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US PATENT DOCUMENTS An apparatus for responding to a current user command 4,974,191 A 1 1/1990 Amirghodsi et al............ 709, 8 associated with one of a plurality of task/domains. The 5,224.205 A 6/1993 Dinkin et al................ 709/226 apparatus comprises: a digital storage device that stores 5,511,208 A 4/1996 Boyles et al....... TO9, 223 cumulative feedback data gathered from multiple users 5,659,731 A 8, 1997 Gustafson...... 395/604 during previous operations of the apparatus and segregated