Question

Difference between Primary Memory and secondary memory?​

Answer 1

HeLo

Answer
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♻️PRIMARY MEMORY♻️

⭕️Primary memory is also known as Main memory or Internal memory

⭕️In primary memory, data is directly accessed by the processing unit.

⭕️Semi conductor chips are used to store information in primary memory.

⭕️Information stored is temporary and it can be lost when there is a sudden power cut.

⭕️Data operated and stored in uniform manner.

⭕️Primary memory devices are more expensive than secondary storage devices.

⭕️Nature of Parts of Primary memory varies. RAM- volatile in nature. ROM- Non-volatile

⭕️It is very fast in interacting with micro processor.

⭕️Primary memory has limited storage capacity.

⭕️Examples: RAM, ROM, Cache memory, PROM, EPROM, Registers etc

♻️SECONDARY MEMORY♻️

⭕️Secondary memory is also known as External memory or Auxiliary memory

⭕️In secondary memory, data is first transferred to main memory and then routed to processing unit.

⭕️Magnetic disk, optical disks are used to store information in secondary memory.

⭕️Information stored is permanent unless one deletes it intentionally.

⭕️Data stored is not uniform in secondary memory.

⭕️Secondary memory devices are less expensive when compare to primary memory devices.

⭕️It’s always Non-volatile in nature.

⭕️It is little slow in interacting with micro processor.

⭕️Whereas secondary memory can store bulk amounts of data in a single unit.

⭕️Examples: Magnetic Tapes, Optical Disc, Floppy Disks, Flash memory [USB drives], Paper Tape, Punched cards etc

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Answer 2

primary memory is called RAM

random access memory

it is volatile in nature

storing capacity is less

temporary file stored in ram

also called storage device

secondary device

hard disk

non volatile in nature

storage capacity is large

store old file too

permanant file stored in hard disk