nvram

from The Free On-line Dictionary of Computing (8 July 2008)

Non-Volatile Random Access Memory
NVRAM

   <storage> (NVRAM) {Static random-access memory} which is made
   into {non-volatile storage} either by having a battery
   permanently connected or by saving its contents to {EEPROM}
   before turning the power off and reloading it when power is
   restored.

   (1995-04-22)