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Secondary Memory-: is long term storage device which uses the help of input and output channels to access information.The content in it must first be copied into the primary storage (RAM) for CPU to process . It does not lose the data when device is powered off .It is nonvolatile.

Eg: Hard Disk(HD),Floppy ,CD.Its Ram-random access memory to the device 3.5 &5.7 .

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12y ago

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