Computer system with jog dial function and the user interface scheme thereof

Abstract

A computer system includes a control panel having a rotary switch and a plurality of push button switches provided in the front bezel of the computer main body. The rotary switch uses a well-known endless loop type rotatable switch, called “jog dial”. The jog dial is used for selecting an application program among a plurality of programs stored in the computer. Also, the button switches are used for performing a specific function relative to the control panel. A microcontroller is provided to produce predefined key scan code data corresponding to each switch signal input from the control panel. The computer system determines whether a key scan code data corresponding to the operation of the control panel is inputted and produces a command for performing a function corresponding to the rotation of the rotary switch or the pressing of the button switches. Provided is a shell program stored in a memory of the system host, for displaying a program selection menu window on the computer monitor when the key scan code data is received by the system host, for executing an application program by the command produced in the computer system. The invention provides an effective user interface since selecting, executing, and ending of a desired application program are possible in a more convenient manner through operation of the control panel. Further, registration of a new program menu item as well as the editing and deleting of the registered program menu are possible through the mouse operation.