My training is in Mechanical Engineering, after slide rules and before computational fluid dynamics (CFD). A key part of undergraduate was finding the punch card machine that no one knew about under the stairwell, somewhere. Then making sure you double banded the stack of cards, so that you did not drop them and lose the order, on the way to computer hub where you put them in a pigeon hole. They would run the cards and in the afternoon you would get your deck back with some green and white tractor paper with results.