NSA’s Harvest Computer

Interrupting a stream processor
Memory Bus
Corner turner routine
Doing Physics?
virtual zeros
Instructing a Stream Unit
a few comments

Jim Pomerene designed most of the Harvest.
Programming Manual
Computers at NSA from that period
Harvest is mentioned in this retrospective on general purpose computers at NSA, and these reminiscences of prominent users when the system was 10 years old.
Early Cost Estimate

Googling Stretch Harvest

John Cocke Interview.
Early Harvest Story (I don’t remember Hunt, but his story is consistent in many details with what I remember and some such precursor must have happened.) Also see reference to RYE which is described by Bamford as a 1965 system hosted by harvest to provide interactive access to code breakers.
Good clean image of Harvest Manual
Interview with Fran