Question

As the storage capacity of the main memory is inadequate, which memory is used to enhance it?

(a) Secondary Memory

(b) Auxiliary Memory

(c) Static Memory

(d) Both Secondary Memory and Auxiliary Memory

This question was addressed to me in an interview for internship.

This intriguing question comes from Introduction of Memory Devices in chapter Memory Devices of Digital Circuits

Answer 1

Right option is (d) Both Secondary Memory and Auxiliary Memory

To explain I would say: As the storage capacity of the main memory is inadequate, Secondary memory is used to enhance it and it is also known as auxiliary memory. Secondary memory is also known as Registers/Main Memory. In secondary memory, data is usually stored for a long-term.