MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The CPU starts and fetches instructions into RAM from the BIOS, which is stored in the ROM. The BIOS starts the monitor and keyboard, and does some basic checks to make sure the computer is working properly.

Detailed explanation-2: -BIOS (basic input/output system) is the program a computer’s microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer’s operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.

Detailed explanation-3: -When your computer has completed the startup sequence, the BIOS passes control to the operating system. Operating systems control the computer’s resources, software, and hardware. Examples of common operating systems are Windows 10, macOS, Linux, Android, and iOS.

Detailed explanation-4: -What is BIOS? As your PC’s most important startup program, BIOS, or Basic Input/Output System, is the built-in core processor software responsible for booting up your system. Typically embedded into your computer as a motherboard chip, the BIOS functions as a catalyst for PC functionality action.