COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

SYSTEM SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why we need to have secondary storage?
A
Store large volume of data that exceed the capacity of main memory
B
Perform arithmatic and logical operations
C
To give power to the system too
D
To help processor in processing
Explanation: 

Detailed explanation-1: -Moving infrequently used data to secondary storage immediately lowers costs since secondary storage comes in higher capacities and is less expensive than primary storage. This is important if you are using secondary storage for backup purposes which requires having large amounts of storage capacity for duplicated data.

Detailed explanation-2: -Secondary storage is needed to keep programs and data long term. Secondary storage is non-volatile, long-term storage. Without secondary storage all programs and data would be lost the moment the computer is switched off.

Detailed explanation-3: -Aside from offering greater data retention, secondary storage is usually twice as cheap compared to its primary counterpart. It can also store significantly more information. An 8GB stick of RAM is a decent size, while new computers generally have 1TB hard drives. There is no comparison on capacity.

Detailed explanation-4: -Secondary memory is capable of storing high volume data. These memories are non-volatile and persistent in nature and are not directly accessed by a computer/processor. These types of memories are slower than primary memory. However, it can save a large amount of data, in the range of gigabytes(GB) to terabytes(TB).

There is 1 question to complete.