1. An integrated input/output device for a computer system having a primary display, the integrated input/output device comprising: a plurality of alphanumeric keys for receiving character inputs from a user; an input-sensing display device configured to provide displays supplemental to the primary display of the computer system and to receive display selection inputs from the user, the input-sensing display device positioned proximate the plurality of alphanumeric keys; and an interface configured to provide the character inputs and the display selection inputs to the computer system and to receive supplemental display data for displaying on the input-sensing display device.