Patent ID: 8176344

Claim:
An information processing apparatus that is provided with a volatile first storage unit and a nonvolatile second storage unit and that has a normal operating mode and a power saving mode in which power consumption is reduced relative to the normal operating mode, comprising: a storing unit configured to, when the operating mode transitions from the normal operating mode to the power saving mode, store a portion of data stored in the second storage unit in an image area of the first storage unit, the image area being used in the normal operating mode; a power control unit configured to, when the operating mode transitions from the normal operating mode to the power saving mode, reduce power supply to the second storage unit; and a recognition unit configured to cause an operating system of the information processing apparatus to recognize a storage area of the first storage unit in which the portion of data is stored as a storage unit replacing the second storage unit, wherein the portion of data is data in a swap storage area of the second storage unit, and the recognition unit causes the operating system to recognize, when the operating mode transitions from the normal operating mode to the power saving mode, the storage area of the first storage unit in which the portion of data is stored as the swap storage area of the second storage unit, wherein, the image area is for storing image data and page description language data that is not directly used by the operating system, wherein, when the operating mode again transitions to the power saving mode after having returned from the power saving mode to the normal operating mode, the storing unit only stores data modified while in the normal operating mode in the second storage unit, out of the portion of data stored in the first storage unit when the operating mode previously transitioned to the power saving mode.