Non-Volatile Memory (ROM)

Non-volatile memory (NVM) is a type of memory that retains its data even when power is removed. Non-volatile memory is commonly used in electronic devices to store important data, such as the operating system, device settings, and user data. There are several types of non-volatile memory, including ROM (read-only memory), EEPROM (electrically erasable programmable read-only memory), and flash memory. Each type of non-volatile memory has its own characteristics and is used in different applications. ROM is a type of non-volatile memory that is hard-wired to contain a specific set of data and cannot be altered or rewritten. ROM is often used to store the basic instructions that are needed to start up a device, such as the BIOS in a computer. EEPROM is a type of non-volatile memory that can be electronically erased and reprogrammed. EEPROM is commonly used in applications where the data stored in the memory needs to be updated or changed frequently. Flash memory is a type of non-volatile memory that can be easily erased and reprogrammed in large blocks. Flash memory is widely used in consumer electronics, such as USB drives and memory cards, because of its high-capacity and low-cost.