This document provides information about different types of computer keyboards. It begins by defining a keyboard as an input device that contains keys users press to enter data and instructions. It then discusses the inventor of the modern keyboard and describes standard, laptop, gaming, ergonomic, laser/infrared, and rollup keyboards. It also covers wired and wireless connection types. The document concludes by detailing the various parts of a standard keyboard like function keys, numeric keypads, navigation keys, typewriter keys, and special keys.

1. COMPUTER KEYBOARD
Mr. Tariq Saleem Ghayyur
Lecturer
Department of Education, SU

2. Keyboard
A keyboard is an input device that
contains keys users press to enter data
and instructions into a computer

3. A computer keyboard is one of the
primary input devices used with a computer.
Similar to an electric typewriter, a keyboard is
composed of buttons that
create letters, numbers, and symbols, and other
functions. The following sections provide more
in-depth information and answers to some of
the more frequently asked questions about the
keyboard.
3

4. Christopher Latham Sholes was the
inventor of the keyboard for computing devices.
He patented the typewriter that we
commonly use today in 1868.
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5. Types of Keyboard
5

6. Standard Keyboard
• also known as the Desktop Keyboard
• include alphabetic characters,
punctuation symbols, numbers and a
variety of function keys.
6

7. Standard Keyboard
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8. Laptop Keyboards
• has the same keyboard type as a normal
keyboard, except for the fact that most
laptop keyboards condense the symbols
into fewer buttons to accommodate less
space.
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9. Laptop Keyboards
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10. Gaming Keyboards
• are similar to normal keyboards except
they generally contain extra features
such as illuminated keys, multimedia
keys, an additional LCD screen, palm rest
and other features.
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11. Gaming Keyboards
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12. Ergonomic Keyboards
• is a computer keyboard designed with
ergonomic considerations to minimize
the chance of wrist and hand injuries.
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13. Ergonomic Keyboards
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14. Laser or Infrared Keyboards
• this device projects the keyboard on to a
flat surface, such as a table or desk.
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15. Laser or Infrared Keyboards
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16. Rollup Keyboards
• are made of soft plastic or silicone which
can be rolled on itself for travel.
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17. Rollup Keyboards
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18. Connection Type
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19. A. Wired Keyboards
• PS/2
• USB
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20. B. Wireless Keyboards
• Bluetooth
• Infrared (IR)
• Radio Frequency
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21. Bluetooth Keyboard 21

22. Virtual Keyboard (uses an infrared
and laser technology
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23. RF Wireless Keyboard
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24. Parts of the Computer Keyboard
• Function Keys
Across the top of a keyboard are a row of
keys called the Function Keys. Each key is
composed of the letter F and a number, ranging
from F1 to F12. Each of the Function Keys
performs a specific operation based upon what
software is being used.
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25. • Numeric Keypad
Many larger keyboards have an extra
section to the right that contains the Numeric
Keypad. This consists of the numbers 1 through
9, an asterisk, a slash, a dash, a plus sign, an
enter key and a period. There is also is a "Num
Lock" key, which is used to turn on and off the
Numeric Keypad.
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26. • Navigation Keys
The Navigation Keys, also called the
Direction Keys, are used to navigate through
documents and websites. Examples of
Navigation Keys are the up, down, left and right
arrows.
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27. • Typewriter Keys
The center of the keyboard, which contains
the largest amount of keys, includes letters and
numbers. Most typing is done with these keys.
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28. • Special Keys
Other keys include the Alt and Ctrl keys
(used for specific functions), the Tab key (used
to insert the cursor) and the Shift key (used to
make capital letters or symbols that are located
on the number keys).
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29. • Escape
The Escape key is located in the upper left-
hand corner of the keyboard. It is used to cancel
operations.
29

30. Buttons on a keyboard are called Keys.
We can type letters, numbers by simply
pressing these keys.
KEYS ON A KEYBOARD
30

31. The different keys on the keyboard are:
2. Alphabetic Keys
3. Number Keys
4. Function Keys
5. Special Keys
6. Arrow Keys
Types of Keys
31

32. ALPHABETIC KEYS
These are marked with the English alphabets
from A to Z. There are 26 Alphabetic Keys.
They are placed closely so that our fingers can reach there easily. 32

33. NUMERIC KEYS
The keys marked with numbers from 0 to 9 are
called Number Keys.
The number keys are also
placed at the right side of the
Keyboard known as Numeric
Keypad.
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34. Special Keys
These keys works in combination with otherkeys

35. Spacebar Key
* Longest key on the keyboard.
* Used to give spaces between the words.
35

36. Cursor Movement keys
Used to move the cursor in four direction i.e. up,
down, left and right.
UP
LEFT
RIGHT
DOWN 36

37. Caps Lock Key
Used 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. 37

38. Backspace Key
Used to delete the character to the left of the cursor

39. Shift Key
Used to type the letters in capital or small case
without using Caps Lock key.
Also used to type symbols printed on the top of the
Number Keys.
!
39

40. Enter Key
Used to tell the computer that you have
finished a word or line. It brings the cursor
down to the next line.
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41. Delete Key
Used to erase anything typed from the right side
of the cursor.
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42. Function Keys
The Function keys are placed at the top
row of the keyboard marked
with F1, F2.......F12
They are used to perform special
functions.
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43. TabKey
Allows the cursor to jump four spaces
forward

44. All the above keys combined together
to form a Keyboard
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45. 45