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Timeline
A keyboard has keys on it which are used to type.
Alphabet keys are used to type letters, words and sentences.
Number keys are used to type numbers.
Spacebar key is used to give a blank space.
Enter key starts a new line.
Backspace key is used to erase letters and numbers to the left of the cursor.
Delete key is used to erase letters and numbers to the right of the cursor.
A mouse helps us point at objects and select things on the monitor.
A small arrow moving on the monitor, is called mouse pointer.
Single-click, double-click and scroll are mouse actions.
Chapter 3: Parts of a Computer
Choose the correct option.
1. Which of these looks like a television?
a. b.
c. d.
2. Which of these is the brain of a computer?
a. b.
c. d.
3. Which of these is used to point at objects and select things on the monitor?
a. b.
c. d.
The Keyboard and the Mouse 33

