PORTABLE STORAGE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a contents display-type portable storage medium for storing and retrieving a document.

SOLUTION: A portable storage medium document card is a portable unit having: a nonvolatile storage means for storing information in a digital form; a control processor for processing a function and a request started by a user and accessing a document stored inside; an input/output port for interfacing the document card to an external device in order to read/write digital information; and a user interface 601 for making the user perform direct dialogue with the document card. The user interface includes: a plurality of traversal keys 606 to 609 for making the user traverse a list of the functions and the documents; a selection key 610 for making the user select a highlight function or the document; a processing means for processing the function generated by the user; and a display 603 for displaying the list of the functions and documents and information corresponding to the function generated by the user.

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