Why do we need Secondary Memory?

Secondary memory is needed because of the following reasons:

1. For permanence: As the RAM is volatile, i.e. it loses all information when the electricity is turned off, something is needed for permanence. Secondary storage devices serve this purpose. They do not lose data when electricity is turned off.

2. For portability: Secondary storage, like the CDs, flash drives can be used to transport data from one computer to another.

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