A memory cell is included which has a selection transistor and a variable resistance device connected to a bit line through the selection transistor. The system controller is operative to provide heated or cooled water to the heat exchangers even though current heating or cooling demands may not be sufficient to require the provision of heated or cooled water to the heat exchangers. The application program invokes an instruction that returns a parameter block that includes the information. Further, the cable jacket is tightly drawn onto the optical fiber, where excess fiber length of the optical fiber is such that positive strain is present in the optical fiber at room temperature. Furthermore, a Luma_mode has also been used in intra prediction of chroma component to further improve the performance in the High Efficiency Video Coding standard being developed. This current buffer allows a significant reduction in the maximum internal and external compensation capacitances needed for regulator stability.