Originally Posted by solipsism
A couple historical points. The floppy drive was entrenched until Apple removed them all. USB didn't take off until after Apple added it across the board. The smartphone industry was lingering until Apple entered the market. WebKit has become the most popular internet browser. And just look at everything MS does to make Windows more Mac OS-like. Et alii, at cetera, ad nauseam.
I'd say that Apple realised inevitable changes and was faster to apply them before the others, but to say that Apple forced others into abandoning FDD, Serial, Centronics... is a bit over the top. Especially when you consider that, when some of those changes happened, Apple was not even remotely strong and popular as it is today.
For quite a while major role for FDD was that older versions of Windows actually required DOS floppy diskette to initiate Windows setup, kill/create partitions (famous fdisk, if my memory serves me well)... also to load some critical yet not standard drivers during that setup (RAID controller, for example). Coincidently, for older motherboards, optical drives were not bootable. Once MS did come out with fully floppy-less setup and manufacturers adopted bootable opticals, FDD was destined to die.
Do you really believe PC industry would still be using floppies and other old tech without Apple around? Because, frankly, I don't. IT industry adopted things that were cheaper, faster, easier to apply. They skipped on massively implementing other things they didn't find enough reasons for, even if some of them were good ideas (Firewire, display port...) and some other things are being adopted through industry without or before Apple did - BR, card readers...).