Computer Science - Practice Set for Class 2

Chapter 1 - Computers Around Us:

Fill in the blanks.

1.      A computer is an _____________machine.

2.      A computer which is kept on the desk is called a ___________ computer.

3.      A computer helps you to ____________

4.      A computer which looks like a briefcase  is a _____________

5.      A computer helps you to watch _____________

6.      A _____________ can also work on a battery.

7.      A computer does not make _____________

8.      A ____________ computer is a mobile like computer

9.      Computer is very _________ in doing calculations.

Tick the correct and cross the wrong ones.

1.      Laptop is bigger in size than a PC

2.      A computer has no feelings

3.      A computer does not help you to draw

4.      A smartphone is a mobile phone.

5.      A desktop computer looks like a briefcase.

Answer the following questions.

1.      What is a computer?

2.      Which computer do you have in your School Lab?

3.      Name two activities that you like to do most on computers.

4.      Write three differences between a computer and a human being.

 Answers of Fill in the blanks: electronic, desktop, draw, laptop, cartoons, laptop, mistakes, tablet, fast.

Chapter 2 – Parts of a Computer:

Fill in the blanks.

1.      A _______ is a pointing device.

2.      ________ prints your work on a paper.

3.      ________ is the brain of a computer.

4.      ________ helps you to listen to music.

5.      M__N_____OR looks like a TV Screen.

6.      M________SE is a pointing device.

7.      ____P____ keeps the computer on when the electricity goes off.

8.      C____U thinks for the computer.

Tick the correct and cross the wrong ones.

1.      Mouse helps you to type letters.

2.      CD is put inside a CD drive.

3.      UPS is the brain of the computer.

4.      Monitor looks like a TV screen.

5.      Keyboard has no number keys.

Answer the following questions.

1.      Name the device used to take printouts.

2.      Name the device which thinks for the computer.

3.      Name the pointing device which shows the arrow on the screen.

Answers of Fill in the blanks: mouse, printer, CPU, headphone, monitor, mouse, UPS, CPU.

Chapter 3 – Keyboard:

Fill in the blanks.

1.      A cursor looks like ______________

2.      _____________ Key takes the cursor to the next line.

3.      A, B, C, D …. Are _________________ keys.

4.      _____________ is the longest key on the keyboard.

5.       There are __________ number keys on the keyboard.

6.      ________ key erases the character on the right side of the cursor.

7.      There are ______ shift keys on the keyboard.

8.      Arrow keys are also called ___________ keys.

9.      F1 is a _________________ Key.

10.  In case you wish to type numbers using numeric keypad on the right side of the keyboard  , press _________ key

11.  Delete key, when pressed erases the character on the ____________ of the cursor.

Tick the correct and cross the wrong ones.

1.      There are five arrow keys.

2.      Spacebar is the shortest key on the keyboard.

3.      A, B, C, D are alphabet keys.

4.      Shift key is used in combination with other keys.

5.      Caps Lock key is used to write small letters.

Answer the following questions.

1.      Which key is used to insert blank spaces between words?

2.      Which keys show the direction of the cursor?

3.      Which key is used to type the capital or upper case letters?

Answers of Fill in the blanks: I, Enter, alphabet , spacebar , ten, delete, two, cursor control, function, number, right-side.

Chapter 4 – Using a Computer:

Fill in the blanks.

1.      The first screen that appears on starting the computer is __________

2.      The thin bar at the bottom of desktop is called ______________

3.      Small pictures on the desktop are called __________________

4.      You should also put____________ on the computer

5.      Start button is present on the ________________

6.      The first screen that appears after switching on the computer is _________

7.       You should __________ the computer after doing work.   

Tick the correct and cross the wrong ones.

1.      UPS is the Central Processing Unit.

2.      You should not put dust covers on the computers

3.      Small pictures on a desktop are called icons.

4.      The start button is present at the button left corner

5.      CPU is the Central Processing Unit.  

Answer the following questions.

1.      Name three things that you see on a desktop.

2.      Name the screen that appears after switching on the computer

3.      Name any two icon present on the desktop

Answers of Fill in the blanks: desktop, taskbar, icons, covers, taskbar, desktop, shutdown.

Chapter 5 – Uses of Computers:

Fill in the blanks.

1.      A computer helps to withdraw money from a/an____________

2.      A computer helps us to watch__________ and _____________

3.      A computer helps to store information on _________________

4.      A computer helps to _____________ to music

5.      A computer helps in booking ______________

6.      ____________ use computers in preparing X-ray reports.

7.      ____________ use computers doe preparing results

Tick the correct and cross the wrong ones.

1.      Computers do not help in making cartoon movies.

2.      Computers help in maintaining account records.

3.      Computers do not help in booking tickets.

4.      Computers do not help in editing photographs.

Answer the following questions.

1.      Who uses computers to diagnose the diseases?

2.      Write the names of your two favorite cartoons.

3.      Which machine is used to withdraw money in a bank?

4.      Write two things that you like to do most on computers.   

Answers of Fill in the blanks: ATM, cartoon and Movie, CDs , listen , tickets , Doctors , Teachers

Chapter 6 – Introduction to MS-Paint:

Tick the correct and cross the wrong ones.

1.      You cannot draw straight lines in paint.

2.                       Is a line tool.

3.      Colors group contains different colors.

4.      Eraser tool is used to erase any part of your drawing.

Answer the following questions.

1.      Complete the missing sequence to start paint.

Click start button  _________ Accessories ____________

2.      Which tool is used to fill color in drawing?

3.      Which tool is used to draw squares?

Abbreviations:

·        PC:

·        VDU:

·        CPU:

·        UPS:       

·        CD:

·        DVD:

·        ATM:

Arrange the jumbled words:

1.     ALTPOP

2.     DSTEKOP

3.     PCOUMETR

4.     PUC

5.     SUHTODWN

6.     TSRAT

7.     SPU

8.     PCU

9.     ISWTHC

10. EPNICL

11.  REAESR

12.  LNIE

13.  EILLPES

14.  TERCAGNLE

Answers:  1.Laptop 2.desktop 3.computer 4.CPU 5.Shutdown 6.Start 7.UPS 8.CPU 9.Switch10. Pencil 11.Eraser 12.Line 13.Eillpes 14. Rectangle