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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.
PENNSTAC: Fast Memory Switch Wiring Diagram
This one page excerpt is from a large binder of computing materials related to the PENNSTAC computer project at Penn State in the 1950's. Note that the diagram has been approved and initialed by Warfield.