osiweb.org

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!

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!

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

The board on top looks very much like a home made 610 board with some mods.