I have to say that any computer course that thinks fuse rating of PCs is something their students need to learn isn't worth the money you're spending on it. Especially given the *HUGE* range of power consumption of computers and equipment (see JohnInKansas's answer).

Hot-pluggable: Per Rapaire's answer, anything that can be plugged or unplugged whilst the computer is powered up ('hot') without damaging the computer, and whose presence or absence can be detected by the computer so that it can be used without rebooting. Also called "hot-swappable". Note that detection *doesn't* have to be automatic - you may need to select some option to say "enable this" or "let me remove this".

Graham.