The invention enables random read and write operations into {TAIL ~ cells} in an array of {HEAD ~ a memory device} 
The invention enables random read and write operations into { TAIL ~ cells } in an array of { HEAD ~ a memory device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD