I'm not certain how they aggregate these numbers. I assume that includes a lot of technical schools that might have had “computer operators” and “programming”

I'm not certain how they aggregate these numbers. I assume that includes a lot of technical schools that might have had “computer operators” and “programming” shorter degrees. But these would not match to a modern CS education at a serious school. Back then a lot of corporate divisions had “analysts” in charge of writing the program and “programmers” in charge of typing and running the program. You could still see remnants of that around the 90’s, especially with offshoring (keep the analysts in-house, offshore the “programming” abroad). Knuth was considered an oddball in the 60’s and 70’s for instance because he would keypunch his programs himself (and was apparently quite fast!). Most professional devs/software engineers who graduated around that time (early 80’s) did so from EE programs. These were not balanced in terms of gender. It’s also around that time that “modern” CS programs started to emerge (either from math departments or EE).