{TAIL ~ A memory bus} 408 may be used for communicating between {HEAD ~ processor} 404 and system memory 406 
{ TAIL ~ A memory bus } 408 may be used for communicating between { HEAD ~ processor } 404 and system memory 406
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH