[XtalJ]

The easiest way is probably to buy an old computer from the eighties, but they can be very expensive :0 I don't know much about other homebrew computers, but mine (Calculon/80) could probably be expanded with those things. I haven't tested the expansion port yet, but I will when have some time :-) Also, if it does not have to be using the Z80 CPU, I would recommend the Motorola 68000 CPU, which I will use in my next project.

[mysterydip]

I'll check out the 68000 stuff. I've mostly been looking at z80 and 6502 at this point, so maybe that's the key to a wider world.

I enjoyed reading about the Calculon/80 and look forward to seeing your next project.

[XtalJ]

Thank you :-)

I think that the 68k will be more fun to write OS and other software for as it is 32-bit, has memory protection, and can run UNIX :-)