CBSE Class-X Information Technology-Solution Unit-III (Session- 1, Ch-8):

Unit-III Information and Communication Technology Skills-II

Chapter-8 Operating System

I. Multiple Choice Questions. Tick the correct answer.

1. Which of these is a GUI-based operating system?

a. Windows            b. UNIX                    c. MS Word                d. None of these

Answer: Windows

2. Which of these is an operating system with a character user interface?

a. MS -Windows    b. Mac OS                c. UNIX                        d. None of these

Answer: UNIX

3. Which of these is not a system icon that is found on the desktop?

a. Paint icon            b. computer icon    c. Recycle bin icon    d. Network icon

Answer: Paint icon

4. Which is not a part of the taskbar?

a. Start button        b. Middle section     c. Notification area   d. Cascade windows

Answer: Cascade windows

5. Which program is designed to store files that you delete from your computer?

a. Computer            b. My documents    c. Network                    d. Recycle bin

Answer: Recycle bin

II. Fill in the blanks:

1. A program that is running on a computer is called a ____________.

Answer: Operating system

2. The ___ is the main software of a computer that controls its internal working.

Answer: Operating System

3. Android is a ____ based open source operating system developed by Google Inc.

Answer: Linux

4. Windows 7 provides a _______ user interface to work on the computer.

Answer: Re-designed

5. The main screen of the windows which helps us to access the computer resources is called the ____ screen.

Answer: Desktop

III. Short Answer Questions:

1. What is an operating system?

Answer: The operating system is the main software that controls the internal working of the computer.

2. What is desktop?

Answer: Desktop is the main screen that opens when a computer is switched on.

3. Name the main components of windows 7 desktop screen.

Answer: Window 7 main Parts:

*Icons

*Background

*Taskbar

*Gadgets

4. What are desktop icons?

Answer: Desktop icons are small pictures displayed on the desktop background. Different desktop icons represent files, folders, programs, gadgets, etc.

5. How will you open an icon on the desktop?

Answer: Double click on an icon to open it.