A video image pickup and display are used to provide electronic viewfinders for cameras. A transmit pulse is generated by the radar system. With this invention, the strands are fluffed up, not directly in the muffler, but in a cavity that is made of a perforated shell matching the muffler shape. When the parallel processing device has performed the tasks mapped to the execution threads of the parallel processing device for the predetermined number of execution cycles, the parallel processing device is suspended from further performing the tasks to allow the parallel processing device to determine which execution threads have completed performance of mapped tasks and are therefore free. Pivoting and tilting is accommodated by the gooseneck mount. In this way, a concentration gradient of N-type ions can be reduced at the bit line contact window, and further a PN junction leakage current can be reduced, thus lowing the power consumption of the DRAM when the DRAM is used for a low power consumption product.