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Roland Huisman
October 7th, 2017, 08:30 AM
Today I've picked up an old Proton Concorde computer at the second hand store...
Does anyone know something about this machine? The serial number is 000016
so I'm afraid that this is some obscure machine... The CPU is a Z80.

41153 41154 41155 41156 41157 41158

And the eprom dump: 41159

PMON-monitor (c) 1984
It is written by: G.Wiselius

The CPU in the keyboard is an ef6802p.
4117441175

And the Keyboard eprom: 41173

I've to figure out those DIN connectors...

Regards, Roland

JonB
October 8th, 2017, 01:27 AM
That's an interesting find.. how much memory has it? I wonder if it can run CP/M?

krebizfan
October 8th, 2017, 07:11 AM
Proton also sold the basic board without a case under the moniker CompactBoard 80. There have to be specialized magazines that covered SBCs that aren't online that would have more information.

I only found one reference to it: an English ad in a Dutch Electronics magazine. https://www.scribd.com/document/337258875/Elektuur-276-1986-10 jump to page 105. Impressive specs for a Z-80 CP/M board in the mid-80s especially for the under $200 market.

Roland Huisman
October 9th, 2017, 10:28 AM
Thanks for that link! I'm Dutch and live in the Netherlands. The machine seems to be made in the Netherlands as well.
Trough a Dutch vintage computer mailing list I've learned that these Protons were made by the same
people which made the PCB drawing program Ultiboard and Ulticap. I hope to get software for it trough that mailing list.
It seems this computer supports a color display. The OS is some version of CP/M. I wonder how color is implemented in CP/M.

Regards, Roland

krebizfan
October 9th, 2017, 11:36 AM
Please update the thread if you get any information. I have some conjectures as to the board design and am curious if I was right.

I am expecting the board to be very similar to the Ampro Little Board with the external connectors following the Acorn standard to use Beeb cables.

Roland Huisman
October 10th, 2017, 10:43 AM
So this is going very fast :-)

Thanks to Arie de Muijnck the documentation is now available.
https://ademu.home.xs4all.nl/CB80/

He has also two disks with the operating system and he got this machine also.
So I'm very curious for what more might come up!
I wonder if this is interesting enough to put on Bitsavers...


That's an interesting find.. how much memory has it? I wonder if it can run CP/M?

My board has 64KB but the maximum is 128KB. The OS is called "Combidos 80".
Arie told me that this is some modified CP/M version.

Regards, Roland