Security device for portable computer and method thereof

A security method for a portable computer comprising the steps of:

• receiving a paged information;
• determining the type of paged information received after sensing the presence of a power supply and generating a corresponding interrupt signal according a result of the determined type of paged information;
• and
• controlling operating status of the portable computer according to a type of interrupt signal to prevent the access of the portable computer, wherein the controlling step comprises the steps of:
• turning off power supply after changing a system password stored in a backup memory to a new password by operating a password change handler, in presence of a password interrupt signal;
• stopping system operations after displaying a paged message on a liquid crystal display by operating a message display handler, in presence of a message interrupt signal;
• and
• displaying a paged telephone number on the liquid crystal display by operating a telephone display handler, in presence of a pager interrupt signal.

A security method for a portable computer comprising the steps of:

• receiving a paged information;
• determining the type of paged information received and generating a corresponding interrupt signal according a result of determined type of paged information;
• and
• controlling an operating status of the portable computer by stopping a program in use in presence of the interrupt signal and by preventing further access of the portable computer according to a type of interrupt signal, wherein the controlling step comprises the steps of:
• turning off power supply after stopping the program in use, and after changing a system password stored in a backup memory to a new password by operating a password change handler, in presence of a password interrupt signal;
• stopping system operations after displaying a paged message on a liquid crystal display by operating a message display handler, in presence of a message interrupt signal;
• and
• displaying a paged telephone number on the liquid crystal display by operating a telephone display handler, in presence of a pager interrupt signal.