Abstract: A computer system is provided. The computer system includes a device which operates according to a clock frequency, a battery unit, which comprises a plurality of battery cells, for supplying power to the device, a temperature sensor provided at a location outside of the battery unit for detecting a temperature of the battery cells, a current sensor coupled to the battery unit for detecting a value of a current supplied from the battery unit to the device, and a controller, which is coupled to the temperature sensor and the current sensor, configured to control the clock frequency of the device according to the detected temperature and the detected current value, wherein the controller is configured to decrease the clock frequency if the detected temperature is greater than a first reference value or if the detected current value is greater than a second reference value.

Abstract: A computer system includes a device which operates depending on a clock frequency; a battery unit which comprises a plurality of battery cells and supplies power to the device; a temperature sensor which senses temperature of the battery cells; and a controller which decreases the clock frequency if the sensed temperature is beyond a first preset critical point.

Abstract: A computer system includes a device which operates depending on a clock frequency; a battery unit which comprises a plurality of battery cells and supplies power to the device; a temperature sensor which senses temperature of the battery cells; and a controller which decreases the clock frequency if the sensed temperature is beyond a first preset critical point.

Abstract: A display apparatus processing a video signal from a main body to display a picture, including a USB hub with at least one LCD USB port having a power pin through which a USB driving power is supplied from at least one USB port provided in the main body. With this configuration, a display apparatus and a method of supplying power to a USB device thereof are provided, in which power from a main body is supplied to the USB device attached to the USB hub of the display apparatus regardless of a power saving mode (the S3 mode of the ACPI).

Abstract: An apparatus and a method for connecting peripheral devices to each other in a computer supporting IEEE1394 are provided. An apparatus for connecting peripheral devices in a computer supporting IEEE1394 according to the present invention for connecting internal 1394 peripheral devices connected to 1394 physical layer ports in the computer supporting the IEEE1394 includes a controller for generating a control signal for selecting either the computer or the 1394 peripheral device using apparatus, external 1394 ports connected to 1394 connectors of the 1394 peripheral device using apparatus, and a switching unit for selectively connecting the internal 1394 peripheral devices to either the 1394 physical layer ports or the external 1394 ports in response to the control signal.