Re: Oh, the joys
"Macs would load the bell sound file from the floppy disk, every single time, no caching."
Umm. The original Macs only had 128K RAM but would happily go "bong" on startup before anything had loaded from disk. The system beep sound was a sound resource kept on disc. From what I understand of the early Macintosh System Software memory management techniques, they could have kept sound resources in RAM for repeat use. If in practice this did not happen, I'd guess it was due to the woefully small amount of RAM fitted.
I suspect I've still got two floppy disc powered Macs, neither used for a very long time: a 4MB Mac Plus and a Mac 512Ke (1/2 MB).
They both played their system beeps - a sound resource which is loaded from disc - without delay most of the time.