Computers Overview
Commodore PET
Sinclair ZX80
Sinclair ZX81
BBC Micro
Commodore 64
Sinclair ZXSpectrum
Memotech MTX
Memotech CP/M
Tatung Einstein
Atari ST
Commodore Amiga
DEC 3000 AXP
Raspberry Pi



Site Computer News

2020  <<    2021    >>  2022


December 2021

  • Nothing to report


November 2021

  • Due to popular demand (OK, Martin asked), I have made access to the pages on disassembling Memotech hardware more obvious and linked to them from the Repairs index page
  • Added some info to my MTX PSU page to document the internal fuse fitted to some MTX PSUs supplied to Europe. The presence of this fuse makes no sense to me - if you can explain it, please let me know.


October 2021

  • Nothing to report


September 2021

  • Martin has provided a Bug fix for the CFX-II ROM


August 2021

  • Nothing to report


July 2021

  • Nothing to report


June 2021

  • Added another game disassembly from Martin - Goldmine
  • Bill Brendling has ported Z-Machine (an interpreter for Infocom text adventures) to the MTX. Bill's description of the process and links to download it are available here.


May 2021

  • Posted a copy of Martin's upgraded version of his Z80 assembler for RISCOS
  • Martin has also started to share some disassembled code from MTX games that he has worked on. I have created a new page for them here. They should be instructive for novice, or even experienced, Z80/MTX programmers. If anyone else has similar stuff to share, please let me know and I will add it to the page.
  • Added Martin's latest program disassembly (Toado)
  • Added Martin's source and listing files for Text Mode Invaders, released at Memofest 2014
  • Added a new game, "Minesweeper", developed for MSX and ported to MTX by Under4mhz
  • Added a new game, "Vexed", developed for MSX and ported to MTX by Under4mhz
  • Added a new game, "Klondike Solitaire", developed for MSX and ported to MTX by Under4mhz


April 2021

  • Updated MTX Sales page to reflect recent increases in eBay prices for MTX
  • Updated MTX Survey page and associated statistics
  • Added some information about the workings of the piggy-back language ROMs to the keyboard page, based on Martin's disassembly of a couple of the ROMs
  • Added high res scans of the Chess, Draughts and Toado posters scanned by Mikael Anker Madsen and uploaded to by Claus. Available here on my Nick Mynheer artwork page


March 2021

  •  Nothing to report


February 2021

  • Another item for the collection! Jonas O'Brien in Norway recently advertised a Norbit Elektronikk Toolbox '85 on eBay but decided to donate it to me instead. The similar looking Toolbox '84 was advertised for use with MTX. The '85 has a slightly different lead and I/O sockets, but otherwise looks identical. Jonas also sent me an unmarked unit with the same lead and sockets as the '84 model for the MTX. Sadly, I don't have any documentation for it, but it's a great find!
  • Now that the much improved ReSource is available, I will make the original version of The Source available on request to anyone that can provide other Memotech documentation that is not already on the site - contact me if this applies to you.


January 2021

  • Expanding on Martin's original, Bill Brendling has contributed updates to ReSource
  • Another update to ReSource, this time by Martin, adding the details of his Diagnostic ROM board
  • Posted a review of the MTX500 from What Micro? of March 1984 (Courtesy of Rob Green)


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