I also remember the "computer room " it was a very mysterious place that only a select few were allowed to enter.
Now called a datacentre, still air-conditioned, and we still don't let just anyone enter. You're not missing much, though. No natural light, lines of racked servers, quite noisy because of all the fans. It is one of the least favourite parts of my job. If you have everything on the cloud, it's still like that, just massive, massive datacentres with Internet connections.
I do miss the smell of freshly Banda'd exercise sheets.
I did typing as a 6th form elective - "girls of your calibre won't be secretaries," but girls of that calibre had to pay someone to type up their final year dissertations, if they hadn't learned to type, and couldn't get temping work as easily.
I used to have to type up library catalogue cards (and them file them in the card catalogue) - I was working in a medical library, and I still sometimes type -la rather than -al (right hand stronger than left). I had to redo any number of cards - medical, biological, physical, chemical, virological, bacteriological, haematological... almost every card had at least one -al suffix on it.