This invention discloses an electronic apparatus for processing language information of plural languages, on which an external memory device is detachably mounted, whereby specific character information stored in the memory device is displayed and desired character information therein can be selected and entered by a selector. A message is displayed at a predetermined timing of processing with an expression corresponding to the language information stored in the memory device. Control information stored in the memory device is utilized to display a function of language information processing activated, for example, at the start of power supply.