Abstract: A tablet computer enclosure (TCE) that functions in combination with a tablet computer. The TCE includes a back plate that is surrounded by a frame to form a front-facing cavity that is dimensioned to fit over the rear surface of the computer. Rotatably attached to the rear surface of the back plate is a TCE attachment arm that can be placed in a retracted position when not in use, or in an extended functional position. When in the extended position the TCE attachment arm can be inserted into an arm insertion slot located on a TCE attachment unit that is disclosed in three designs: a vehicle headrest attachment unit, a shelf attachment unit and a flat surface attachment unit. The TCE also includes an electrical power distribution and charging circuit that allows power to be applied to the tablet computer via the TCE.