DTR: Data Processing Technology Reischke - Many OS-9 tools and utilities; OS9MAX32/64 reads OS-9 disk on PC; OS-9/68k devTOOL, 100 OS-9 utilities with source; disk defragmenter; remote control software; flash MMMMMM manager; backup any OS-9 media on PC: CD-ROM, network. More.
NitrOS-9 - Realtime operating system for Hitachi 6309, runs in native mode, so is only 99% OS-9 compatible, minimum 10-15% faster; can free 16K more system RAM in crowded systems; source available, download.
OS-9 Frequently Asked Questions List
OS-9 World Wide Archive - Comprehensive set of OS-9 resources, including latest version of OS-9 FAQ, companies list, FTP archive; maintained by Allan Batteiger.
RadiSys Corporation - Makes OS-9, full-featured, multitasking realtime OS.
Real-Time Services, Inc.: RTSI - Systems integrator and distributor for Microware Systems Corp.