COMPUTER FUNDAMENTALS

INPUTOUTPUT AND STORAGE DEVICES

STORAGE DEVICES HARD DISK SSD AND FLASH MEMORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do computers have secondary storage
A
Primary Storage might be full
B
To give another option where to save files
C
Main memory is volatile
D
None of the above
Explanation: 

Detailed explanation-1: -Volatile memory is used for a computer’s RAM because it is much faster to read from and write to than today’s nonvolatile memory devices. Even the latest storage class memory (SCM) devices such as Intel Optane can’t match the performance of the current RAM modules, especially the processor cache.

Detailed explanation-2: -Primary Memory is called volatile memory, because when power is switched off it loses all data. Primary memory is generally of two types. RAM (Random Access Memory) − It stands for Random Access Memory.

Detailed explanation-3: -Computer memory is divided into main (or primary) memory and auxiliary (or secondary) memory. Main memory holds instructions and data when a program is executing, while auxiliary memory holds data and programs not currently in use and provides long-term storage.

Detailed explanation-4: -Secondary storage is needed to keep programs and data indefinitely. Secondary storage is non-volatile, long-term storage. It is used to keep programs and data indefinitely. Without secondary storage all programs and data would be lost the moment the computer is switched off.

There is 1 question to complete.