An insulator allowing a coil to be wound with large tension exerted and a rotating electric machine having the insulator are provided. The device features a gate structure disposed on a substrate over a channel and adjacent a source and a drain. The controller issues a backup command to all of the one or more secondary storage systems when information showing a preparation end state is reported from all of the one or more secondary storage systems. The electret member may include the plurality of laterally offset portions, and the laterally offset portions may include at least one positively charged dielectric material portion and at least one negatively charged dielectric material portion. The base member is fixed to a wheel through a heat curable adhesive layer. The first means of communication may be triggered between a non-transparent operating mode and a transparent operating mode during which it is incapable of acting on data passing through it.