Abstract: A hinge assembly which has a limited number of stable positions and in which the hinge automatically moves to the closest of such stable positions is disclosed. The movement of the hinge is accomplished in one illustrative embodiment by positioning the protrusion on one of a pair of ramps inclined opposite to one another and toward the adjacent recess so that the parts of the hinge rotate relative to one another, moving the protrusion into the adjacent recess. The protrusion is pressed against the ramps and the grooves by a connecting portion that joins the arm portions and is flexed when the hinge parts are assembled so as to bias the arm portions toward one another.

Abstract: A pen computer has a double hinge connector and a first member which is rotatably connected to the connector. The first member has a pen sensitive screen. A second member, having a flat surface, is also rotatably connected to the connector. The pen computer is in a closed position when an angle between the first and second members is equal to zero degrees. The pen computer is in an open position when the angle between the first and second members is substantially equal to 180 degrees. When the pen computer is in the open position, the flat surface of the second member is substantially level with the pen sensitive screen of the first member, such that the flat surface is operable as a palm rest for facilitating the use of the pen sensitive screen.