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