Computers Overview
Commodore PET
Sinclair ZX80
Sinclair ZX81
BBC Micro
Commodore 64
Sinclair ZXSpectrum
Memotech MTX
Memotech CP/M
  CP/M About
  CP/M Commands
  CP/M Cookbook
  CP/M Emulation
  CP/M Structure
  Custom FDX CP/M 
Tatung Einstein
Atari ST
DEC 3000 AXP
Raspberry Pi



The Memotech MTX Series


NB: Everything on these pages relates to CP/M 2.2 - the version used by Memotech and the BBC Micro.

For general information about CP/M - see the About page

CP/M is the operating system that was used on a wide variety of 8080/Z80 computers, including the disk expansion options for the Memotech MTX series and the Z80 Second Processor upgrade for the Acorn/BBC Microcomputer. The hardware for the various Memotech disk systems can be found by following the Memotech MTX link and the BBC Z80 Second Processor by following the BBC Micro link.

The Menu bar on the left will take you to a selection of my pages which include links to various generic CP/M documents and a range of CP/M software, as well as some brief technical details of CP/M. This site is not intended to be a comprehensive resource for CP/M - there are a range of excellent sites on the web for that - just type "CP/M" into Google ! Alternatively, a selection of the sites that I have used is listed at the bottom of the page.

This page hosts copies of the manuals for the Memotech CP/M systems

 Memotech Single Disk (SDX) Operator's Manual (Courtesy of Peter Ketzschmar)
 Memotech Dual Floppy Disk (FDX) Operator's Manual (CP/M Manual) (Courtesy of Peter Ketzschmar)
 Memotech Dual Floppy Disk (FDX) Technical Manual (Courtesy of Peter Ketzschmar)
 Memotech FDX Disk BASIC, Overlay 8, and Contact (Communications Program) (Courtesy of Peter Ketzschmar)

Scanned copies of my FDX Original Documentation, 2013


 Memotech FDX Technical Manual


FDX Overview, Disk Controller, 80 Column Card, Bus Interface Card, Back Plane, Silicon Disk, Communications Board


By Memotech Computers

CP/M and Memotech application software manuals

are on the CP/M Documents page


CP/M Related Books

There are copies of a number of published books in the Projects area. Please read the note at the top of that page about the basis on which these books are posted. The CP/M publications are at the bottom of that page. Titles include :-
Mastering CP/M CP/M User Guide CP/M Handbook with MP/M          


CP/M Related Links

Obsolescence Guaranteed  The CP/M Internals page from Oscar Vermeulen's Obsolescence Guaranteed website  Information on the history of CP/M and Digital Research
Tim Olmstead Memorial Library  Manuals for Digital Research software
The Unofficial CP/M Website  Good source for CP/M software and documentation
Gaby's CP/M Centre  More resources and links to CP/M
Seasip  Good all round resource for CP/M by John Elliott
Micro Vibe  Some useful information on CP/M and hints on using it.

 There are some very helpful descriptions of BIOS, BDOS and the CCP on that site.

Wikipedia  CP/M Entry on Wikipedia


CP/M Programming & Development Tools

Free CP/M C Compiler  CP/M C Compiler - requires an 8080 OR Z80 Processor
Mix C Compiler  CP/M Mix C Compiler - Royalty Free
Various C Compilers  Links to a host of C Compilers (Aztec, Small C, Mix etc.)
Assembly Language Tools  Collection of CP/M Assemblers and Linkers


CP/M Software

Retroarchive  Download a range of ex-commercial software
CP/M Pages  Generic CP/M Software Downloads
Herne Data Systems  Archive of legacy CP/M Software



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