One of my first jobs was during high school, where I was doing cost accounting, and I had to use one those monsters.

This was in the days of punch card "computers".

I had to mark up the cards with the info, then give them to the "computer" department where my aunt worked as a data entry clerk (typing on a punch card machine) then handling them off to the "computer" guys who ran them through card sorter, etc, etc, so they could have a printout for inventory and payroll.

Man, I am old....LOL