COMPUTER SOFTWARE
SYSTEM SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the first thing that happens when a computer is switched on
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Try and find and load the operating system
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Instructions perform some basic hardware tests
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Process of loading the operating system is called booting the computer
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Computer looks for instructions to follow (on ROM)
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Explanation:
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. For example, it will look for the RAM. The BIOS then starts the boot sequence.
Detailed explanation-2: -Operating system is the first program that loads in computer’s main memory when a computer is switched on.
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