Seeking information on this OSI Computer

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Eardrum
Posts: 1
Joined: Thu Dec 09, 2021 6:09 am

Seeking information on this OSI Computer

Post by Eardrum »

https://imgur.com/a/lmicJw2

Hello, first post here, I will start this off with saying I have very little knowledge in this field so bear with with me if I say something silly! :D

I was given the above pictured OSI computer; at the time I thought it was a Challenger 1P purely based off google images but after posting around it appears it is not. I havent taken it apart fully to see the main computer, but the whole thing looks very homebrew. The case is a combination of unpainted wood and thin plastic with the whole bottom of the computer being a piece of black painted wood. The floppy drive unit has solely a floppy drive, and a huge empty space next to it.

Any info on what it is and or its value is appreciated!
RedskullDC
Posts: 62
Joined: Thu Jul 18, 2013 11:24 am
Location: Dorrigo, NSW , Australia

Re: Seeking information on this OSI Computer

Post by RedskullDC »

Hi Eardrum,

That looks like a C1p (600) board underneath from what can be seen through the holes.

Some kind of homebrew expansion board on the top :)

Some close-ups of the larger chips on the top board may give some indications on what functions it adds.

Cheers,
Leslie
Superboard II - RevD, 8Kb, DABUG monitor ROM.
C1P - RevD, 610, 2 drives, CEGMON.
FPGA C1P/C2/C4. 1-8MHz, 48Kb ram, CEGMON, 16KB Hires.
BillO
Posts: 216
Joined: Tue Jul 08, 2014 4:03 pm
Location: Canada
Contact:

Re: Seeking information on this OSI Computer

Post by BillO »

The board on top looks very much like a home made 610 board with some mods.
Box stock Superboard II Rev. B
KLyball replica 600D, replica 610 & KLyball Data Separator
OMS SBME and SBME+ memory cards
OMS Digi-Mule expansion bus
KLyball memory card
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