57) ABSTRACT A Document Card (DocuCard) for storing documents and which is content
revealing. The DocuCard is a transportable unit having a nonvolatile storage means for
storing infor mation in a digital form, a control processor for processing user initiated
functions; an I/O port for interfacing to exter nal devices for reading and writing digital
information, and a user interface for allowing a user to directly interact with the DocuCard.
The user interface on the DocuCard includes a display for displaying lists of functions and …