A method of selecting a network connection for use with a data processing system includes detecting environmental information indicative of a current environment in which the system is operating, determining whether the current environment is a known environment, and, rapidly selecting a current network connection by identifying a known environment network connection. In another aspect, the invention provides a dynamic scheduling method. one-half, of the input frequency. The NAND strings on other levels are deselected. The electrophoretic layer is disposed between the first substrate and the second substrate and is controlled by an electric field formed by the first electrode and the second electrode to display an image. The vehicle driving assist system calculates operation reaction force based on the risk potential around the subject vehicle, and corrects it according to operating state of an accelerator pedal.