Integrated Circuit Boards manufactured by IBM, dating from the late 1960s. These circuits contain what should be more correctly called 'composite' circuits. These contained about 10 to 20 components. Composite circuits were one of the first steps towards miniaturisation. These circuits were probably used in an IBM 360.

Physical Description

Five integrated circuit boars and one carboard box - see images. Each component is labelled and a punched card is attached to box.

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