Grade II, Chapter 2

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Learn with Hafiza Palwasha

OXFORD (Book 2), KEYBOARD
Computer Science With Application Software (Third Edition).

Solution

Chapter No. 2
Parts of a Computer

NEW WORDS
Write these new words on neat copies. There is no need to memorize these words but students should be able to read and understand these words as I explained and discussed in class.
1.    Various
2.    CPU Cabinet
3.    CPU Box
4.    Computer System
5.    Visual Display Unit (VDU)
6.    Keys
7.    Numbers
8.    Letters
9.    Symbols
10.  Pointing device
11.  Drag
12.  Handled
13.  Mouse pad
14.  Smooth surface
15.  Devices
16.  Different functions
17.  Printout
18.  Microphone
19.  Speakers
20.  Headphones
21.  Multimedia devices
22.  Record
23.  Without disturbing others
24.  Helping devices
25.  Data
26.  Uninterrupted power supply
27.  Floppy disks
28.  Hard disks
29.  CDs
30.  DVDs
31.  USB
32.  CD-ROM
33.  DVD-ROM
34.  Flash drive
35.  Store
36.  Corrupted

Page No. 13
Q: Use the given colour code to colour the keyboard.
Solution: 

Exercise
Solution

Page No. 19
Q No. 1: Bina's father wants to store data in his USB but he cannot find it. Bina has spotted it at the other end of the garden. Can you help Bina reach the USB without stepping on the grass?
Solution: 


Page No. 20
Q No. 2: Write T for the true statement and F for the false one.
Solution:
a.   The CPU controls all the parts of a computer, except for the input devices.                    F
b.   Speakers can be used to listen to music without disturbing others.                                  F
c.   A CD can store more data than a DVD.                         F
d.   A USB can be easily carried in your pocket.      T

Page No. 20
Q No. 3: Choose the correct option.
Solution:
a.   Which one is true about the CPU?
      iv. all of the above (is correct)
b.   Which one is an input device?
      iii. Microphone (is correct)
c.   Which of the following is not used to store data?
      iv. UPS (is correct)   
d.   Which one is called a pointing device?
      ii. Mouse (is correct)   

Page No. 20
Q No. 4: Answer the following.
a. What are the four main parts of a computer?
Answer: The four main parts of a computer are:
1. Monitor
2. Central Processing Unit (CPU)
3. Keyboard
4. Mouse
b. Compare output and input devices.
Answer: 

c. List two uses of a mouse.
Answer: Two uses of a mouse are:
1. It helps to point the things on screen.
2. It helps to drag the things on screen.
d. Mention two devices used to listen to recorded sound or music.
Answer: Two devices used to listen to recorded sound or music are:
1. Speaker
2. Headphones
e. Name any three devices used to store information permanently.
Answer: Three devices sued to store information permanently:
1. CD
2. DVD
3. USB
f. Can you design a keyboard and a mouse that is more suitable for a younger person or an elderly person to use? The keyboard and the mouse both need to have all the necessary functions available to use.
Answer: Lab work (will be discuss in Computer lab. Students do not have to do this question on neat copies).
f. When creating your own designs or typing a document think about why a monitor is also a crucial part of a computer. How do the mouse, keyboard, and monitor all need to work together? Why?
Answer: Lab work (will be discuss in Computer lab. Students do not have to do this question on neat copies).

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