MULTI-USE MEMORY CARD WITH DISPLAY UNIT

摘要

A storage device storing a plurality of pieces of authentication information is provided. The storage device includes a display allowing a user to determine the authentication information stored in the storage device and to select desired authentication information from among the authentication information displayed thereon. The store device performs authentication processing on the authentication information selected by the user. The storage device may be a memory card having a display. The memory card may be used for various use purposes by changing information displayed thereon according to a desired purpose.