Chapter-4Chapter-4

THE THE KEYBOARDKEYBOARD

Buttons on a keyboard are called Keys.

We can type letters, numbers by simply pressing these keys.

KEYS ON A KEYS ON A KEYBOARDKEYBOARD

The different keys on the keyboard The different keys on the keyboard areare::

1.1. Alphabetic KeysAlphabetic Keys

2.2. Number KeysNumber Keys

3.3. Function KeysFunction Keys

4.4. Special KeysSpecial Keys

5.5. Arrow KeysArrow Keys

Types of KeysTypes of Keys

ALPHABETIC KEYSALPHABETIC KEYSThese are marked with the English alphabets These are marked with the English alphabets

from A to Z. There are 26 Alphabetic Keys.from A to Z. There are 26 Alphabetic Keys.

They are placed closely so that our fingers can reach there easily.They are placed closely so that our fingers can reach there easily.

NUMERIC KEYSNUMERIC KEYS The keys marked with numbers from 0 to The keys marked with numbers from 0 to

9 are called Number Keys.9 are called Number Keys.

The number keys are also placed at the right side of the Keyboard known as Numeric Keypad.

Special KeysSpecial Keys

These keys works in combination with other keys

Spacebar KeySpacebar Key

* Longest key on the keyboard.* Longest key on the keyboard.

* Used to give spaces between the * Used to give spaces between the words. words.

Cursor Movement keysCursor Movement keysUsed to move the cursor in four direction i.e. up,Used to move the cursor in four direction i.e. up,

down, left and right.down, left and right.

UPLEFT

RIGHT

DOWN

Caps Lock KeyCaps Lock KeyUsed to type the letters in capitalsUsed to type the letters in capitals

When you press the Caps Lock Key the light on the keyboard will turn ON. If you press it again, the light will turn OFF.

Backspace KeyBackspace KeyUsed to delete the character to the left of the cursorUsed to delete the character to the left of the cursor

Shift KeyShift KeyUsed to type the letters in capital or small caseUsed to type the letters in capital or small case

without using Caps Lock key.without using Caps Lock key.

Also used to type symbols printed on the top Also used to type symbols printed on the top of the Number Keys.of the Number Keys.

!

Enter KeyEnter Key

Used to tell the computer that you Used to tell the computer that you havehave

finished a word or line. It brings the finished a word or line. It brings the cursorcursor

down to the next line.down to the next line.

Delete KeyDelete Key

Used to erase anything typed from the Used to erase anything typed from the right side of the cursorright side of the cursor..

Function KeysFunction Keys

The Function keys are placed The Function keys are placed at the top row of the at the top row of the

keyboard marked with F1, keyboard marked with F1, F2.......F12F2.......F12

They are used to perform They are used to perform special functions.special functions.

Tab KeyTab Key

Allows the cursor to jump five spaces Allows the cursor to jump five spaces forwardforward

All the above keys combined All the above keys combined together to form a Keyboardtogether to form a Keyboard

It’s QUIZ It’s QUIZ TIME TIME

now !!now !!

Tell the no. of different types of Tell the no. of different types of keys present on keyboardkeys present on keyboard

vi) Enter keysvi) Enter keys

v) Space key v) Space key

iv) Arrow keysiv) Arrow keys

iii) Function keysiii) Function keys

ii) Number keysii) Number keys

i) Alphabetical i) Alphabetical keyskeys

v) NUFCITON YEKSv) NUFCITON YEKS

iv) PSAC LKOCiv) PSAC LKOC

iii) TEENR KYEiii) TEENR KYE

ii) HISFT YEKii) HISFT YEK

i) BERNUMS EKYi) BERNUMS EKY

2. Rearrange the jumbled words2. Rearrange the jumbled words

NUMBERS KEY

SHIFT KEY

ENTER KEY

CAPS LOCK

FUNCTION KEYS