Secondary storage
Encyclopedia : S : SE : SEC : Secondary storage
In computer storage, secondary storage, or external memory, is computer memory that is not directly accessible to the central processing unit of a computer, requiring the use of computer's input/output channels. Secondary storage is used to store data that is not in active use. Secondary storage is usually slower than primary storage, or internal memory, but also almost always has higher storage capacity and is non-volatile, preserving the stored information in an event of power loss.
Storage devices in this category include:
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