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