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2024-03-02: The wiki ran out of disk space, so things were not working. This has been resolved by adding another 5GB of quota ;-) Thanks to Tim Lindner for reporting the issues. 2020-05-17: If a page gives you an error about some revision not being found, just EDIT the page and the old page should appear in the editor. If it does, just SAVE that and the page should be restored. OS-9 Al (talk) 12:22, 17 May 2020 (CDT)

Hardware: Difference between revisions

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*MC6809E [[Microprocessor Unit]] (MPU)
*MC6809E [[Microprocessor Unit]] (MPU)
*MC6883/SN74LS783/SN74LS785 [[Synchronous Address Multiplexor]] (SAM)
*MC6883/SN74LS783/SN74LS785 [[Synchronous Address Multiplexer]] (SAM)
*MC6847 [[Video Display Generator]] (VDG)
*MC6847 [[Video Display Generator]] (VDG)
*Two [[Peripheral Interface Adapters]] (PIA), either MC6821 or MC6822 chips
*Two [[Peripheral Interface Adapters]] (PIA), either MC6821 or MC6822 chips
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==Audio Output Devices==
==Audio Output Devices==
*[[Orchestra-90 CC (26-3143)]] / [[CoCoDAC-16]] - Stereo Music Synthesizer DAC
*[[Orchestra-90 CC (26-3143)]] - Software Affair Stereo Music Synthesizer DAC recreated by Zippster as the [[CoCoDAC-16]]
*[[Speech/Sound Cartridge (26-3144A)]] - Music and Speech Synthesizer AY3-8913 Programmable Sound Generator and an SPO256-AL2 Speech Processor
*[[Speech/Sound Cartridge (26-3144A)]] - General Instruments Music and Speech Synthesizer AY3-8913 Programmable Sound Generator (PSG) and an SPO256-AL2 Narrator Speech Processor
*[[Game Master Cart]] - Flash ROM and SN76489AN Digital Complex Sound Generator
*[[Symphony-12]] - Speech Systems' 4 x AY-3-8912 PSG for 12 channel sound, recreated as the [[Philharmonic-12]]
*[[CoCo PSG]] - YM-2149F OPL3 Programmable Sound Generator
*[[Game Master Cart]] - RetroTinker's Flash ROM and SN76489AN Digital Complex Sound Generator (DCSG)
*[[MEGA mini MPI]] - YM-262F OPL3 FM Synthesizer
*[[CoCo PSG]] - Zippster's YM-2149 Software-controlled Sound Generator (SSG)
*[[The Voice]] - Speech Systems' Speech Synthesizer SP01
*[[MEGA mini MPI]] - Zippster's YM-262F OPL3 FM Synthesizer
*[[Super Voice]] - Speech Systems' Speech Synthesizer device that could sing.
*[[The Voice]] - Speech Systems' Speech Synthesizer with the Votrax SC-01
*[[Real Talker]] - Voice Synthesizer by Colorware
*[[Super Voice]] - Speech Systems' Speech Synthesizer device that could sing with a Votrax SC-02 / SSI 263A
*[[Real Talker]] - Colorware Voice Synthesizer with the Votrax SC-01


==Bus Expander==
==Bus Expander==
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==Input Devices==
==Input Devices==
See also
[[Joysticks]]


=== Tandy / Radio Shack ===
=== Tandy / Radio Shack ===
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*[[Pistol Grip Joystick]]
*[[Pistol Grip Joystick]]
*[[X-Pad]]
*[[X-Pad]]
*Archer Cat. No. 270-9207.  With both a Tandy 6-pin DIN and an IBM PC 15-pin connector, plus a "Tandy/IBM" switch on underside.


=== Third party ===
=== Third party ===
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** 26-3512 [[CM-8]] Specifically made for the CoCo 3. Affordable but no composite input, thus many CoCo 1/2 programs would show in black-and-white.
** 26-3512 [[CM-8]] Specifically made for the CoCo 3. Affordable but no composite input, thus many CoCo 1/2 programs would show in black-and-white.
** 25-8056 [[RGB-11]] [https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/RGB-11%20Color%20Monitor.pdf Listed in the Color Computer Archive]. Perhaps only for composite input use rather than RGB.
** 25-8056 [[RGB-11]] [https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/RGB-11%20Color%20Monitor.pdf Listed in the Color Computer Archive]. Perhaps only for composite input use rather than RGB.
** 25-1020 [[VM-4]] Mentioned by [[Marty Goodman]] as being [https://archive.org/details/rainbowmagazine-1987-08/page/n71/mode/2up "perfectly compatible" with the CoCo 3] - but being monochrome was best for text use. Perhaps any monochrome composite monitor would work.
** 26-3211 [[VM-2]]  Monochrome (green-screen) composite. Had "Tandy TRS-80" branding; part of the brief attempt to hold on to "TRS-80" while still moving to "Tandy" instead of "Radio Shack". Introduced in RSC-14 in 1985; intended for the Tandy 1000 and the Model 100's Disk/Video Interface rather than the CoCo, but when the CoCo 3 complete with composite port came along two years later, it could be an inexpensive option for those intending their CoCos for productivity, telecom, text adventures, and monochrome graphical games like Daggorath and Nebula, and wanted the higher resolution than a TV could provide.
** 25-1020 [[VM-4]] Successor of the VM-2. Mentioned by [[Marty Goodman]] as being [https://archive.org/details/rainbowmagazine-1987-08/page/n71/mode/2up "perfectly compatible" with the CoCo 3] - but, again, being monochrome, was not ideal for most games or graphics. Perhaps any monochrome composite monitor would work.
 
* Magnavox
* Magnavox
**[[8CM505]]
**[[8CM505]]
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*[[FHL Eliminator]]
*[[FHL Eliminator]]
*[[Disto MEB]]
*[[Disto MEB]]
==Printers==
*[[CoCo Printers]]


==RS232 Devices==
==RS232 Devices==
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*[[CoCo 1 Monochrome Video]]
*[[CoCo 1 Monochrome Video]]
*[[CoCo 1 composite video]]
*[[CoCo 1 composite video]]
*[https://imgur.com/a/XYjvAl8 Coco 1 S-Video Circuit, Simplified] (requires disabling RF) Convert to Composite by adding a 470pf capacitor between the yellow and blue lines and replace the S-Video connector with an RCA connector with center connector on the yellow side of the new capacitor.
*[https://imgur.com/a/Pu7vdHB CoCo 1 and 2 S-Video and Composite Out Circuit]
*[https://imgur.com/a/Pu7vdHB CoCo 1 and 2 S-Video and Composite Out Circuit]
*[https://imgur.com/a/XYjvAl8 Coco 1 and 2 S-Video and Composite Out Cirtcuit, Simplified] (requires disabling RF)
*[https://drive.google.com/drive/folders/1iawKo8rM3PNL5g4nWRu-KFlnn0n_WJ4P CoCo 2 S-Video and Composite Out Circuit]
*[https://drive.google.com/drive/folders/1iawKo8rM3PNL5g4nWRu-KFlnn0n_WJ4P CoCo 2 S-Video and Composite Out Circuit]
*[https://imgur.com/TIrk3AE CoCo 1 or 2 YPbPr/YUV Component Out Circuit]
*[https://imgur.com/TIrk3AE CoCo 1 or 2 YPbPr/YUV Component Out Circuit]
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=== Current Solutions to Purchase ===
=== Current Solutions to Purchase ===
*[[Video without RF Box]] Use existing RF out on your CoCo 1, 2, or 3 into your TV tuner.
*[[Video without RF Box]] Use existing RF out on your CoCo 1, 2, or 3 into your TV tuner.
*[https://github.com/hoglet67/RGBtoHDMI RGBtoHDMI] Requires Pi Zero, RGBtoHDMI hat board, and Analog board. Make sure to load the YUV not RGB firmware. Mostly useful for CoCo 1 or 2, but can also be used for a PAL CoCo3 to obtain artifact colors.
*[https://github.com/hoglet67/RGBtoHDMI RGBtoHDMI] Requires Pi Zero, RGBtoHDMI hat board, and Analog board. Mostly used with CoCo 1s and 2s, but can also be used for PAL CoCo3s to simulate NTSC artifact colors.
 
==== CoCo 1 or 2 Only ====
==== CoCo 1 or 2 Only ====
Note that these CoCo 1 and 2 solutions require installation.
Note that these CoCo 1 and 2 solutions require installation.

Latest revision as of 22:33, 28 February 2024

WELCOME
Looking for CoCo help? If you are trying to do something with your old Color Computer, read this quick reference. Want to contribute to this wiki? Be sure to read this first. This CoCo wiki project was started on October 29, 2004. --OS-9 Al

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This page was last updated on 02/28/2024. Total Pages: 729. Total Files: 993.

Home / Hardware - Hardware

Hardware design and integrated circuits

Internally the CoCo 1 and CoCo 2 models are functionally identical. The core of the system is virtually identical to the reference design included in the Motorola MC6883 data sheet and consists of five LSI chips:

Audio Digitizers

Audio Output Devices

  • Orchestra-90 CC (26-3143) - Software Affair Stereo Music Synthesizer DAC recreated by Zippster as the CoCoDAC-16
  • Speech/Sound Cartridge (26-3144A) - General Instruments Music and Speech Synthesizer AY3-8913 Programmable Sound Generator (PSG) and an SPO256-AL2 Narrator Speech Processor
  • Symphony-12 - Speech Systems' 4 x AY-3-8912 PSG for 12 channel sound, recreated as the Philharmonic-12
  • Game Master Cart - RetroTinker's Flash ROM and SN76489AN Digital Complex Sound Generator (DCSG)
  • CoCo PSG - Zippster's YM-2149 Software-controlled Sound Generator (SSG)
  • MEGA mini MPI - Zippster's YM-262F OPL3 FM Synthesizer
  • The Voice - Speech Systems' Speech Synthesizer with the Votrax SC-01
  • Super Voice - Speech Systems' Speech Synthesizer device that could sing with a Votrax SC-02 / SSI 263A
  • Real Talker - Colorware Voice Synthesizer with the Votrax SC-01

Bus Expander

Computers & Clones

Tandy/Radio Shack Tape Drive Systems

Other Tape Drive Systems

Floppy Disk Controllers

Tandy/Radio Shack floppy disk controllers

Third party floppy disk controllers

Hacking floppy disk

Alternate floppy disk controller ROMs

Hard Drive Controllers

Input Devices

See also Joysticks

Tandy / Radio Shack

Third party

Accessories

Memory Upgrades

MIDI Interfaces

Monitors and displays

Arithmetic Processor Units

Multi Devices

These are items that serve more than one purpose, such as Cloud-9's SuperBoard.

Printers

RS232 Devices

Video Digitizers

Video Out

Historical Solutions

Build it yourself

Current Solutions to Purchase

  • Video without RF Box Use existing RF out on your CoCo 1, 2, or 3 into your TV tuner.
  • RGBtoHDMI Requires Pi Zero, RGBtoHDMI hat board, and Analog board. Mostly used with CoCo 1s and 2s, but can also be used for PAL CoCo3s to simulate NTSC artifact colors.

CoCo 1 or 2 Only

Note that these CoCo 1 and 2 solutions require installation.

CoCo 3 Only

Light Controller

Mods & Hacking

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