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Diagram of the Interactive Between Man and Machine in the Interpretive Structural Modeling Process
This 1973 sketch shows the interaction between humans and digital computers, to be used in the Interpretive Structural Modeling process devised by Warfield.
Warfield with PENNSTAC Computer, 1973
Warfield was one of the chief designers of the PENNSTAC computer in the 1950's. Here, on a visit to the Penn State Campus in 1973, he poses with the computer - no longer in service, and housed as museum piece on campus.