A computer apparatus includes a computer processing unit including a processor
device for operating upon data and providing data for display. The apparatus further
includes a handheld input/output display unit. The display unit includes a housing
sized to be grasped by a user's hand. A computer display is located within the
housing at a position to allow the user to view the computer display through an
eyepiece. A display driver is used for presenting data from the processing unit
on the computer display. Navigational input tools are integrated with the computer
display in the housing and operatively connected to provide user input to the processing
unit. The navigational input tools are positioned for operation by one or more
fingers of the user's grasping hand. The computer processing unit may be integrated
within the housing of the handheld input/output display unit. The navigational
input tools may include a mouse having a force actuated pointer and at least one
button, e.g., a single button mouse or a two button mouse, or may include a three
button interface.
