COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

OPERATING SYSTEMS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What system loads first when booting a PC?

A	BIOS
B	Word processor
C	Operating system
D	Firmware

Explanation:

Detailed explanation-1: -The BIOS will try to boot from the CD drive first, and if that fails, then it will try to boot from the hard disk drive, and if that fails, then it will try to boot from the network, and if that fails, then it won’t boot at all.

Detailed explanation-2: -The first thing a computer has to do when it is turned on is start up a special program called an operating system. The operating system’s job is to help other computer programs to work by handling the messy details of controlling the computer’s hardware.

Detailed explanation-3: -A computer’s basic input/output system (BIOS) is a program that’s stored in nonvolatile memory such as read-only memory (ROM) or flash memory, making it firmware. The BIOS (sometimes called ROM BIOS) is always the first program that executes when a computer is powered up.

Detailed explanation-4: -The Startup. It is the first step that involves switching the power ON. BIOS: Power On Self Test. It is an initial test performed by the BIOS. Loading of OS. System Configuration. Loading System Utilities. User Authentication.

There is 1 question to complete.