In the IC card system according to this invention, an IC card identifies the validity of the external device and the card per se, by {HEAD ~ connection} to {TAIL ~ the external device} 
In the IC card system according to this invention , an IC card identifies the validity of the external device and the card per se , by { HEAD ~ connection } to { TAIL ~ the external device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL