The remote card processing unit is for modifying the information receivable on {HEAD ~ the cards} responsive to information received via {TAIL ~ the computer network} 
The remote card processing unit is for modifying the information receivable on { HEAD ~ the cards } responsive to information received via { TAIL ~ the computer network }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL