MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -It’s used to store the start-up instructions for a computer, also known as firmware. Most modern computers use flash-based ROM. It is part of the BIOS chip, which is located on the motherboard.

Detailed explanation-2: -The CMOS is a physical part of the motherboard: it is a memory chip that houses setting configurations and is powered by the onboard battery. The CMOS is reset and loses all custom settings in case the battery runs out of energy, Additionally, the system clock resets when the CMOS loses power.

Detailed explanation-3: -ROM also performs large input/output (I/O) tasks and protects programs or software instructions. Once data is written on a ROM chip, it cannot be removed. Almost every computer incorporates a small amount of ROM that contains the start-up firmware. This boot firmware is called the basic input/output system (BIOS).

Detailed explanation-4: -What is CMOS? Complementary metal-oxide-semiconductor (CMOS) is a small amount of memory on a computer motherboard that stores the Basic Input/Output System (BIOS) settings. The BIOS is the software stored on the memory chip on the motherboard.