Non-volatile random access memory (NVRAM) definition
Non-volatile random access memory (NVRAM) means a type of memory that retains its contents even when power to the on-board control unit is interrupted (e.g., battery disconnected, fuse to control unit removed). NVRAM is typically made non-volatile either by use of a back-up battery within the control unit or through the use of an electrically erasable and programmable read-only memory (EEPROM) chip.