A compact electronic apparatus, particularly a personal computer according to the invention comprises a housing (4) and a card storage section (125) with an insertion opening arranged on a peripheral wall thereof for storing a function expansion card (127) as defined by a selected standard. A connector (300) of appropriate dimensions is arranged within the card slot. Such apparatus is compatible with any cards having dimensions defined according to the selected standard. Therefore, it is not necessary to provide independent card slots for each card size at the housing and the housing size can be minimized. <IMAGE>
