Question

Why is secondary ( auxiliary) memory required in computer

Answer 1

Primary memory (RAM) is violate and it loses it's information if power is switched off. Therefore there is a need for a non-violate memory that can store data until the user has no need of it and information remains safe even when the power is switched off. eg: Blu-ray disks, flash drives etc.

Answer 2

- : secondary ( auxiliary) memory : -

This is large as well as nonvolatile in nature. This type of memory is also known as external memory or non-volatile. It is slower than main memory. These are used for storing Data/Information permanently. CPU directly does not access these memories, instead they are accessed via input-output routines. Contents of secondary memories are first transferred to main memory and then CPU can access it. For example, disk, CD-ROM, DVD, etc.

Characteristics of Secondary Memory:-

•It is known as backup memory.

•It is non-volatile memory.

•Data is permanently stored even if power is switched off.

•It is used for storage of the data in the computer.

•Computer may run without secondary memory.

•Slower than primary memories.

•These are magnetic and optical memories.

Thank You ❤

#N∅1rPerfect