compatible floppy disk controller is required to use the file transfer utilities. Model 4 library catalog 1 for model iv dsk david sampson 19xx baslbr10. This page is the main search page for trs80 model i, iii, and 4 software. There is a scan of the manual for this card on wade finchers trs80 page. It was simply a case of finding the time to load it with programs. Looking at the inside i could see that the top of the computer is connected to the bottom with two connectors, one for the main power to the crt and the other for the card to. Component part numbers are shown for digikey us and jaycar electronics new zealandaustralia. Trs80 model 1iii4 4p game software page last updated on april 8, 2005.
In mid1980, the broadly compatible trs80 model iii was released. Little wonder this radio shack model is one of the most popular portables of all time. Still forecasting 3000 sales a year, the company sold over 0 trs80 model is in its first one and a half months of sales, and over 200000 during the products lifetime. Try them in the trs 80 or system 80 emulators and marvel at what could or could not be achieved in 48k of ram. A look at the final member of the radio shack trs80 series of computers, the tandy model 4d, sold from 1985 until at least 1990 possibly even later.
The trs80 model 4 expands easily to meet your growing computing needs, too. The model ii was delivered as a 4 mhz z80 based microcomputer system. Model 4 can run all model iii trsdos and ldos programs in model iii mode. If all i wanted to do was format floppies, or type in the occasional basic program, then i was golden. Back in march 2017, i bought a trs80 model 3 on ebay. The big list of trs80 software instantly run any program below in a trs80 javascript.
Trs80 cassette software page last updated on may 11, 2001. Trs 80 model 4 fixing the power supply and writing. 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. Now emulates diskbased model iii using phillips v1. This page is a simplified version of david keils application software page.