COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is ‘volatile’ storage?
A
Storage which is deleted without power
B
Storage which remains in memory without power
C
Storage which cannot be changed
D
Storage which can be changed
Explanation: 

Detailed explanation-1: -RAM is volatile memory used to hold instructions and data of currently running programs. It loses integrity after loss of power. RAM memory modules are installed into slots on the computer motherboard. Read-only memory (ROM) is nonvolatile: Data stored in ROM maintains integrity after loss of power.

Detailed explanation-2: -Volatile memory is a type of memory that maintains its data only while the device is powered. If the power is interrupted for any reason, the data is lost.

Detailed explanation-3: -RAM is often referred to as volatile memory, because anything contained in RAM is considered lost when a computer is switched off. Indeed, all data is lost from RAM when the power supply is disconnected; so it is volatile in this context.

Detailed explanation-4: -There are two kinds of volatile RAM: dynamic and static. Even though both types need continuous electrical current for proper functioning, there are some important differences as well. Dynamic RAM (DRAM) is very popular due to its cost effectiveness.

Detailed explanation-5: -Volatile storage devices lose data when power is interrupted or turned off. By contrast, non-volatile devices are able to retain data regardless of the status of the power source. Common types of volatile storage include static random access memory (SRAM) and dynamic random access memory (DRAM).

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