Operating System (OS) and Graphical User Interface (GUI): Role and Functions — Flashcards
ICSE · Class 8 · Computer Studies
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What is an operating system?
Answer
An operating system is an integrated set of programs that manages various resources and the overall operations of a computer. It works like a manager that controls the computer and helps it function s…
Why is an operating system needed in a computer?
Answer
An operating system is needed to act as an interface between the user and the computer. It helps the computer run smoothly, manages memory, controls connected devices, coordinates hardware and softwar…
What is booting?
Answer
Booting is the process of loading the operating system into the main memory. It begins when the computer is switched on and prepares the computer for use.
What are the two types of booting?
Answer
The two types of booting are cold booting and warm booting. Cold booting starts when the computer is switched on. Warm booting happens when the computer is restarted without switching off the power.
What happens during cold booting?
Answer
Cold booting is the startup procedure of a computer. The computer is switched on, the operating system loads, and peripheral devices are checked to see whether they are working properly.
What happens during warm booting?
Answer
Warm booting is restarting the computer under software control without switching off the power. It can be done using the Restart button or the Control-Alt-Delete keys. The routine checkup of periphera…
What are BIOS and POST in booting?
Answer
BIOS or ROM-BIOS starts working at the time of booting. POST means Power-On-Self-Test and checks whether all components are working properly during booting.
What is Character User Interface?
Answer
Character User Interface is an interface in which the user and the computer interact using text commands. Keyboard is used for input and the screen shows output. It is also called Command Line Interfa…
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