This is one of those things where formally, sure, there’s a difference, but I’ve never heard anyone use that first term. Everything’s a loanword. And these kinds of things are in many, if not all, languages, from my attempts at learning other languages.
Isn’t almost any keyboard able to last that long?
I make sure any motherboard I buy has at least 8 USB ports, so I know I’ll have enough. It does make sense to use the PS/2 port if you have the peripherals. What advantage does USB have over it anyway?