A mobile or hand held computer system with a touch screen graphical display functions as a programmable interactive touch screen map. A reversible image display medium is produced by a method comprising the steps of accommodating a dry developer into the concavities and fixing a second substrate to the first substrate using an adhesive. A test line is connected to the output line. The computer-implemented method further comprises generating at least one annotation of the multi-media system with the identified and converted at least one of the text-based data, the voice-based data, or the video-based data. The LNA has to be designed to accommodate a wide range of gain. The slider guide is configured so that the slider travels along a generally U-shaped path in its transit from the transition point to the pre-insertion position.