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The Memotech MTX Series |
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MEMOTECH DISK SYSTEMS
FDX Single/Dual Disk System
Software Compatibility
Introduction
Memotech disk systems came in various forms with
different software utilities provided to support their
operation, unfortunately, many of the different programs had the
same names and it is not always clear to which system a given
file relates to. This is probably not a problem when disks/files
are only used with their intended system, e.g., when on the
original system disk. However, as more disks and orphan files
become available, either on disk images or as separate
downloads, it is becoming harder to identify and segregate these
files. This page is intended to summarise the different software
available for the Memotech disk systems, and hopefully, provide
the necessary information to be able to identify the appropriate
software for a given system.
The information on this page is based on my
reading of various Memotech product data sheets as well as my
own investigations with my FDX and SDX systems. If you are aware
of any errors or omissions on this page, please let me know.
FDX Systems
The FDX was available in a number of configurations, all of
which used the FDXC1 disk controller, internal
drives and needed the RS232 / Bus Interface card fitted inside
the MTX :-
Non-CP/M Single Disk Supplied with FDX
Single Disc BASIC, display output was via the MTX
on-board VDP providing a 40 column colour screen |
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CP/M Single Disk |
CP/M Twin Disk
The CP/M
versions included an 80 column graphics card, the
CP/M operating system, FDX BASIC and allowed
simultaneous video output on an 80 column colour or
mono monitor as well as via the MTX on board VDP |
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The non-CP/M versions of the FDX were a stripped down version
of the CP/M system, the internal transformer providing power to
the MTX computer and the 80 Column graphics board were omitted,
the MTX PSU was needed to provide power to the computer.
Somewhat confusingly, the single disk versions are sometimes
referred to as SDX systems in early Memotech documentation, on
this site, SDX is used to refer to the later models of floppy
disk controller that connected to the MTX cartridge port, rather
than the larger, FDX type, system.
You can
see photos of various FDX systems on my
FDX Photos page, the rear of Claus
Baekkel's single disk, non-CP/M FDX is
shown here.
SDX Systems
The SDX was also available in a number of configurations,
using one of two different disk controllers :-
First
version of the SDX Controller
With
external 5.25" disk drive(s), also supported 3.5"
drives
Non-CP/M Single Disk
Non-CP/M Twin Disk
CP/M
Single Disk
CP/M
Twin Disk |
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Later
version of the SDX Controller
With
integral 3.5" disk drive
CP/M Single Disk |
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Interface Software
Non-CP/M versions of the FDX
Software Issues
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