Abstract: A pen-based portable computer, or pen-tablet computer, for use with a vehicular docking station that allows for the exchange or replacement of components thereof without the need for returning the computer to the manufacturer. The computer utilizes a main or primary housing for the major components of the computer, and a separate, independent, auxiliary expansion unit having its own housing for mounting a replaceable radio module that is connected to the main computer via a multi-pin connector, whereby the replacement or exchange of the radio module for a different one is easily and readily achieved, and where auxiliary or expansion devices may be connected to the main computer thereby, and where the auxiliary device itself serves as a handle for holding the main computer.

Abstract: A pen-based portable computer, or pen-tablet computer, for use with a vehicular docking station that allows for the exchange or replacement of components thereof without the need for returning the computer to the manufacturer, is provided with exterior, removable grips that not only provide a gripping function, but also provide shock-absorption and protection exteriorly of the computer-housing. Each grip may be selectively removed from attachment to the computer-housing, in order to allow access to the interior of the housing for repair and maintenance. Four such removable grips are provided, where each grip is provided with an actuable lever for removably locking the grip to a portion of the computer housing, with each actuable lever being capable of movement away from such locking engagement in order to allow removal thereof from the housing.