An automatic security code verifying method of a computer system operated by a remote controller

A computer system includes a remote controller for generating a remote control signal to remotely control operations of the system, a remote control signal receiver for receiving the remote control signal generated from the remote controller, and a shell program for executing various remote control operations by the remote controller. If a security code verification operation is performed when the computer system returns from a stand-by state to a normal state by the remote controller, the shell program serves to automatically input a security code transmitted from the remote controller. This makes it possible to automatically input a security code that a user must directly input using an input device such as a keyboard, when the computer system returns to the normal state. Therefore, user convenience can be enhanced.