Romantic story telling for a line graph, but really it is more like the profession of computer operators, originally drawn from the largely female secretary poo

Romantic story telling for a line graph, but really it is more like the profession of computer operators, originally drawn from the largely female secretary pool, disappeared as computers evolved from big buildings where you submitted decks of punched cards to their modern form. Nowadays we have IT, EE, CS, etc. but these are really different professions than what was originally mostly women. The first crop of nearest equivalent computer scientists usually majored in mechanical engineering, simply because there were no computer majors yet and the computers were much more mechanical, and had the same gender imbalance we see today.