Computer

Keyboard and Mouse

Class 2

🎯 Learning Objectives

Know the parts of a keyboard and what they do.
Identify important keys: letters, numbers, Space, Enter, Backspace.
Know the parts of a mouse and how to use it.
Understand left click, right click, and scroll.

📖 Let Us Begin!

When Meena types her name on the computer, she uses the keyboard. When she wants to open a game, she moves the mouse and clicks on it. The keyboard and mouse are the two most important tools we use to talk to a computer.

They are called input devices because we use them to give information and instructions to the computer.

The Keyboard

A keyboard has many keys arranged in rows. Here are the important groups of keys:

Key / Group	What it does
Letter keys (A–Z)	Type letters to write words and sentences
Number keys (0–9)	Type numbers
Space bar	The long key at the bottom — adds a space between words
Enter key	Starts a new line or confirms an action
Backspace key	Deletes the letter to the left of the cursor
Shift key	Makes letters capital (UPPERCASE)
Caps Lock key	Locks all letters in UPPERCASE until pressed again
Arrow keys	Move the cursor up, down, left, right

The Space bar is the longest key on the keyboard. Can you find it? It is at the very bottom in the middle.

The Mouse

A mouse has two buttons and a scroll wheel. We place it on a flat surface called a mouse pad and move it to control the pointer on the screen.

Action	How to do it	What it does
Left click	Press the left button once	Selects an item or opens a file
Double click	Press the left button twice quickly	Opens a program or file
Right click	Press the right button once	Opens a menu with options
Scroll	Roll the wheel in the middle	Moves the page up or down
Drag	Hold left button and move mouse	Moves an item on the screen

📝 Key Words

Word	Meaning
Input device	A device used to give information to the computer (keyboard, mouse)
Cursor	The blinking line or arrow on screen that shows where you are
Click	Pressing a mouse button
Scroll	Moving up or down a page using the mouse wheel
Mouse pad	A flat surface on which the mouse is moved

⭐ Key Points to Remember

The keyboard and mouse are input devices.
The Space bar adds spaces between words. Enter starts a new line. Backspace deletes.
Shift makes letters UPPERCASE.
Left click selects. Double click opens. Right click shows options. Scroll moves the page.
The mouse controls the pointer on the screen.

✏️ Practice Questions

A. Fill in the Blanks

1. The keyboard and mouse are called devices.

2. The key adds a space between words.

3. The key deletes the letter to the left.

4. Pressing the left mouse button twice quickly is called click.

5. The key makes letters UPPERCASE.

B. Multiple Choice Questions

1. Which key starts a new line?

(a) Space bar(b) Enter(c) Backspace

2. What does right click do?

(a) Opens a file(b) Shows a menu(c) Deletes text

3. What is the mouse placed on?

(a) Keyboard(b) Monitor(c) Mouse pad

C. Short Answer

1. Name four important keys on a keyboard and what they do.

2. What is the difference between left click and double click?

3. What is a cursor?

Keyboard Practice

On a piece of paper, draw a simple keyboard layout. Label these keys: Space bar, Enter, Backspace, Shift, Caps Lock, and the arrow keys. Then write what each key does next to it.

Want to use this as a worksheet? Switch to the A4 printable view.

Learning Objectives

Know the parts of a keyboard and what they do.
Know the parts of a mouse and how to use it.
Understand left click, right click, double click, and scroll.

Let Us Begin!

The keyboard and mouse are input devices -- we use them to give information and instructions to the computer.

Important Keyboard Keys

Key	What it does
Letter keys (A-Z)	Type letters
Number keys (0-9)	Type numbers
Space bar	Adds a space between words
Enter	Starts a new line or confirms an action
Backspace	Deletes the letter to the left
Shift	Makes letters UPPERCASE
Caps Lock	Locks all letters in UPPERCASE

Mouse Actions

Action	What it does
Left click	Selects an item
Double click	Opens a program or file
Right click	Opens a menu with options
Scroll	Moves the page up or down

Key Points to Remember

Keyboard and mouse are input devices.
Space bar = space. Enter = new line. Backspace = delete. Shift = UPPERCASE.
Left click = select. Double click = open. Right click = menu. Scroll = move page.

A. Fill in the Blanks

The keyboard and mouse are called devices.
The key adds a space between words.
The key deletes the letter to the left.
Pressing the left mouse button twice quickly is called click.
The key makes letters UPPERCASE.

B. Multiple Choice Questions

Which key starts a new line?
(a) Space bar(b) Enter(c) Backspace
What does right click do?
(a) Opens a file(b) Shows a menu(c) Deletes text
What is the mouse placed on?
(a) Keyboard(b) Monitor(c) Mouse pad

C. Short Answer

Name four important keys on a keyboard and what they do.
What is the difference between left click and double click?
What is a cursor?

Match the Key to Its Job

Draw a line to match each key to what it does:

Space bar Deletes a letter

Enter Adds a space

Backspace Makes letters BIG

Shift Starts a new line

Now type your name on a computer using the keyboard. How many keys did you press?

I pressed keys to type my name.