A separate power supply which may be a charged capacitor is used to power the memory and memory lock circuits in case of a power interruption in {HEAD ~ the main system} with which the memory is being used, so that volatile data can be stored for re use by {TAIL ~ the main system} after the main power is restored 
A separate power supply which may be a charged capacitor is used to power the memory and memory lock circuits in case of a power interruption in { HEAD ~ the main system } with which the memory is being used , so that volatile data can be stored for re use by { TAIL ~ the main system } after the main power is restored
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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