In article , Ed Huntress says...

The big difference, and the line of demarcation, is between control systems
that are numerically programmable, or programmable with a discrete set of
symbols or numbers, and those that require making a proportional-control
pattern or model.

Right, the paper tapes are real programs, the punches denote
ones and zeros, I think they're either ascii or G code.
G code = excess grey?

Jim

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