MICROPROCESSOR AND MICROCONTROLLER

COMPUTER SYSTEMS

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which requires power to retain its data?
A
non-volatile memory
B
volatile memory
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Volatile memory (like SRAM and DRAM) requires power to maintain data, while non-volatile memory (like NAND Flash and NOR Flash) does not require power to retain data. Because of the differences between DRAM and SRAM, DRAM is better suited for main memory and SRAM is better suited for processor cache.

Detailed explanation-2: -In general, volatile memory needs power to maintain the stored information. In contrast, the stored information is retained in nonvolatile memory when the power supply is turned off.

Detailed explanation-3: -Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents while powered on but when the power is interrupted, the stored data is quickly lost. Volatile memory has several uses including as primary storage.

Detailed explanation-4: -RAM is considered volatile memory, which means that the stored information is lost when there is no power. So, RAM is used by the central processing unit (CPU) when a computer is running to store information that it needs to be used very quickly, but it does not store any information permanently.

There is 1 question to complete.