When Vimos Kopacsy was in Munich in autumn 1989 he presented me a MIDI-catridge for the ENTERPRISE. The cartridge was longer than a standard EC cartridge and contained an eprom, an EF6850P async I/O chip, some Ics and two MIDI-connectors for MIDI out/through. The software was far away from being ready, but the cartridge was already able to play some midi-files. He brought a Roland MT-32 digital sequenzer to show communication and the result was impressive.

I can't believe it !!!! The first song is definitely played by the ENTERPRISE and I think it was on a Roland MT-32. I will never forget this song, because it was the first one that Vilmos presented me in Munich. It is very much like something from Jean Michel Jarre and that is the reason, why I am remembering it so well. The others I cannot remember, but Vilmos had a wide collection of them.
 
The sound is coming from a MT-32 or something similar of that time. You can hear that, because the voices sound a little "metallic". You can find some sound-demos of the device under
 
https://web.archive.org/web/20040509162801/http://homepage.mac.com/synth_seal/html/mt32.html
 
What a pity that we do not have some Scoretrack-Files for the cartridge. I played a little bit with Scoretrack and I think the preset for the voices (8 + 1 channel) was also taken from the MT-32, but I am not shure. Maybe I can take more screenshots of the program later.

EXDOS - Engeneering sample

- Small mounting hole
- the FDD connector is not the flat one (90°) but an upright one.
- Yellow placeplan
- Shorter edge connector (2mm shorter than final version)
- Sligthly different contour on the edge connector

This version does not fit to the final EXDOS controller housing.

EXDOS - Early version - small hole

- Small mounting hole
- Shorter edge connector
- Contour of the edge connector is not optimal for System Bus Bridge (alignment is wrong)

EXDOS-Controller with handcrafted Box

- A handmade sample of a controller in a box. This sample was used for some press pictures, as there was no Exdos-Box at that time.
The handmade controller from UK can be seen on the following page together with the Cumana double fdd:
http://www.zock.com/8-Bit/D_Enterprise64.HTML

EXDOS-Controller in Polybags

- Exdos, as it arrived in Germany in polybags. The controller plastic housing parts have been shipped separately, but I do not have original samples anymore.

EXDOS-Final version

- Bigger mounting hole (8mm diameter)
- Long edge connector

This version fits to the final EXDOS controller housing.

- Pictures of a German controller and the original English retail controller

This is my DIY double fdd drive, made of OEM drives and OEM housings, that I got at a very low price in one of the electronic ware houses in Munich. I could never find out, who originally made/sold them, but the drives are from EPSON. I made an external power supply (12V/5V) for them and used them for several years on my own ENTERPRISE 128k.