At my first office job in the mid-80s, we backed up the computer every night on reels of magnetic tape. Here, in a scene from a slide show of 1980s IBM mainframe computer ops (all set to a snappy Sousa-esque march), tape librarians and console operators show how they did it at a large data center - which makes the amount of complaining we did about having to do two measly cartridges pale in comparison.
Tape? HA! Do you remember cards?
I do. My dad was a programmer in the 60s. He wouldbring boxes of used cards home and we'd use them for scratch paper.