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Welcome to the NitrOS-9 wiki!

Official Guides

These are the official guides for NitrOS-9. Start with the users guide first; it has great introductory material.

• The NitrOS‐9 User Guide
• The NitrOS‐9 System Programmers Guide

Platform-Specific Areas

Tandy Color Computer

The Color Computer (CoCo) platform encompasses three machines: the TRS-80 Color Computer (CoCo 1), Radio Shack Color Computer 2 (CoCo 2), and Tandy Color Computer 3 (CoCo 3). It was one of the earliest systems to gain OS-9 support.

• NitrOS-9 on the Tandy Color Computer

Foenix F256

The Foenix F256 is a modern retro-computing platform that has support for the 6809 microprocessor. OS-9 supports this platform with its own dedicated port.

• NitrOS-9 on the Foenix F256

How To Documents

• Writing your first C Program for NitrOS‐9
• Building DriveWire4 for Swift