Do you mean the //c or the //e? The //c cannot take cards at all, being the small flat white one. The //e can take all that you mentioned. I do not know if the //c can take a hard drive, but I imagine so, if it is external (of course). However, I have a source in Adelaide of //c 1 meg memory cards - difficult to install, as you need to remove the cpu and several other bits, plug the card into the cpu socket and put it all back togeather again, but it is also the only way I know of expanding a //c's memory. Adam.