Some embodiments of the invention provide vias that are not in shape of quadrilaterals. The recording device comprising a nonvolatile memory that stores data, a communication unit that receives an instruction issued by the access device, and a memory controller that controls the nonvolatile memory. The switch includes a port card connected to the fabrics and the network for receiving packets from and sending packets to the network. The operational method of the wind machine array includes the steps of sensing ambient meteorological and the hardiness of the crop to withstand a particular adverse weather condition and operating the wind machines in response to these factors. Two end faces of the second ferromagnetic layer come into contact with the third ferromagnetic layers.