updated 01:05 pm EDT, Fri May 18, 2012
Historic predecessor of Commodore PET
A MOS Kim-1 single-board computer, originally released 36 years ago in kit form for $245, recently sold on eBay for $1,550. Following the acquisition of MOS by Commodore International, the historic computer became the basis of the Commodore PET.
The Kim-1 was a single printed circuit board based on the 6502 eight-bit processor, incorporating a 24-key keypad, six seven-segment LEDs, and 1kB of RAM. Offering a way for users to play with the processor, the Chuck Peddle-designed board came to market in 1976 in kit format. With options to expand the memory and to load BASIC from cassette tape, Kim-1 found its audience. After being bought by Commodore, the kit survived for a while before being pulled. The following year saw the release of the Commodore PET, the same year as the also 6502-based Apple II arrived.
The eBay auction ended on May 17 and consisted of still-wrapped and original-condition parts, complete with instructions and a blue plastic box as an optional casing. [via The Register]