{TAIL ~ The receipt} and {HEAD ~ processing} of the communication packet may be acknowledged by the central controller to computer  
{ TAIL ~ The receipt } and { HEAD ~ processing } of the communication packet may be acknowledged by the central controller to computer
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH