Ohio Scientific Challenger Series

I remember once while on a family roadtrip I found a magazine in the car. It seems to me that the front and back covers of the magazine were torn off, as can happen easily when a magazine is left on the floor of a car. I think it was an issue of BYTE Magazine, but I'm not sure.

There was an article detailing a single board computer with diagrams. The computer was an Ohio Scientific computer, probably a Superboard. http://oldcomputers.net/osi-600.html

These were very cool machines, and pretty cheap. They used a 6502 processor and had BASIC and machine code monitor in ROM; sort of a poor man's Apple II. For the money it was a better machine. With better marketing and a nicer looking case perhaps they could have given Apple a run for their money.