This document is the OS-9 Operating System User's Guide, which introduces the basic operations and features of the OS-9 operating system. The document includes topics such as system startup, backup of system disk, interactive functions, and file system.
This manual introduces the OS-9 operating system for the Dragon Computer, covering everything from initial startup to advanced shell commands. It explains required hardware, how to boot the system, and basic interactive functions such as using the keyboard, disk operations, and printing.
Later chapters detail the OS-9 file system, memory management, multiprogramming, and optional hardware interfaces like serial ports and the 51‑column video display. Appendices give command reference tables and driver usage examples.
| Minimum Memory | 64K |
|---|---|
| Required Disk Drive | Dragon Disk Drive with Controller Cartridge |
| System Disk | OS-9 Dragon System Disk |
| Optional Parallel Printer Support | Supported |
| Optional Game Joysticks | Supported |
Turn on the Dragon Computer and disk drive, insert the OS-9 system disk, then type BOOT.
Use the XMODE command with the BAUD parameter, e.g., XMODE /P1 BAUD=3.