I used to work in a hotel in London as a receptionist, back in my youth, using a dolls-eye switchboard i.e one of those you see on black and white films where the receptionist has a load of 'holes', one for each telephone, and a load of cords with connectors on the end for each incoming call. A little 'dolls eye' indicator told you which lines were in use. I loved using it. No one I know has ever seen one apart from TV.
When I started work as a computer operator (1980-ish) the fastest computer we had (all mainframes then, no PCs) had 8MB of memory and was as big as my smallest bedroom is now. It was state of the art at the time. I remember trying to explain my job to my DM, who had never seen a computer and didn't understand what they did, and the closest I could get was an old episode of something like the Champions where a girl was putting a magnetic tape reel on a tape drive ?