oxford computer book Class two chapter 1 to 3

1. CLASS TWO
Lesson 1
Topic: A smart machine
Exercise
Q: the steps to start a computer are given below. Number the steps in the correct
order.
Answer a) 4 b) 1 c) 3 d) 2
a. switch on the monitor.
b. switch on the UPS.
c. switch on the power button on the CPU cabinet.
d. switch on the main supply.
Q: Fill in the blank.
Answer a) Pictures b) Desktop c) UPS d) Fingers e) Start
a. The icon on the desktop are like small……………………..
b. When you switch on the computer, the first screen that appears is called
……………………
c. The power supply is kept ON to keep the ……………………..
d. You can work on the tablet computer using your ……………………….
e. Click the ……………………….buttonto shut down the computer.
Q: Write T for the true statementand F for the false one.
Answer a) T b) F c) T d) F e) F
a. You should start and shut down a computer in the properway.
b. A desktop computer can run on battery.
c. A laptop computer can carry from one place to another.
d. You should not switch off the UPS after shutting down the computer.
e. The small pictures on the desktop are images.
Q: Choose the correctoption.

2. Answer a) All of these b) Personal
computer
c)icons d) cannot take
decision
e) never make
mistake
a. A type of the computer:
1) Desktop 2) laptop 3) palmtop 4) all of these
b. The full form of PC is:
1) Private computer 2) personal computer 3) pure computer 4) pilot computer
c. The small pictures on the desktop are called:
1)application 2) images 3) icons 4) diagrams
d. which one is not true about a computer.
1) very fast 2) never gets tired 3) does not make mistakes
4) can take decision
e. which one is not true about humans?
1) get tired after 2) have feelings 3. Never make mistakes 4. Can take
decisions.
Lesson 2
Topic: - Parts of computer
Q: write T for the true statementand F for the false one.
Answer a) F b) T c) F d) T
a. The CPU controls all the parts of a computer, except for the input devices.
b. Speakers can be used to listen to music without disturbing others.
c. A CD can store more data than a DVD.
d. A USB can be easily carried in your pocket.
Q: choose the correctoption.
Answer a) All of the
above
b) microphone C) UPS d) mouse
a. Which one is true about the CPU?
1) Its full form is central processingunit. 2) it is the brain of the computer.
3)it controls all the computer. 4) all of the above.
b. which one is an input device?
1) printer 2) speaker 3) microphone 4) headphones
c. which of the following is not used to store data?

3. 1) CD 2) DVD 3) USB 4) UPS
d. which one is called a pointing device?
1) keyboard 2) mouse 3) printer 4) hard disk
Lesson 3
Topic: - keyboard
Q. Answer in one or two words.
Answer a) Cursor b) Cursor controlkeys
c) Tab key d) ESC e) Delete key
a. it is a small blinking line on the monitor.
b. These move the cursoron the monitor.
c. This key is used to move the cursor to the right by many
spaces.
d. This key is used to cancel a menu or a dialog box.
e. It is used to erase anything typed on the right side of the
cursor.
Q: Fill in the blank with correctwords.
Answer 1) Keyboard 2) Backspace 3) control 4) ON 5) shift
1. A ……………………… is a device that consist of number of keys.
2. The cursor……………………………. Keys are used to move the cursoron the
monitor.
3. The ………………. Key erases anything typed on the left side of the cursor.
4. When the CAPS LOCK key is ……………………….., all the letters typed will
appear in capital on the monitor.
5. If you want to type symbolof the key, first press the …………………… key.
Q. Choose the correctoption.
Answer a) Tab b) Shift c) Num
lock
d) Caps
lock
e) 4
a. the key used to move the cursor by many spaces.

4. 1) TAB 2) ESC 3) SPACEBAR 4) BACKSPACE
b. the key used to display the upper symbol when pressed with a key having two
characters.
1) CAPS LOCK 2) NUM LOCK 3) SHIFT 4) none of these
c. the key pressed to use the numeric keypad on the right side of the keyboard.
1) CAPS LOCK 2) NUM LOCK 3) ESC 4) DELETE
d. when this key is ON, the alphabetic characters are display in capital.
1) CAPS LOCK 2) NUM LOCK 3) SHIFT 4) none of these
e. The number of cursor controlkeys on the keyboard are.
1) 3 2) 2 3) 4 4) 1
Worksheet
1. Searchfor two input and two output devices in the grid given below.
Keyboard Mouse printer Headphones
S C W F H Y I N B F
X D P R I N T E R D
E F J S Y J P S D S
W R T G T U T A E M
F H R F R Y E W V O
K E Y B O A R D C U
G S E A G D S C X S
T A W S D E A G G E
Y W A W S R W H H D
Y W A W S R W H H D
H E A D P H O N E S
2. WHAT AM I?
Answer a) USB b) Printer c) Microphone d) CPU e) Mouse
a) I am used to store data and can easily carried in a pocket.
b) I am used to take a printout.
c) I am used to record sound.
d) I control all the parts of a computer.
e) I am an input device. I am also known as a pointing device.

5. 3. Label the four parts of a computer system.
4. Put the tick ( ) for the correct label and cross ()for the wrong one in the boxes.
Write the correct labels here.
a………………….
b…………………
c…………………
d…………………
Lesson 1
Topic: A smart machine

6. Q1. What is machine?
Ans. Machine are made by us to make our work easy to do.
Q2. What is computer?
Ans. Computer is an electronic device which receive the data process onit and
gives output.
Q3. What is desktop computer?
Ans. The computer that are kept on desk.
Q4. What is the desktop?
Ans. The background on the computer is called desktop.
Q5. What are icons?
Ans. Small pictures on the desktop are called Icons.
Lesson 2
Topic: - Parts of computer
Q1. Define monitor.
Ans. It looks like a TV and used to see pictures.
Q2. Define input devices.
Ans. It is used to enter data into a computer.
Q3. What is output devices.
Ans. it is used to give output which may be text, images etc.
Q4. Define CPU.
Ans. It controls all other parts of a computer.
Q5. Write the full form of CPU?
Ans. CPU stand for Central ProcessingUnit.
Q6. Define printer.
Ans. It is used to take printout.

7. Lesson 3
Topic: - keyboard
Q1. What is keyboard?
Ans. It has many keys used for typing.
Q2. What is cursor?
Ans. A small blinking line on the monitor.
Q3. Define cursorcontrol keys?
Ans. These keys are used to control the cursor.
Q4. Define backspacekey?
Ans. It erases left of the cursor.
Q5. What is delete key?
Ans. It erases the right of the cursor.
Q6. Define caps lock key?
Ans. It is used to type capital letters.
Q7. What is tab key.
Ans. It is used to jump the cursor.
Q8. What is ESC key?
Ans. It is used to close menu and dialog box.