The invention concerns Phenolic Configurationally Locked Polyene Single Crystals, which are especially suited as highly efficient nonlinear optical organic material. When the user of a first mobile station receives a message sent from a second mobile station, the user of the first mobile station may responsively reply. Each bilayer comprises a polyanion electrolyte layer and a polycation electrolyte layer. Preferably, the dielectric layer is provided with a cylindrical insulator 33 faced thereto with a small gap kept therebetween, and the linear electrodes are formed on the peripheral surface of the cylindrical insulator. Synchronizing is performed by internal clock signals, both of which are derived from a single delay feedback loop. Each of the plurality of memory devices includes an input port, a register configured to store an ID of each memory device, and a determination circuit configured to receive and compare an ID input via the input port with the ID stored in the register and to generate a control signal according to a result of the comparison.