Monday, August 9, 2010

Secondary storage

Hardware that keeps data inside the computer for later use and remains persistent even when the computer has no power.

Hard disk - for medium-term storage of data.
Solid-state drive - a device similar to hard disk, but containing no moving parts and stores data in a digital format.
RAID array controller - a device to manage several internal or external hard disks and optionally some peripherals in order to achieve performance or reliability improvement in what is called a RAID array.

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