13. A smart card, comprising:
a microprocessor and associated memory; and
a plurality of contacts for transferring data to and from said microprocessor and memory, said plurality of contacts comprising a predefined set of contacts associated with an operating protocol and including a first data input/output contact for connection to a data input/output terminal of a first peripheral device which provides at least one of the functions of user input to said microprocessor and/or presentation of data output from said microprocessor to a user, and at least one other data input/output contact for connection to a data input/output terminal of a second peripheral device which provides at least one of the functions of user input to said microprocessor and/or presentation of data output from said microprocessor to a user.
United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)