Non-volatile DRAM, as the name suggests, is a type of memory that retains its data even when there is no power. Unlike volatile memory like RAM that can lose its data when the power is turned off, non-volatile memory serves as “byte addressable” memory that allows for easy access to data and instructions.
Where is Non-Volatile DRAM Used?
Non-volatile DRAM is not typically used in everyday devices like computers, tablets, or phones’ RAM. Instead, it tends to be utilized in devices that only require minimal RAM such as sensors, industrial controls, point-of-sale terminals, and measurement equipment.
Cache Memory vs Non-Volatile DRAM
Non-volatile DRAM is incredibly fast, making it a worthy competitor for cache memory. However, it is still more expensive compared to flash storage and main memory.
Frequently Asked Questions (FAQ)
What is the main difference between non-volatile and volatile memory?
The main difference between non-volatile and volatile memory is that non-volatile memory retains data even when the power is turned off, while volatile memory needs constant power to maintain its data.
What are examples of non-volatile memories?
Examples of non-volatile memory include ROM, disk drives, flash memory, and EEPROM.
Conclusion
Non-volatile DRAM is a memory type that retains its contents without a power supply. It is often used as the primary memory in devices that require minimal RAM. As it continues to compete with cache memory, non-volatile DRAM remains more expensive than other memory types such as flash storage and main memory.
