I remember when the (spinning platter) hard drive on my PowerMac 7200/90 started to fail. I was told that some of the ball bearings in the drive were broken (), and when the drive detected a 'wobble' on the platter, the entire computer would just power down with no warning at all - it was like the sound of a vacuum cleaner powering off. Silence and a blank screen that looked like a power cut, followed by that "oh sh!t" moment.
I tried to describe to my kid the sound of a 5.25" floppy disc the other day. MMWA MWA mmmmmm MWAMWA mmmmmmm.
He has seen 3.5" discs, but never the large floppies. His mind almost exploded when I talked about games needing 7 or 8 discs and hitting certain points where the game would pause while you put a new disc in.