There are many internal modifications that you can make to the Color Computer.

The list below does not include external additions possible through the cartridge connector or external ports.

Case:

• There are currently no recreation CoCo cases I am aware of … yet but I think there is a recreation project underway

Power Supply:

• Replace the SALT with a Pepper board by Pedro Pena aka Rocky Hill
• Bypass the original transformer
• Add a Power LED

Motherboard:

• Pedro Pena aka Rocky Hill has recreated the CoCo 2 and CoCo 3 boards

Microprocessor:

• Add a microprocessor socket (I know at least one person with a zero-insertion force socket)
• Upgrade from a Motorola 6809 to a Hitachi 6309
• Install a Dual6x09 board from go4retro
• CoCo 3: Add a Pro-Tector+ or Guardian “DAT” board to access more than 512KB on supporting RAM boards
• Turbo LED

Internal RAM:

• CoCo 1/2: upgrade from 4, 16, or 32KB to the full 64KB
• CoCo 3: upgrade from 128KB to 512KB with a Cloud 9 Triad 512 or MDO Boomerang 512
• CoCo 3: upgrade from 128KB or 512KB to 2048KB with a Cloud 9 Triad 512-2048K, MDO Boomerang 512, or MDO Boomerang 2M
• CoCo 3: upgrade from 128, 512, ort 2048KB to 8192KB with Zippster's 8MB board

Internal ROM:

• CoCo 1/2: Color BASIC and Extended Color BASIC are tied to SAM version.
• CoCo 3: Sloopy Malibu's ROM switcher - internal HDB DOS

SAM:

• CoCo 1/2: SAM accelerator to allow correct full high-speed poke operation.

Video:

• CoCo 1/2: Replace RF out with a composite video out
• CoCo 1/2: CoCoVGA
• CoCo 3: 1986 GIME “Sparklefix”
• CoCo 3: Replace the 1986 GIME with a 1987 GIME to remove “sparkles”
• CoCo 3: Replace the 1986 or 1987 GIME with a GIME-X
• CoCo 3: RGB out to SCART to HDMI using CoComan's Switch-a-roo cable
• CoCo 3: RGB to Digital Video using a Raspberry Pi and Analog RGB to digital video board

PIA:

• Add a PIA socket
• Sloopy Malibu's DriveWirelessly direct serial to WiFi adapter
• PS/2 to Keyboard adapter

Keyboard:

• Zippster's CoCoMech
• ComputerConect's Keyboard Mylar Replacement

In alphabetical order:
AC's 8-Bit Zone (through the CoCo Discord)
Cloud 9 Tech
CoCoMan.biz
ComputerConect
MDO Consulting
Pedro Pena (through the CoCo Discord)
Retro Innovations
RetroRewind.ca
Sloopy Malibu (through the CoCo Discord)
The Zippster Zone

Contact me on the Discord and set me straight!

Return to top or Tandy Color Computer