BTW, an interesting trivia bit about the 8" floppy is that it actually came out in 1971, but originally just for a specific niche use as boot media for IBM 360s and 370s.
A couple engineers at IBM invented it because IBM wanted something fairly simple and self-contained as mainframe OS boot media, to replace booting from tape reels.
(I had thought I remembered that but checked it on Wikipedia to be sure.)