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Computer Applications

Differentiate between Primary and Secondary memory.

Computer System

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Primary MemorySecondary Memory
It is the main memory of the computer system.It is the auxiliary memory from where stored data can be retrieved.
Data and instructions get erased as soon as the computer is switched off.Data or instructions are stored for future use, even when the computer has been switched off.
It provides faster data access.It provides slower data access.
It is used for processing data.It is used for storing large amounts of data permanently.
It is small in size.It is of large size.
It is also called main memory or internal memory.It is also called auxiliary memory or external memory.
Examples are RAM and ROM.Examples are hard disk, CD, DVD, flash drive etc.

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