When compared to different types of ROM and RAM, it is slower. (Image will be uploaded soon) Use for Data Storage Because ROM full form in the computer (at least in hard-wired mask form ) cannot be edited, it's only good for storing data that won't need to be changed throughout the device's lifetime. ROM stands for Read Only Memory, a storage medium that can be read but not modified. Learn about the types of ROM (MROM, PROM, EPROM, EEPROM and Flash Memory), their benefits and limitations, and how they are used in systems and devices. ROM is sometimes called mask ROM or MROM, a form of read-only memory that's static and programmed into integrated circuits by the manufacturer. Solid-state ROM , the oldest type of ROM , is an example of mask ROM . Learn what is ROM , a type of computer memory that stores data permanently and cannot be changed or erased. Find out the history, types, advantages, disadvantages, and uses of ROM in various devices and systems.