A system and method selectively reads radio frequency identification tags within an RFID interrogation zone. A data storage circuit is connected to the bit lines and stores write data. The Al2O3 matrix forms a coherent network that makes up 20 to 85 vol. A function setting picture calling device calls a function setting picture corresponding to the function name selected and entered by the user. An overall confidence level is established based at least in part on a combination of the individual confidence levels.