| California Digital, Inc.: A company that still sells CP/M. | |
| Commercial CP/M Software Archive: A collection of CP/M software, including source codes and documentations. | |
| Commodore and CP/M: Technical description of Commodore's implementation of CP/M Plus in C128, including a couple of tools. | |
| comp.os.cpm Frequently Asked Questions.: Some notes about Gary Kildall, CP/M and Microsoft from a former DRI programmer. | |
| CP/M - The First PC Operating System: Information about the history of CP/M and Digital Research. Links to various CP/M resources. | |
| CP/M 3 patches for Spectrum and Amstrad: CP/M patches for Spectrum +3 and Amstrad PcW16. | |
| CP/M 3.0 for the C128: Comprehensive description on how to build a CP/M Plus version for the Commodore C128. | |
| CP/M Center: Information about CP/M and links to various CP/M resources. | |
| Hal Bower's Home Page: Fixes and utilities for CP/M and Z-Systems, ZSDOS/ZDDOS, and B/P BIOS. | |
| Joe Wein's DRI page: Some notes about Gary Kildall, CP/M and Microsoft from a former DRI programmer. | |
| John Elliott's CP/M Main Page: A technical resource about internals of CP/M. | |
| John R Pierce's Home Page: Contains pictures of Digital Research people. | |
| OAK Repository - CP/M Archive (mirror): German mirror of the largest public CP/M archive. | |
| Osborne CP/M Library: Archive containing software and documentation for the Osborne-1 and Osborne Executive. | |
| S100-Manuals: An archive of antique software and manuals related to S100 and CP/M hardware and software. | |
| The CP/M-86 Software Repository: Downloads and patches for CP/M-86. Updated regularly. | |
| The Online Software Museum - CP/M: An article about the history of CP/M, including a short user's guide and an on-line access to a real CP/M system. | |
| The Unofficial CP/M Website: CP/M binaries and documentation, including the original source code and manuals. | |
| Z-Node 51: Downloads and information for CP/M, Z-systems and Z80 computers. Contains a collection of articles and manuals, too. | |
| ZCN - CP/M-like operating system for the Amstrad NC100/NC200: A free operating system for the Amstrad NC100 (Notepad) and NC200 (Notebook). It's largely compatible with CP/M 2.2. |
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