Short for non-volatile random-access memory, NVRAM is a memory that saves its stored data regardless if the power is on or off. Today, a good example of NVRAM is flash memory like that used in a Jump drive. NVRAM is also in your computer monitor, printers, cars, smart cards, and other devices that require remembered settings.
Note: Your computer RAM (random access memory) is volatile, which means if you turn off your computer everything stored in the memory is lost. Although memory such as the ArxCis-NV from Viking is non-volatile RAM, it is only used with servers and not something you would be using in a home computer.
Types of NVRAM
Today, there are different types of NVRAM available for all computers. The RTC/NVRAM on your computer motherboard is a battery-backed NVRAM that uses the CMOS battery to charge and store system settings such as the date and time.
Ferroelectric RAM, FeRAM, or F-RAM and Magneto resistive RAM or MRAM are also types of NVRAM used for various applications.
Why are the advantages and disadvantages of NVRAM?
- NVRAM has no moving parts and is almost always faster than volatile memory for both reading and writing.
- With less moving parts, NVRAM requires much less power.
- NVRAM that requires a battery that will eventually need to have the battery replaced.
- As information is re-written to flash memory, it deteriorates and will eventually no longer work.