Photograph of a computer diagram entitled "6600 Channel & PPU Organisation". The diagram illustrates the organisation of channels and peripheral processing units for the CDC 6600 computer which was manufactured by Control Data Corporation and came into use in 1964.

This is one of a set of photographs showing computers, computer components, computer structure diagrams and computer programmimg instructions, probably used as aids in teaching computing subjects. The diagrams and instructions relate to several pioneer models and systems of stored program computers dating back as far as the 1950s and including CSIRAC (originally known as CSIR Mark 1), Cirrus, Atlas, IBM System/360 , CDC 6600 System, and Illiac IV.

Description of Content

Block diagram showing the Channel and Pulse Processor Unit organistion for the CDC 6600 supercomputer.

Physical Description

Black and white photographic print of a computing block diagram.

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