a housing having a lid housing portion and a main housing portion, the lid housing portion having a rear side aligned with a forward extended upper side of the main housing portion;

a processor disposed in the main housing and operable to execute instructions to process information;

a memory disposed in the main housing and interfaced with the processor, the memory operable to store the instructions and information;

a display integrated in the lid housing portion and interfaced with the processor, the display operable to present the information as visual images; and

a hinge having a base fixedly coupled to the main housing portion, having a bracket integrated with an axle having a bracket gear, the bracket coupled to the lid housing portion, and having a gear assembly coupling the base and bracket to translate rotation of the bracket about an axis into sliding of the gear assembly to adjust a distance between the lid housing portion rear side and the main housing portion forward extended upper side, the gear assembly including a rack gear integrated in an upper surface of the base fixed in position relative to the base and main housing portion and a main body coupled to the base by a sliding member, the main body having a pinion gear and the bracket gear engaged with the rack gear, the bracket gear rotating around the axis and directly engaged with the rack gear from above the base upper side, the main body configured to slide along a sliding member within a central opening located at each side of the base, the central opening defining a range of sliding movement to adjust the distance.