Memory and Storage
Computer memory / storage can be classified in three ways; primary, secondary and off-line.
Primary memory is the computer’s main memory, which is directly accessible by the CPU and often much faster than secondary storage.
Examples of primary memory / storage:
Secondary storage is a non-volatile medium that holds data until it is deleted or overwritten.
It is sometimes referred to as external memory and auxiliary storage. Secondary storage is where programs and data are kept on a long-term basis.
Examples of secondary memory / storage:
Off-line refers to non-volatile storage that can be easily removed from the computer. This is often used to transport data and keep backups for protection.
Examples of off-line memory / storage: