Abstract: Provided is an information processing apparatus capable of reducing time required for a move or copy of a file. The information processing apparatus includes a resident module (72) that, when detecting a selection operation of a move source or a copy source of data from an OS (70), reads target data, and starts writing the data into a predetermined area. Then, the resident module (72), in a case in which a specification operation of a move destination or copy destination of the data is performed from the OS (70), moves the data from the predetermined area in a volume same as the move destination or copy destination of data to the move destination or copy destination of data. A data move within the same volume can be realized only by rewriting a management region of a file system, needs to perform no new write processes, and takes no additional time.

Abstract: A device controller that improves transfer speed when the total data amount to be transferred exceeds a predetermined amount, without requiring a special configuration in the device. The device controller includes a cache memory that caches data received from an application software or device driver and data received from a target device, and a control unit that transfers the data cached in the cache memory to the target device and the application software or device driver. The control unit receives a read or write request from upstream and caches the transfer data in the cache memory. During writing, the data received from upstream is cached, and once a certain amount of data has been collected, it is sent downstream. During reading, a certain amount of data is collectively read out from downstream and sent upstream.