COMPUTER FUNDAMENTALS

COMPUTER ARCHITECTURE

MEMORY SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is there a need for secondary storage in a computer?
A
To store files for a long period of time, such as the operating system
B
To hold cd’s and dvd’s
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Secondary storage provides a lower-cost, higher-capacity storage tier than primary storage, although the stored data might not be as immediately accessible. This tradeoff is worthwhile in some cases, such as when implementing a backup disk appliance or cloud-based backup service.

Detailed explanation-2: -Unlike primary storage, which loses data when there is no power source, secondary storage is nonvolatile i.e. does not require power to retain stored data and can be used as a permanent method of storing, archiving, and backing up data.

Detailed explanation-3: -This boot loader then copies (loads) the operating system from secondary storage into primary memory so it can be run. Eventually, the operating system and start-up programs are loaded into primary memory and the computer becomes usable.

Detailed explanation-4: -Secondary storage is required to store programs and data over an extended period. Secondary storage is non-volatile, long-term storage. When a computer is shut off without additional storage, all apps and data are lost.

There is 1 question to complete.