Patent ID: 8522058

Claim:
A computer system with power source control, comprising: a first storage unit, for storing a system program; a second storage unit for storing data; a processor, electrically connected to the first storage unit and the second storage unit, for reading and executing the system program stored in the first storage unit, so as to enable the computer system with power source control to operate based on the system program; a power supply module, for providing an electric power required by the first storage unit, the second storage unit, and the processor to operate; a switch, disposed on a power supply path between the power supply module and the second storage unit and electrically connected to the processor, for conducting or cutting off the power supply path, wherein the switch cuts off the power supply path when the second storage unit has not been accessed for a predetermined period of time; and a controller, electrically connected to the processor, for controlling the ON/OFF of the switch based on a switching signal, wherein the controller turns off the switch until the second storage unit has not been accessed for a predetermined period of time and a file allocation table (FAT) of the second storage unit has been replicated, even after receiving the switching signal for turning off the switch.