I recently inherited a SWTPC 6800 and a fair number of accessories and peripheral cards from a late friend of my father's. The 6800 was one of the first personal computers, released in 1975, which makes my unit the oldest computer in my collection. The SWTPC 6800 takes its name from its CPU, the Motorola 6800, which was one of the earliest microprocessors, and it refreshingly utilizes a non-S-100 bus. In fact, it created its own minor bus standard called SS-50 that manufacturers like Smoke Signal Broadcasting incorporated into compatible machines.
The 6800 is really neat machine — I cleaned up all the boards, but I can't get it to boot so far. I'll have to give it a shot again at a later date.
Discussion Topic of the Week: Do you own any computer released prior to 1977? Tell us about it.