KIM-1 Single board computer purchased 1980. This 6502 based system has 1K RAM, and two 1 K ROMs containing a monitor program. Input and output was through the keypad and 7-segment LED display, though the KIM could also be connected to a teletypewriter. This development board was an inexpensive way for hobbyists and small companies to learn more about the 6502 processor. This particular board has the Commodore logo and bears serial number 12674. In this picture the KIM is shown lying on the schematic diagram partly visible. The small aluminum box at the lower left side is a home-made expansion interface for connection of peripherals such as an audio cassette recorder. This image is released to the public domain.

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