Apparatus for communicating with {TAIL ~ data systems} and a method of communicating with {HEAD ~ data systems} 
Apparatus for communicating with { TAIL ~ data systems } and a method of communicating with { HEAD ~ data systems }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD