floppy drives???? uh no....
power supply???? uh no....
motherboard????? bios only.... but many computer manufacturers use there own....
usb connections??? uh no.....
power button???? uh no....
I suggest readin up or cracking open a computer before you just start slamming....
I may be a bit late on this, but better late than never.
Ok, here goes nothing...
I work for the company that handles the onsite service Compuke I mean Compaq uses for replacement parts. I have "cracked open" many many compaq computers and happen to fall under ZaNtHeR's requirement before one is allowed to start slamming.
With that said lets talk about the devices again.
floppy drives - Depends on the model, some have no faceplates because the bezel is the faceplate. You can pull it out and it would function just fine in any PC. It would just look like crap.
Power Supply - I'm not sure what they're using now, as I'm not doing the PC repairs anymore, but I know the one complained about in this message. This power supply has an AT like connector on it with another cable that is primarily orange and black wires. It's been so long since I've seen them, I forget what they're used for, but I have not see any other power supplies like it. It would work just fine for an AT MB if you had an old 486 or early Pentium you were still running, but the wattage on these power supplies are bare minimum to run the PC as it is, so I wouldn't trust it enough to put it in an older PC.
Motherboard - Well yes the bios of course. You can't configure much of anything in it at all. It also depends on the model, some are configured ATX and some are not. They are configured specifically for their case, which would probably work in another case if you just had the back panel removed altogether and you took the power supply with it.
As for USB connections and power button, well, it's been so long I really cannot comment them cuz I just can't remember how they're configured.
All in all, I think we all know that Compuke, I mean Compaq sux, so does HP, Dell, Gateway, IBM, Sony, and whoever else is still making prefab'd systems. Although Dell and Gateway are much better in the fact that the majority of their stuff is swappable. (Excluding MB)
BTW - Who else is still making "named brand" systems? Geez, I think a good majority has gone out of business.
Take Care,
RJ