Quite a book! I will be digging into that. I've been working through Robert H. Johnson's 1989 MVS Concepts and Facilities book. From my explorations, I'd like to write something reasonably concise as a tutorial for the Digital Technology boy scout merit badge, as a guide for extra coursework for an AP high school class or for someone who is curious and wants to try their hand at mvs-tk5.
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Dave
Dave K3DFD