A company that still sells CP/M.

A collection of CP/M software, including source codes and documentations.

Technical description of Commodore's implementation of CP/M Plus in C128, including a couple of tools.

CP/M patches for Spectrum +3 and Amstrad PcW16.

Comprehensive description on how to build a CP/M Plus version for the Commodore C128.

Information about CP/M and links to various CP/M resources.

Fixes and utilities for CP/M and Z-Systems, ZSDOS/ZDDOS, and B/P BIOS.

Some notes about Gary Kildall, CP/M and Microsoft from a former DRI programmer.

A technical resource about internals of CP/M.

Contains pictures of Digital Research people.

Information about the history of CP/M and Digital Research. Links to various CP/M resources.

German mirror of the largest public CP/M archive.

Archive containing software and documentation for the Osborne-1 and Osborne Executive.

An archive of antique software and manuals related to S100 and CP/M hardware and software.

Downloads and patches for CP/M-86. Updated regularly.

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.

CP/M binaries and documentation, including the original source code and manuals.

Downloads and information for CP/M, Z-systems and Z80 computers. Contains a collection of articles and manuals, too.

A free operating system for the Amstrad NC100 (Notepad) and NC200 (Notebook). It's largely compatible with CP/M 2.2.