Comment Ampro Little Board (Score 2) 857
I put together an Ampro Little Board with 64K of RAM. It ran CP/M and mounted directly on a surplus 5-1/4 inch floppy. I added a second floppy to double the storage and used a surplus HP dumb terminal that had a thermal printer built in and a 300 baud acoustic modem for I/O. It was good enough to run Turbo Pascal and got me through a college CS degree back in the '80's.
http://oldcomputers.net/ampro-...
I still have the hardware but haven't booted it in over 30 years, so the drives probably won't fire up any more.