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December 7, 2025
  • CoCo 3 GIME Chip Reference
  • The NitrOS-9 Boot Process Explained
  • Co Co Co! Merry Christmas!
  • Tandy CoCo Floppy Disk Controller Schematic

Color Computer Gadgets and Projects

TRS-80 Tandy Color Computer Projects, Clones, And More

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  • How to Build a MiSTer CoCo

    6 years ago6 years ago
  • How to Build a Matchbox CoCo

    6 years ago11 months ago
  • RealCoCo Quick Reference

    6 years ago5 years ago
  • NanoMate Board for the DE0-Nano

    6 years ago8 months ago
  • How to get VGA for the CoCo 3

    6 years ago6 years ago
  • Tandy Joysticks for the DE0-Nano

    6 years ago6 years ago
  • How To Build A MiST CoCo

    6 years ago6 years ago
  • Nickolas Marentes

    10 years ago6 years ago
  • CoCo Studio

    1 year ago1 year ago
  • Matchbox CoCo Clone Programmers Reference

    9 years ago1 year ago
  • Luis (Felipe) Antoniosi

    10 years ago6 years ago
  • Ed Snider

    10 years ago6 years ago
  • General News

Mystery 256 Color Mode?

Roger Taylor10 years ago4 years ago031 mins

There have been rumours of a secret 256 color mode hidden within the GIME chip architecture of the Tandy Color Computer 3. This page reveals all the information that I have collected with the hope that one day the truth will be revealed. Introducing the GIME chip The GIME chip within the Color Computer 3…

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  • CoCo Developers

John Kowalski (Sock Master)

Roger Taylor10 years ago6 years ago01 mins

John Kowalski is a well-known expert with the TRS-80/Tandy Color Computer with some of the most impressive graphics demos to ever be created in this community. He’s taken people up on many challenges before and I don’t know of any he didn’t beat. John has also been involved with many other computer and game-related projects….

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  • CoCo Tutorials

How to get VGA for the CoCo 3

Roger Taylor6 years ago6 years ago026 mins

An illustrated review of Luis Antoniosi’s RGB2VGA converter This is a personal review of the RGB2VGA video converter designed by Luis Antoniosi. First, let me say that it is high time that the CoCo community get some real quality video and experience the CoCo in a new way. Numerous people have attempted to make various…

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  • Development Software

Phoenix IDE

Roger Taylor10 years ago5 years ago013 mins

Copyright © 2011-2021 by RT-Software – All Rights Reserved Please note that this IDE is the 3rd in a chain of IDEs I’ve written (1st was Portal-9, 2nd was Rainbow, and 3rd is Phoenix).  Phoenix is the nicest of my IDEs and is quite capable once you get the hang of it.  To see the…

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What’cha Looking For?

  • CoCo Clones (8)
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  • CoCo Tutorials (8)
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  • MiST CoCo (4)
  • Mr CoCo (2)

Recent Posts

  • Ed Snider
  • Building custom ROM images with the CCASM assembler and Phoenix IDE
  • MiST CoCo 3 Clone In Development
  • Mystery 256 Color Mode?
  • CoCo 3 GIME Chip Reference
  • Luis (Felipe) Antoniosi
  • Co Co Co! Merry Christmas!
  • Tandy Joysticks for the DE0-Nano
  • The NitrOS-9 Boot Process Explained
  • Tandy CoCo Floppy Disk Controller Schematic
  • Donkey Kong Remixed
  • John W. Linville
  • UNIX for the CoCo?
  • Projector-3’s Framework
  • How to get VGA for the CoCo 3
  • imgtool.exe
  • How Small Can A CoCo Get?
  • John Kowalski (Sock Master)
  • How to Build a Matchbox CoCo
  • CoCoTape – CLOAD programs stored on your PC

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