Abstract: The information retrieval system of the present invention comprises: transmitting means for outputting image information and image identification information indicative of the kind of the image information; display means for displaying an image based on the image information; position specifying means for specifying an arbitrary position in the image displayed on the display means and for outputting position information based on the specified position; and data holding means for holding, based on the position information and the image identification information, data associated with the image specified by the position specifying means; and the data associated with the image specified by the position specifying means is displayed on the display means.

Abstract: To provide a power control apparatus for reducing power, wherein the user can specify a time interval to stop driving a system, such as a computer system, there are provided a system-state detecting unit for detecting the drive state of the system, measuring unit for measuring a drive-stop designation time period Toff from the time when the system finishes processing to the time when the user designates drive-stop for the system, and for measuring a drive-start designation time period Tcont from the time when the system finishes processing to the time when the user designates drive-start for the system after the system is automatically stopped, a power-off-time determining unit for determining the automatic-drive-stop time period from the time when the system finishes processing to the time when the drive automatically stopped, according to the drive-stop designation time period, a time reporting unit for measuring the idling time from the time when the system finishes processing to the time when processing i