Cache memory is a memory that is used by CPU so that the average time to access the memory is reduced. It is a smaller and faster memory that stores copies of data which is used in frequently...
Computing memory that retains data in the absence of a power supply i.e. it is non-volatile memory.
Answer.
A computer chip with a read-only memory that retains its data when the power is turned off...
Well, flash memory, is not permanet...... Unless you make it. So if something is saved to flash mem, and your battery dies, Its GONE!!! Virtual, Makes it a hard copy that only erases if you tell it...