A little earlier than me. Vic 20 had just been superseded by the C64 when I first got into IT, think it was 1986
When I started, our 2nd most important machine was a Sperry Univac. Every week we'd have a morning of training on just how to boot the thing etc. First we had to boot the support processor using something like a 9" floppy and octal keypad. Then we had to say whether to load the op system into low or high memory etc etc.
Just learnt the whole lot off by heart and they replaced it with a Data General where you simply pressed "B" to boot
We also had a Cray supercomputer which at the time was the best around (thing that looks like it has a seat all the way around it). They had a bit of software where you would mount loads of reel to reel tapes, it would spin them so fast that it would play a tune.
At the other end we had things called something like a Gould Sell where we had disks the size of washing machines that held a massive 330MB, if you played the inbuilt chess game, whenever the Sell thought of it's move, all the tapes stopped spinning lol, if memory serves me correct, even had to use punch cards to do certain software loads on it. I also seem to remember that every few months this lady in white overalls would appear and manually clean all the disk platters.
They were the days lol