In one form, a data containing portion of the memory is referred to as {TAIL ~ random access memory} , while an instruction containing portion of {HEAD ~ the memory} (also called permanent memory is referred to as read only memory  
In one form , a data containing portion of the memory is referred to as { TAIL ~ random access memory } , while an instruction containing portion of { HEAD ~ the memory } ( also called permanent memory is referred to as read only memory
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH