Can you imagine a computer that doesn't have a hard drive (that isn't like a trs-80 or apple II, that is)? It would be awesome! 20 gigs of ram would serve as both temporary storage and permanent storage. THe ram could be powered when the computer shuts off and there would be a battery just in case the plug is pulled. 20gigs of ram would cost $5000US at the moment, so it would be possible if we had 64bit processors 🙂.