Grade II, Chapter 3

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Learn with Hafiza Palwasha

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

Solution

Chapter No. 3
Keyboard

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.    Device
2.    Keys
3.    Commands
4.    Pressing
5.    Whatever
6.    Type
7.    Appears
8.    Cursor
9.    Control
10.  Blinking
11.  Position
12.  Arrow
13.  Marked
14.  Backspace
15.  Erases
16.  Delete
17.  Caps Lock
18.  Num Lock
19.  Numeric
20.  Keypad
21.  Shift Key
22.  Function
23.  Symbol
24.  *
25.  Tab Key
26.  Dialog box
27.  Clicked
28.  Start button
29.  Start menu
30.  Disappear
31.  Damaged
32.  Drop
33.  Spill

Exercise
Solution

Page No. 29
Q No. 1: Answer in one or two words.
Solution:
a.   It is the small blinking line on the monitor.     Cursor
b.   These move the cursor on the monitor.     Cursor Control Keys
c.   This key is used to move the cursor to the right by many spaces.     Tab Key
d.   This key is used to cancel a menu or a dialog box.     Esc Key
e.   It is used to erase anything typed on the right side of the cursor.     Delete Key

Page No. 29
Q No. 2: Fill in the blanks with the correct words.
BACKSPACE,     control,     keyboard,     ON,     SHIFT
Solution:
a.   A keyboard is a device that consists of a number of keys.
b.   The cursor control keys are used to move the cursor on the monitor.
c.   The backspace key erases anything typed on the left side of the cursor.
d.   When the CAPS LOCK key is on, all the letters typed will appear in capital on the monitor.
e.   If you want to type the upper symbol of a key, first press the shift key.

Page No. 30
Q No. 3: Do the following.
a.   Colour the keys used for typing @@$$##**&& in blue.
b.   Colour the keys used to type TIGER in yellow.
c.   Colour the key used to delete the letter on the left side of the cursor in red.
d.   Colour the key used to delete the letter on the right side of the cursor in green.
Solution:

Page No. 30
Q No. 4: Choose the correct option.
Solution:
a.   The key used to move the cursor by many spaces.
      i. TAB (is correct)
b.   The key used to display the upper symbol when pressed with a key having two characters.
      iii. SHIFT (is correct)   
c.   The key pressed to use the numeric keypad on the right side of the keyboard.
      ii. NUM LOCK (is correct)   
d.   When this key is ON, the alphabetic characters are displayed in capital.
      ii. CAPS LOCK (is correct)   
e.   The number of cursor control keys on the keyboard are
      iii. 4 (is correct)

Page No. 31
Q No. 5: Answer the following.
a. Which key is used to move the cursor to the right by many spaces?
Answer: We use 'Tab key' to move the cursor to the right by many spaces.

b. Analyse the functions of the Alphabet keys, Number keys, SPACEBAR key, and ENTER keys.
Answer: Alphabet Keys: It allows you to enter letters.
Number Keys: It allows you to enter numbers.
SPACEBAR Key: It allows you to create space between words or text.
Enter Keys: It allows you to move the cursor to next line.

c. Identify the keys which perform similar functions as the mouse.
Answer: Arrow keys on the keyboard perform similar functions as the mouse. We can move the cursor:
1. Up
2. Down
3. Left
4. Right

d. Which keys are used to erase a word? Is it useful to have different ways of doing the same task?
Answer: The delete key and backspace key are use to erase a word.
Yes, it is useful because it improves the speed a typing.

e. Compare the following keys and note the similarities in their function.
i.  NUM LOCK and CAPS LOCK
ii. SPACEBAR and TAB
Answer: NUM LOCK and CAPS LOCK


SPACEBAR and TAB


f. How would you close a menu bar which has been opened unexpectedly?
Answer: A menu bar which has been opened unexpectedly will close by pressing the 'Esc button'.

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