PC Basics
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PC Basics
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Storage is similar to memory in that both are used to retain information. Storage devices use magnetic or optical means to retain data where memory uses an electronic circuit. Storage is non-volatile, which means it does not lose the information when powered off. Storage devices have much greater capacity in comparison to memory but move data at much slower speeds than memory. Hard Drives and Tapes store information magnetically. CDs and DVDs retain information optically. Storage is used on a PC to retain important information like programs (software) as well as user data files. 
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