What is another word for read only memory?
Pronunciation: [ɹˈiːd ˈə͡ʊnli mˈɛməɹˌi] (IPA) 
Read Only Memory, or ROM, is a type of computer memory that stores data permanently and cannot be altered. There are various synonyms for ROM such as firmware, non-volatile memory, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM) and electrically erasable programmable read-only memory (EEPROM). These forms of memory retain their data even after the power is turned off. PROM memory is programmed once and cannot be changed, while EPROM memory can be erased by exposing it to ultraviolet light. EEPROM memory is a type of memory that can be erased and reprogrammed electronically. ROM is commonly used to store system startup instructions and permanent data for electronic devices.
