Explain secondary memory. Give some examples of secondary memory.

1.	Explain secondary memory. Give some examples of secondary memory.
Answer» It is also known as Secondary Storage or Auxiliary Memory. It is slower and cheaper form of memory, which is a permanent storage device. CPU does not access the secondary memory directly. The contents in it must be first copied into the RAM to get processed. It is non-volatile in nature, i.e. the information does not get erased even power gets switched OFF and data will not be destructed until and unless, the user erases it. Secondary memory devices include (a) Magnetic disks 1. Floppy Disk 2. Hard Disk Drive 3. Magnetic Tape (b) Optical discs 1. CD 2. DVD 3. Blu-ray Disc (c) Solid State 1. Pen/Flash Drive 2. Memory Card

Answer»

It is also known as Secondary Storage or Auxiliary Memory. It is slower and cheaper form of memory, which is a permanent storage device. CPU does not access the secondary memory directly. The contents in it must be first copied into the RAM to get processed.

It is non-volatile in nature, i.e. the information does not get erased even power gets switched OFF and data will not be destructed until and unless, the user erases it.

Secondary memory devices include

(a) Magnetic disks

1. Floppy Disk

2. Hard Disk Drive

3. Magnetic Tape

(b) Optical discs

1. CD

2. DVD

3. Blu-ray Disc

(c) Solid State

1. Pen/Flash Drive

2. Memory Card

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