The invention finds one particularly advantageous application in the field of electronic transactions effected by means of {TAIL ~ an electronic memory card} operable with {HEAD ~ a portable payment terminal} 
The invention finds one particularly advantageous application in the field of electronic transactions effected by means of { TAIL ~ an electronic memory card } operable with { HEAD ~ a portable payment terminal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD