What is the function of a memory stick (pen drive) in terms of storage? MCQ with Answer and Explanation

Explanation:
Optical discs are immune to magnetic fields and are relatively durable under normal handling, while magnetic disks can be damaged by strong magnetic fields. However, optical is slower and lower capacity.

Explanation:
Firmware (like BIOS) is stored in ROM (or flash memory) because it is non-volatile and retains data without power, and is not meant to be frequently changed.

Explanation:
PROM (Programmable ROM) can be programmed once after manufacturing, and EPROM can be reprogrammed after erasure. Both are non-volatile and programmable.