NVRAM
Powerless memory retention
NVRAM stands for non-volatile random-access memory—computer memory that retains stored data even when power is removed.
Unlike regular RAM, which loses everything when you shut down, NVRAM preserves settings like system clock, boot configuration, and hardware preferences: The BIOS settings are stored in NVRAM.
Common in firmware, routers, and embedded systems.
Semiconductor logic architecture
- motherboardComputer's primary circuit platform
- chipsetCoordinated circuit collection
- batteryPortable electricity storage
- jumperPullover or pinafore dress
chip · module · socket · integrated circuit · semiconductor · memory chip · silicon
Keep possession of
- preserveProtect from loss
- nonvolatileResistant to evaporation
- stateCondition or mode
- saveProtect from loss
maintain · stored · unpowered · data retention · non-volatile · data integrity
Startup hardware verification
- BIOSBoot-up initialization firmware
- UEFIFirmware interface for booting
- bootloaderInitial startup program
- initializationPreparing system for operation
startup · boot sequence · self-test · cold boot · system restore · factory reset
Adjustable device parameters
- parametersDefined boundaries or constraints
- optionsAvailable courses of action
- preferencesFavored options among alternatives
- passwordAuthentication string
Dedicated computing within devices
- gaming consolesElectronic entertainment hardware
- set-top boxesTelevision signal converters
- medical devicesTools for patient care
- avionicsAircraft electronic equipment
Erasable non-volatile semiconductor storage
- solid-stateUsing semiconductors, not tubes
- enduranceSustained effort capacity
- read-writeAllows data modification
- memory cellAntibody-producing cell with recall
CMOS
Semiconductor logic architecture
- motherboardComputer's primary circuit platform
- chipsetCoordinated circuit collection
- batteryPortable electricity storage
jumper · chip · module · socket · integrated circuit · semiconductor · memory chip · silicon
retain
Keep possession of
- preserveProtect from loss
- nonvolatileResistant to evaporation
- stateCondition or mode
save · maintain · stored · unpowered · data retention · non-volatile · data integrity
POST
Startup hardware verification
- BIOSBoot-up initialization firmware
- UEFIFirmware interface for booting
- bootloaderInitial startup program
initialization · startup · boot sequence · self-test · cold boot · system restore · factory reset
settings
Adjustable device parameters
- parametersDefined boundaries or constraints
- optionsAvailable courses of action
- preferencesFavored options among alternatives
embedded systems
Dedicated computing within devices
- gaming consolesElectronic entertainment hardware
- set-top boxesTelevision signal converters
- medical devicesTools for patient care
flash memory
Erasable non-volatile semiconductor storage
- solid-stateUsing semiconductors, not tubes
- enduranceSustained effort capacity
- read-writeAllows data modification
update
New version or information
- reflashRewrite embedded software
- corruptionDishonest abuse of power
- recoveryRegaining what was lost
NVRAMvolatile memory
Storage requiring constant power
DRAM · SRAM · main memory · working memory · cache memory