System and method of controlling computer supporting multiple operation modes

A system and method of controlling a computer supporting multiple operation modes are proposed. The system includes a mode controller generating a combination of electric potentials and an additional microprocessor having a storage module including a mode list, a detection module and a control module. The detection module detects the combination of the electric potentials and determines a shift direction of the mode controller according thereto. The control module selects a target operation mode adjacent to the current operation mode in the mode list according to the shift direction, and checks the disparity between the current operation mode and the target operation mode to generate a control signal to direct the computer to reboot or execute an application specific to the second operation mode, and subsequently enables the computer to operate in the second operation mode. Further, the additional microprocessor embeds a watchdog monitor module to monitor an execution of an application running on the computer and protect the computer from crash due to abnormality experienced during the execution of an application.