ذاكرة القراءة فقط للقرص المضغوط(A form of storage characterized by high capacity (roughly 650 MB) and the use of laser optics instead of magnetic means for reading data)
electrically erasable programmable read-only memoryA type of EPROM that can be erased with an electrical signal. It is useful for stable storage for long periods without electricity while still allowing reprogramming. EEPROMs contain less memory than RAM, take longer to reprogram, and can be reprogrammed only a limited number of times before wearing out