Answer the following questions:
- Define the secondary storage of a computer system with examples.
Ans:- The media which stores data and programs for a future reference are called secondary storage. It is a non volatile storage device. It is used to store a large volume of data and programs on permanent basis which can be partially transferred to the primary memory for further processing, when required. Examples: floppy disk , harddisk, CD-ROM, pen drive,etc.
- Differentiate between primary and secondary memory.
Ans:- The differences between primary and secondary memory are:-
|Primary memory||Secondary memory|
|i) It is known as main memory.||i)It is known as additional or backup memory.|
|ii) These memories are also called as internal memory.||ii) These memories are also called external memory.|
|iii) It is categorized as volatile and non volatile memories.||iii) It is always categorized as non volatile memories.|
|iv)These memories are more effective and fast to interact with the micro-processor.||iv) These memories are some what slow in interacting with the micro-processor.|