Question

Volatile memory refers to __________

(a) The memory whose loosed data is achieved again when power to the memory circuit is removed

(b) The memory which looses data when power to the memory circuit is removed

(c) The memory which looses data when power to the memory circuit is applied

(d) The memory whose loosed data is achieved again when power to the memory circuit is applied

I had been asked this question during an online exam.

My question comes from Introduction of Memory Devices topic in portion Memory Devices of Digital Circuits

Answer 1

Right answer is (b) The memory which looses data when power to the memory circuit is removed

To explain I would say: Volatile means ‘liable to change rapidly’ and volatile memory refers to the memory which looses data rapidly when power to the memory circuit is removed. Thus, it looks after it’s data as long as it is powered. Non-volatile means ‘not volatile’ and non-volatile memory refers to the memory which retains the data even if there is a break in the power supply.