The original Apple Computer, also known retroactively as the Apple I, or Apple-1, is a personal computer released by the Apple Computer Company in 1976. It was demonstrated at the Homebrew Computer Club in Palo Alto, but few took it seriously.
The Apple I was Steven Wozniak’s first contribution to the personal computer field. It was designed over a period of years, and was only built in printed circuit-board form when Steve Jobs insisted it could be sold.
The Apple I was based on the MOStek 6502 chip, whereas most other “kit” computers were built from the Intel 8080. The Apple I was sold through several small retailers, and included only the circuit board. A tape-interface was sold separately, but you had to build the case. The Apple I’s initial cost was $666.66.
Today, at least 61 Apple I computers are documented to exist and only six have been verified to be in working condition. On July 2013, a working Apple I was sold for $390,000.
This is a print with the ad for the Apple I