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CoCoNut Directory

The following contents were copied from the now-gone

popular TRS-80 User’s web site at:

TRS-80 & Tandy

Color Computer Homepage

“Before JAVA came COCO”

Dedicated to the support, preservation and enjoyment of the TRS-80 / Tandy Color Computers 1,2 and 3 (Coco, 80C),

TRS-80 MC-10, Dragon computers, TDP-100, CP-400, FHL Tomcat TC-9,

other compatibles and the emerging retrocomputing hobby.

  • Nov 24, 99: Note redesign for the Coco Preservation society‘s web site.
  • Nov 24, 99: Falsoft has made available their remaining Rainbow Magazine back issues through an online E-Commerce site. Prices seem high on first glance, but after some reflection they probably do reflect what these items are worth (they are in mint/unread condition after all). Considerable time was also invested in the web site’s production – including cover scans. Hey – the original Cococat costume is forsale!
  • Nov 24, 99: Curtis Boyle has added a Win95 Bootup hoax to his OS-9 page. He’s not giving away exactly what it does, so you’ll have to check it out yourself 🙂
  • Nov 24, 99: Nickolas Marentes has made available an MPEG video of his upcoming release “Gate Crasher”. Keep up the good work Nick! Nick has also released his software collection bundle.
  • Nov 24, 99: Paul Barton’s Cocozilla has a new homepage. Now there is one central location to keep track of this talented Coco hacker’s creations.
  • Nov 9, 99: Stuart Wyss has created a new screen dump for Hewlett Packard printers.
  • Nov 9, 99: Brian Hall is interested in starting a Coco 3 emulation project for Linux machines (YAH!). At the moment he has “no website [and] no code” but he does have plenty of C and Linux experience. He’d like to explore using MAME as a base for the emulator. Anyone interested in helping him out – please send him an email.
  • Nov 9, 99: “SKAUGHT” notes that the Coco can also be spotted in the “Revenge of the Nerds” movie, during the final concert.
  • Nov 9, 99: Paul Barton reports that tests on the 8Mb Upgrade board are proceeding with good success, but he’d like to converse with others about how to get new 6309 test code onto his machine. He doesn’t have EDTASM and finds converting assembly from a crosscompiler on MSDOS to be a pain too.
  • Nov 9, 99: The IDE project has put a new web page online
  • Oct 15, 99: First some bad news… it seems we’ve finally come to the realization that Stephen Disney has “disappeared into thin air” with some of the Coco community’s hard earned money. He’s left quite a mess behind him too. Publication of “The World of 68 Micros” will be permanently discontinued, and the MP3 “learn the 6809” project is of course down the tubes – as well as the bulk purchase of 6309’s from South Africa. Anyone who has information about where this person is – and why he’s ignored repeated attempts to get a hold of him PLEASE contact someone within the Coco Community. I have in the past listed Mr. Disney’s offerings on this page and I apologize if you have sent him money because of this – at the time of the postings no one had any reason to doubt the sincerity of this person. In general, the Coco Community continues to be comprised of the finest people you will find anywhere – people with whom you can deal with confidence. And now on to the more positive things. NEW
  • Oct 15, 99: The Glenside Color Computer Club (GCCC) has announced plans for a 9nth Annual Chicagoland Cocofest!
  • Oct 15, 99: Paul Barton reports his 8MB coco upgrade seems to be working! More testing is being done as I write… also ONLY ONE NoCan2 remains available ($60 usd).
  • Oct 15, 99: Additions to the Color Computer Documentation Page have been posted regularly. New features include some hardware manuals (multi-pak etc) and a new MC-10 Documentation area.
  • Oct 15, 99: Note a new URL for Netrunner’s Homestead.
  • Click here for *** NEWS ARCHIVES ***

  1. 1997 Chicago CocoFest Pictures & Allen Huffman’s Fest Report
  2. For coco related discussion and help on the net, try the usenet group bit.listserv.coco.
  3. RTSI is the major internet FTP site for both RSDOS and OS9 software.
  4. The Tandy/Dragon Emulator Home Page contains information on how you can emulate a Coco on a newer computer.
  5. John Kowalski’s (AKA Sockmaster) Coco page. Chock full of software and hardware hacks and demos. This is one talented individual.
  6. Read Stuart Wyss’ updated CocoFAQ.
  7. Read a comprehensive history of the Color Computer in the CoCo Chronicles.
  8. Finally! A page devoted to the classic Color Computer game – Dungeons of Daggorath
  9. Paul T. Barton’s homepage aka the Cocozilla page shows his many coco upgrade hacks and creations. A must visit site!
  10. Jim’s TRS-80 Color Computer Page and Larry Greenfield’s Color Computer page are favorites of mine.

Polls! Be sure to take part in the online Coco Polls – even if you don’t have a Coco. The results of these polls should be interesting for everyone to look at too!

Where to talk about Coco

  • For coco related discussion and help on the net, try bit.listserv.coco, the usenet version of the Coco mailing list.
  • Having trouble with the coco mailing list? Check out Stuart Wyss’ tutorial.
  • A Nitros-9 mailing list has been set up for Nitros users. To join, send an Email to with “subscribe nitro” in the body.
  • Color Computer discussion often takes place in the comp.sys.tandy newsgroup which covers all Tandy Computers. The group maintains a homepage.
  • alt.comp.dragon is a newsgroup dedicated to the Dragon Computer – a coco Clone from the UK.
  • comp.os.os9 is a newsgroup dedicated to discussion of OS-9.
  • comp.sys.m6809 is a newsgroup dedicated to the discussion of the Motorola 6809 microprocessor which the Coco uses.
  • Delphi runs its OS-9 Late night discussion once a week / Tuesday 9:00pm EST. Here is a sample schedule from 1996. Also, Delphi still maintains a Coco/OS-9 Forum which you can access free of charge from the web. For more information visit The Delphi Homepage.
  • Brazil has a Coco mailing list. Messages are written in Portugese only, and you can join it by sending a message to with “inscreva cp400” in the message body.
  • Find a BBS on the Fidonet network. Ask the sysop to carry the COCO and OS9 echos which are on the fidonet backbone. These echos are visited by many Coco enthusiasts who are not connected to the net.
  • Some other groups to try (if your news server carries them) are cern.os9, de.alt.comp.os.os9.classic , de.comp.os.os9, de.comp.sources.os9, fidonet.os9 , and fidonet.coco

The “Online OS-9 for Smarties” Tutorial

Technical Information & Hacking

Coco Gaming and Entertainment

  • Also see “Sources for Color Computer Software” section on this web page.
  • Adventure Survivors is a club for people interested in playing Adventure type games on the Coco. They offer a newsletter that is mailed to members and assist both members and non-members in solving Coco adventure games. Membership is $7/year ($8/year in Canada & Mexico). If you are stuck on a particular adventure, back issues of their newsletter are available. For $1 I purchased an issue which finally let me solve Mark Data’s Trekboer!
  • High Score Board – here’s the place to show off your high score. Includes a tips and hints section.
  • The Caves of the Unwashed Heathen is a new Freeware Coco 1/2/3 game that has just been released by Paul Schoemaker. This game is of the 3D-D&D (ultima?) genre. If you want to run it on a Coco 1/2 or the emulator, you will have to edit out the Coco 3 commands. Check out Paul’s web page for more information on this game and his other programming projects.
  • An online Guide to Solving Leisure Suit Larry.
  • A high quality Coco3 game called CROID has been released into the public domain (requires 128k and 2 button joystick). Drive your robot around the maze – very entertaining. Don’t forget a copy of UNARC512K so you can decompress the archive.
  • A link from Brazil that has a large number of commercial coco games available for download. Lots of pictures too!
  • The Internet Dragon Software Archive – HUGE collection of commercial games etc. Mostly for Dragon emulator.
  • Software archive by Steve Hartford who used to program Coco games. Copies of Star Trader – a Coco 1/2 classic are available from this site. [UPDATED]
  • Dungeons of Daggorath homepage – one of the classic Color Computer games of all-time is honored with its own webpage where fans can exchange hints and tips. Includes information on running “DoD” on an emulator. Also includes an online version of the original documentation!
  • Cup-of-Coco is a Coco web site that has some DSK images of commercial games available from it.

Community Information and Miscellaneous Links

  • The Coco Preservation Society accepts $5 yearly memberships in exchange for a newsletter etc. For more information visit their web site.
  • Read a recent article about the Coco which appeared in the behemoth Computer Shopper magazine (Sept/98) and was written by no other than computer industry mega-pundit John C. Dvorak!
  • A Coco Swap List service has been set up by Stuart Wyss. This will be of interest to anyone wanting to sell or buy coco related items.
  • A Coco Email Database has been set up by Stuart as well.
  • A Report on the 1997 Pennsylvania Cocofest is online.
  • Stuart Wyss has a Penn Cocofest report and pictures page up.
  • Well it was bound to happen sooner or later – now exists and includes a small Coco section
  • When Allen Huffman is online you can ftp pictures or previous cocofests from his computer. Check out this page to find the URL. Allen also has a new book on the history of Cocofest available.
  • 1997 Chicago CocoFest Pictures & Allen Huffman’s Cocofest Report
  • Ebay is quickly becoming one of the better places on the net to buy and sell Coco related items. If you are having trouble finding Coco stuff try this link here. Note – this link will no longer work if Ebay changes its searching conventions.
  • Are you the author of classic Coco software?
  • Read Wired Magazine’s article David vs. Goliath which is about Microware (the creators of OS-9).
  • Read Byte Magazine’s original 1981 article about What’s Inside the Coco?
  • Windows 95 users can turn their startup screens into a Coco screen with this logo.sys file – very cute
  • Screen saver for Windows 3, 95 & NT users that displays a variety of Coco/Dragon screens.
  • Coco Friends Disk Magazine has a new web site. I just got a sample copy from Rick and I think it’s great. If you subscribe now, you get a free Sundog game.
  • A list of Tandy computer items and part #’s is available on the net.
  • An online picture of the Fujitsu FM-7 home computer from Japan – which ran OS-9 Level I – making it a cousin of the Coco
  • Your Coco can be used to access the WWW (in text mode) and send/receive EMAIL. To do this you will need a VT100 capable terminal program like the Freeware OSTerm 2.0.13 for OS-9 and a shell account through an internet provider. Freenets & Community Networks offer limited shell accounts to the public – usually for free.
  • Read the extremely detailed CoCo FAQ to learn all about the machines which this page is dedicated to.
  • Read the OS-9 FAQ. OS-9 is a real-time, multitasking, Unix-like operating system which runs on Color Computers.
  • Read a comprehensive history of the Color Computer in the CoCo Chronicles.
  • See a list of periodicals which support the Coco. Note this list is no longer up-to-date – use with caution.
  • See a list of BBS’s and online services which support the Coco.

MC-10 Information

  • An online club specifically for MC-10 users is available at the Yahoo clubs site.
  • Star-K Software offers the Humbug monitor and “Commterm” for MC-10
  • The Machine Room offers an MC-10 info page.
  • Roger Perea also has a homepage up with Coco information on it. Also some things of interest to MC-10 fans including using text on a hi-res display.

Sources for Color Computer & Dragon Software

  • Also see the Coco Gaming section.
  • See the companies section (below).
  • The major FTP site for RSDOS is at RTSI.
  • The major FTP site for OS9 is at RTSI.
  • Essential OS-9 Applications from RTSI like graphics editors, thesaurus, spell checkers etc.
  • Essential OS-9 Utilities and Patches, like MSDOS and RSDOS transfer programs and archivers etc.
  • The Nitros9 Homepage includes an OS-9 boot process information page, as well as the new version of the Nitros9 FAQ. Also information on the new Level III upgrade. NITROS-9 is now available via FREE ftp download! This also includes TUNE-UP for stock OS-9 and Level III.
  • A new utility has been released by Bob Devries that allows OS-9 users to read the contents of the Coco emulator .DSK files. The file is available on RTSI ftp site. See his website too.
  • Taylor Graphics has a variety of Coco software available from their webpage including graphics viewers, games and utilities. Be sure to check out the newly released Projector-3 Graphics Interchange System. Also in the works is a new RSDOS terminal called ‘Netmate’ and an OS-9 software based voice synthesizer. They will also install 6309 chips.
  • Many Coco and Dragon emulators are available. Check out the Dragon and Tandy Coco Emulation Homepage for more details. The freeware TRS-80 Color Computer 2 emulator for MSDOS is available from the official Coco 2/3 Emulator Homepage. To use it you will need a copy of the Coco’s ROM (this image is now the disk basic image, but it is a clone).
  • Macintosh Users: A coco emulator is under development.
  • Bill Bernico has declared his previous software releases to be in the public domain. Read this email for details.
  • Gregory S. Wittmeyer (GSW Software) has released his previous software creations into the public domain. Read this email for more information. Note: Greg sent me a copy of some disks with manuals – I’m hoping they will be online during the Xmas 98 break.
  • Harlan Martin has released a program which allows you to view RSDOS disk directories from within Windows 95 and 98. Just double click on the DSK file. Click here for a copy of COCODISK. Thanks Harlan!
  • Dave Edson has released his previous software creations into the public domain. See here for more details.
  • Black Belt Systems has released a freeware FLEX emulator for AmigaDOS and Windows 95. FLEX was a popular operating system in the early days of the Coco. Visit their homepage
  • FLEX user’s group has formed on the net.
  • Who needs DOOM (the game) when Sockmaster has given us GLOOM– a 3D walk through environment that doesn’t even require a 6309!
  • OS-9 Pascal Resource page
  • Sockmaster’s Cocotracker MOD file player is available. Takes advantage of a 6309..
  • Nickolas Marentes’ Color Computer Workshop provides information on his commercial releases and is also the source to some of his fantastic freeware games. Be sure to check out Pacman – a perfect remake of the original. He is also releasing interviews with star Coco programmers. Check out his web page for more information. Retro game for a retro machine – perfect fit! Also check out re-released commercial games.
  • Terry Simons has released his software into public domain. See this email for more information.
  • Contact Stuart Wyss for information about a new PCX graphics viewer he has written for the Coco. It is freeware, and available from both RTSI and his web page. Also available is a BMP file reader, a fractal graphics programs and a space invader type game. Stuart has also developed a word search program and a screen saver. Information on an 80 column patch for EDTASM+ and coco fest pictures / reviews. Windows 95 coco icons and lots more.
  • A site with Dragon software available for download.
  • A small archive of Coco & TRS-80 software at
  • A small OS-9 FTP site. Mostly technical development stuff.
  • Introl Corp – sells an MS-DOS C Cross Compiler for the 6809
  • 6809 software developers’ archive
  • Free Compilers and Interpreters – see Small-C, mc6809, E-Forth

Company Index / Alphabetical

  • See Adventure Survivors in the Coco Gaming section
  • A new address for Alpha Products has been found – they make/made the ABUS interface for the coco… check it out if you are into robotics and other hardware experimentation. Alpha Products Inc. 272 US HWY No.206; udd Lake, N.J. 07828-0000; (973) 584-0141
  • ARK Systems USA Web Page – mostly OS-9 programming tools. Also a program that runs under MS-DOS to move files to OS-9 disks.
  • Black Hawk Enterprises sell MM/1 computers. These were widely regarded as the Coco 4 and are still being manufactured and supported today. Visit the MM/1 Homepage. They utilize Motorola’s 68000 series cpus and run the OSK operating system.
  • Many of Burke & Burke‘s Coco products are available as shareware. This includes Daggorpatch, ZClock, World Class Chess, SCSI-512, EzGen, Pertascii, Wild & MV, XT-ROM, File Recovery System, RSB (RS Basic under OS-9), File System Repack, Powerboost Software, and source code to Coco XT, EZGen & Pertascii.
  • is now online.
  • California Digital has brand new / unopened Dragon 64’s for sale. These were a Coco near-clone from the UK. $35 ea. (310) 217-0500
  • ChildWriter GUI based word processing software for Coco 1/2
  • Cloud-9 Offers a new 512k SIMM upgrade, an address bus buffer to protect your CPU (a must for 6309 users), a SCSI w/parity board (add a CDROM, ZIP or JAZZ drive to your Coco!) 2mb upgrades, IBM AT keyboard adapters for the Coco (very neat – I finally bought one) and a variety of used items.
  • CoNect offers the Fast232 RS-232 cartridge (with 16550 UARTS!) for the Coco, and stocks many Tandy software titles. Contact Rick Ulland for more information. Also available at incredible prices are copies of OS-9 Level 1 and 2. CoNect is offering an OS-9 Level 2 bundle for coco 3 users. The package includes OS-9 L2, Basic09, Multiview GUI, 6 Tandy applications, PD stuff, and the system is patched and set-up for 512k cocos for $44.95.
  • Jim Davis has taken over sales of Sundog Systems’ Games (including Kyumgai, Photon, Quest for Thelda, War Monger etc) and Coco Pro software (including VTERM, a RSDOS VT-100 terminal, OS-9 utilities, Simply Better Coco 3 word processor) from Rick’s Computer Enterprise. Jim will also be publishing CFDM (coco Friends’ Disk Magazine) from now on.
  • Chris Dekker Software – (506) 276-4841 sells BasicBoost (6309 OS-9 Basic), ScreenBoost (OS9 L2 screen drivers) and HSLink (high speed serial link software).
  • Delmar Corporation sells the Sculptor v1.16 development language for Coco OS-9 Level II. Send Email to the company running the Sculptor Web page for more information on how to obtain a copy.
  • Digital Frontier Productions sells Shellmate file management software for OS9 Level 2. Also other MM1 software.
  • Dorsette Educational Systems still has their line of Color Computer software available.
  • Elite Software sells word processing, spreadsheet, database and communications software for the Coco 1,2 and 3. They also have a RS-DOS<->MSDOS Transfer program called Elite*Xfer.
  • Falsoft still has some back issues of The Rainbow magazine available.
  • Farna Systems has recently taken over most of Northern Exposure’s product line. Available are Nitros-9 OS, Os9 Tuneup, Shanghai OS-9, Thexder OS-9 and Rusty (starts DECB programs from OS-9). Farna also sells books on learning OS9, Coco technical reference & history manuals, reference manuals etc. Farna also sells genealogy software, “Inside Disto’s 2Mb ram upgrade” ($10), Pixel Blaster OS-9 graphical tools, Patch OS-9 (which includes all the latest 6809 L2 patches), Digiscan Video Digitizers, mini disk drive controllers, and bare 512k upgrades.
  • Robert Gault Software offers: a 6309 patch to Edtasm, CC3FAX for SW fax receival, a RGB-DOS-RSDOS-OS9 conversion util, smartwatch drivers, and RGBOOST, which speeds up DECB with a 6309.
  • Marty Goodman M.D. the legendary Coco hacker is still tinkering with Color Computers. Contact him for information on upgrading Multi-pak interfaces. Be sure to send him your Multipak’s catalog number. Marty also offers an EPROM burning service for ADOS users & general repair and modification services for the Coco.
  • Roger Hallman (formerly of Coless Computer Design) is also back on the Coco scene with his Coco World web page. Watch for a shareware release of CIII PagesE, the coco’s premiere DTP program and download a freeware Coco 3 <–> Coco 3 transfer program.
  • Hawksoft sells hires joystick interfaces that easily switch between hi-low settings. Chris has also designed a very interesting PC I/O board adapter for the Coco which allows the Coco to use standard 16550 IBM PC serial cards. Also X-10 control software and modules, a Coco game (Domination), MYDOS RSDOS enhancement, a 5′ Coco keyboard cable and MM/1 software.
  • Warren Hrach offers RI BBS To Go set of disks for RIBBS. This OS-9 L2 BBS package is extremely capable and even offers Fidonet compatibility.
  • Justin Time: Justin Wagner offers hardware / software, new/used etc. (630) 620-9370
  • Dennis Bathory- Kitsz who owned the early Coco company Green Mountain Micro still has copies of his book ‘Learning the 6809’ available. Visit his homepage or send him Email.
  • Nickolas Marentes’ Color Computer Workshop provides information on his commercial releases and is also the source to some of his fantastic freeware games. Be sure to check out Pacman – a perfect remake of the original. Check out his web page for more information. Retro game for a retro machine – perfect fit! Some freeware available too.
  • Microware‘s Home Page – the company which wrote OS-9. OS-9 is alive and kicking! Read about its current applications.
  • Monkoware has made available the OS-9 Level 2 version 3 upgrade which includes (among other things) overlapping and resizable windows in the GUI. Contact Brother Jeremy for more information and to inquire about Nitros-9 compatibility. He also has available the commercial version of KB-Com, an excellent OS-9 terminal program.
  • Northern Exposure’s products have been taken over by Farna systems (see above).
  • Planet 9 Systems is re-releasing some classic Coco software and also working on new projects. Available are a OS-9 -> ROM kit, Dynacalc Spreadsheet and EPROM services.
  • Rick’s Computer Enterprise has a plethora of Coco stuff still available. Contact Rick Cooper for more information. Product line currently includes: Federal Hill Accounting Software and Zebra Systems’ Coco Graphics Designer.
  • RTSI.COM (List of OS-9 companies)
  • S-BUG has a variety of gently used Coco hardware and software for sale. Contact Richard Albers.
  • Small Grafx Etc. (360) 692-5374 (Terry Laraway) offers serial to parallel converters, Y & tri cables, 6309’s, 512k kits, PAL chips, 2400 baud modems.
  • R.C. Smith has a large collection of previously owned Coco hardware and software including many hard drive set-ups. (404) 469-6601
  • The Sockmaster John Kowalski’s CoCo page. Extremely impressive Coco shareware including a MOD file player, RS-DOS terminal and demo software. Please support this guy’s efforts!
  • Spectro Systems still sells ADOS and Extended ADOS. These are the most comprehensive RSDOS upgrades available. EPROMable as well. Contact Art Flexser for more details.
  • Star-K Software offers the Star-Dos OS (FLEX-like) for Coco 1&2; Humbug monitor for Coco, Dragon & MC-10; Check N’Tax; Remoterm; Commterm for MC-10 & Coco; Eliza; & Newtalk programs.
  • John Strong runs Strongware – and offers the Coco games Gems and Soviet Bloc
  • Sub Etha Software published many titles for the Coco. It’s not operating at the moment but still maintains a web site.
  • Tandy‘s support homepage includes Radio Shack information. Don’t expect anything Coco specific, but there are support files for Tandy printers and modems. You can still order new Coco software from your local Radio Shack! All you need to do is order from their parts catalog. If they don’t have one handy here is a partial list of part numbers.
  • Tandy also offers a software replacement program from which you can order Color Computer software at considerably cheaper prices. Call 1-800-433-2024 to order; they tell you to go to a Radio Shack store and ask for the RSU book. Go to the Royal Blue Section. Look for a tab marked “Hard To Find Software” and look at pages 3C2-16,17, and 18.
  • Taylor Graphics offers the Projector-3 graphics interchange system. Will also install a 6309 into your coco.
  • The Computer Journal‘s list of companies which support older platforms. Includes some OS-9 & Coco entries.
  • TRS-80 Again, Pete Bumgardner’s used TRS-80 online store.
  • Lee Veal is a regular vender at the Cocofests who has a fair amount of recycled goods. Give him a shout if you are looking for something.
  • Video Game Advantage has Coco hardware and software.
  • Paul W. Zibaila II 439 Market St. Beaver, PA 15009 (412)774-1547 repacks Coco 3’s into PC cases

Other People’s homepages

  • Please note: many people’s homepages have already been listed in the sections above, since they often fit one of these categories.
  • L. Curtis Boyle’s web page is online. Curtis (who used to live down the street from me WAY back) is an extremely talented Coco programmer who is still actively hacking away. He was also the first person who showed me how great my new Coco really was. He also has Nitros-9 beta information available from it.
  • Cup-of-Coco is a new Coco web site that’s getting started. Has some DSK images of commercial games available.
  • Added some more game cheat pokes to the POKES page.
  • Jim’s TRS-80 coco page is an excellent new coco web page. Jim has an extensive library of coco game screen pictures. Jim now publishes the Coco Friends newsletter and is helping sell the Pacman release.
  • Techno’s Coco homepage is up. Includes a Coco 2 specific section, and a coco floppy drive and controller page. He’s got some nice pictures on it too…
  • Bull’s Barn is Ron Bull’s Coco homepage. Ron is the organizer of the PA Coco Fest.
  • Ferrel’s coco page.
  • Stop by Robert Gault’s coco page for some software downloads, information on coco software he has forsale, and copies of his previously published articles (and more!). Also includes PIA register, MMU register, pin out info, keyboard matrix info and a memory map. Also includes hints and tips on solving the “Sands of Egypt” adventure game.
  • Roger Perea also has a homepage up with Coco information on it. Also some things of interest to MC-10 fans.
  • A new coco web page is online thanks to the efforts of Wes Thurner. Includes ROM info, MB info, upgrades, schematics, monitor compatibility information, DAC, card cleaning and connector diagrams etc. Definitely worth checking out.
  • Steve McCoy’s RetroComputing TRS-80’s includes an index of Rainbow magazine articles from 1981 to 1984, pics of commercial software and Dungeons of Daggorath maps.
  • John Collyers’ Cocopage is online & includes a disassembler.
  • William Goosey’s Coco information page includes CM-8 monitor and expansion port pin outs.
  • Larry Greenfield has a new Color Computer page on the net. It includes some software for download.
  • The Sockmaster‘s homepage. Mentioned already above. Also includes 4Mhz Coco upgrade info and RS232 handshaking mod.
  • Walter Zydhek has made a valuable contribution to coco information on the net by constructing a web page with the Tandy Color Computer Unraveled Series of books available on it!
  • Netrunner’s Homestead has emulation information as well as several games online for download.
  • Ronnie Tarrence (aka Sidekick)’s web page includes a coco tamagotchi simulator, coco assembly language tutorials and program downloads.
  • Ross Evans has a Coco webpage online.
  • William Bruce James has a Coco links page online and seems to be interested in organizing a Coco ICQ list.
  • Allen Huffman has posted another entertaining ChicagoFest report on his web site and has included a bunch of great pictures.
  • Pierre Sarrazin has added a small coco section to his homepage.
  • Bob van der Poel’s personal homepage. Includes a Coco to Linux transfer utility.
  • Joel’s OS-9 Resource Page includes an archive of articles that he has written.
  • Gerard Laures’ computer picture collection includes a Coco 2 and Coco 1.
  • Jonathan’s “Old and forgotten Hardware” page reminisces about the Coco. Also listen to the WAV sample of Coco cassette storage.
  • Bill Yakowenko’s Excellent Color Computer stuff page. Includes Disk Basic command list, serial port drivers, semigraphics info and lots more. Comprehensive links too!
  • Mark Schoenberger’s CoCo stuff
  • Cocoman’s web page
  • Jim Vestal’s OS-9 – OS-9, personal FTP, links.
  • Allen Huffman’s Coco Info Page includes detailed information about upcoming Coco events.
  • Alan DeKok’s page – includes a lot of information on the 6809 and its superior clone the Hitachi 6309 – which many have used as a replacement. Allan also has information on NitrOs9, an OS- 9 compatible operating system which requires the 6309 and can more than double the speed of the Coco!
  • Paul Burgin’s Dragon & Tandy Coco Sources.
  • Erik’s Mess
  • Racer-Xcon’s coco page
  • JoeDNBaker’s homepage
  • Perrin’s coco homepage

Color Computer Clubs & Organizations

I AM LOOKING FOR OLD RADIO SHACK CATALOGUES which had Coco stuff in them… especially the Canadian ones that I drooled over way back when. I’d love to put pictures of them on the homepage. I am also looking for the following Coco software & hardware but I’m not willing to pay a lot for them: Window Writer both Cer-Comp and Owlware versions, Checkbook+ OS-9 version, Calendar utilities by MV Systems, any of the Robot Arm type attachments that were sold, any of the CP/M adapter cards that were sold for the Coco 1, WordPak II, Cyrus chess cartridge.

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I’ve been getting quite a bit of mail about the TRS-80 model 1, 3 and 4. Please note that this page has nothing to do with those machines, just the Color Computers. Also note that although the Tandy IBM compatible computers (Tandy 1000,2000,3000 etc) are capable of generating colors – they are not the computers referred to by this web page. If you have general questions about your Coco or are experiencing problems with it the best place to get answers is the Coco mailing list newsgroup. Comments, additions, coco-chatter etc. are always welcome – but I’m not interested in buying anything (might pay postage for rare hardware and original software). Email me at, and visit my homepage too! The pictures were captured on my Pentium’s Diamond Stealth TV tuner card – which allows the Coco to use my 15″ monitor 8-). Yes, Intel Pentium: the ultimate Coco peripheral. This web page was sent to you from Saskatoon, Canada .