Input Devices
• Input devices are those devices from
which we can input data and instructions
into the computers. A number...
Input devices

keyboard
KEYBOARD
It is most commonly used input device. It
is used to input data into written form.
Keyboard is merely a collectio...
Input devices

keyboard
Input devices

keyboard

Normal
keyboard
NORMAL KEYBOARD
• A normal keyboard has 101-104 keys
which are distributed in five categories.
• Function keys
F1 to F12
•...
Input devices

keyboard

Normal
Multimedia keyboard
keyboard
MULTIMEDIA KEYBOARD
• Multimedia keyboard
has some additional
keys to operate
multimedia operations
like volume up,
volume...
Input devices

mouse
keyboard

Normal
Multimedia keyboard
keyboard
MOUSE
• It is a pointing device used
to insert instructions into
the computers. It is a hand
held device that controls the...
Input devices

mouse
keyboard
Traditional
mouse
Normal
Multimedia keyboard
keyboard
TRADITIONAL MOUSE
• Traditional mouse is used a
ball built into the bottom with
two small rollers placed two
sides of the ...
Input devices

mouse
keyboard
Traditional
mouse

Optical mouse

Normal
Multimedia keyboard
keyboard
OPTICAL MOUSE
• Optical mouse is a advance
pointing device that uses a
light diode (LED)(1), an
optical sensor (2) and a
d...
Input devices

mouse
keyboard
Traditional
mouse

Optical mouse

Normal
Multimedia keyboard
keyboard
Input devices

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboard
JOYSTICK
• Joystick is a pointing device
mostly used for playing
games. This is a device used to
control the actions in a
...
Input devices

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboard
Input devices

Touch screen

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboar...
TOUCH SCREEN
• Touch screen is the easiest way
to data input into computer.
Touch screen allows the user to
select the ite...
Input devices

Touch screen

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboar...
Input devices

Touch screen

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboar...
MICROPHONE
• Microphone is an input
device used to inputting the
voice signal into the
computer. microphones are
commonly ...
Input devices

Touch screen

mouse
keyboard
Traditional
mouse

joystick

Optical mouse

Normal
Multimedia keyboard
keyboar...
Input devices

mouse
keyboard
Traditional
mouse

Touch screen
scanner
joystick
microphone

Optical mouse

Normal
Multimedi...
SCANNER
• Scanner is an input device used
to insert a picture into the
computer. This is a peripheral
device that converts...
Input devices

mouse
keyboard
Traditional
mouse

Touch screen
scanner
joystick
microphone
Flat bed scanner
Optical mouse

...
FLAT BED SCANNER
• A flat bed scanner uses
a flat surface just like
photocopier. We can
place a picture on the
surface of ...
Input devices

mouse
keyboard
Traditional
mouse

Touch screen
scanner
joystick
microphone
Flat bed scanner
Optical mouse

...
Input devices

mouse
keyboard
Traditional
mouse

Touch screen
scanner
joystick
microphone
Flat bed scanner
Optical mouse

...
Bar code reader
• Bar code reader are
used to read the values
printed on the product
in form of vertical lines.
Bar codes ...
Input devices

mouse
keyboard
Traditional
mouse

Touch screen
scanner
joystick
microphone
Flat bed scanner
Optical mouse

...
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Presentation on input devices...

  1. 1. Input Devices • Input devices are those devices from which we can input data and instructions into the computers. A number of input devices have been developed.
  2. 2. Input devices keyboard
  3. 3. KEYBOARD It is most commonly used input device. It is used to input data into written form. Keyboard is merely a collection of momentary switches.
  4. 4. Input devices keyboard
  5. 5. Input devices keyboard Normal keyboard
  6. 6. NORMAL KEYBOARD • A normal keyboard has 101-104 keys which are distributed in five categories. • Function keys F1 to F12 • Alphanumeric keys A-Z, a-z, 0-9 • Special keys Alt, Ctrl, Enter, Insert, Home, End, Esc etc. • Numeric keypad 0-9,+,-,*,%,@ etc.
  7. 7. Input devices keyboard Normal Multimedia keyboard keyboard
  8. 8. MULTIMEDIA KEYBOARD • Multimedia keyboard has some additional keys to operate multimedia operations like volume up, volume down, play, pause, stop etc.
  9. 9. Input devices mouse keyboard Normal Multimedia keyboard keyboard
  10. 10. MOUSE • It is a pointing device used to insert instructions into the computers. It is a hand held device that controls the pointer on the screen. It has two buttons viz. left button & right button & one scrolling wheel. With the help of mouse you can draw images, select options & move text & images.
  11. 11. Input devices mouse keyboard Traditional mouse Normal Multimedia keyboard keyboard
  12. 12. TRADITIONAL MOUSE • Traditional mouse is used a ball built into the bottom with two small rollers placed two sides of the ball at 90 degree angle from each other. They spin when the ball rolls. A sensor detects how much each roller spins and sends the information to computer and the pointer on the screen moves into the same direction.
  13. 13. Input devices mouse keyboard Traditional mouse Optical mouse Normal Multimedia keyboard keyboard
  14. 14. OPTICAL MOUSE • Optical mouse is a advance pointing device that uses a light diode (LED)(1), an optical sensor (2) and a digital signal (3) processing in place of traditional mouse ball. Optical mouse need plan surface to produce high performance efficiency. Each time the mouse is moved, the beam of light is interrupted by the surface.
  15. 15. Input devices mouse keyboard Traditional mouse Optical mouse Normal Multimedia keyboard keyboard
  16. 16. Input devices mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard
  17. 17. JOYSTICK • Joystick is a pointing device mostly used for playing games. This is a device used to control the actions in a computer game. It consist of a lever used to move the pointer on the screen and buttons used to select options.
  18. 18. Input devices mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard
  19. 19. Input devices Touch screen mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard
  20. 20. TOUCH SCREEN • Touch screen is the easiest way to data input into computer. Touch screen allows the user to select the item by touching the screen at appropriate spot. It has another feature that the user’s finger become the input device to operate touch screen.
  21. 21. Input devices Touch screen mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard
  22. 22. Input devices Touch screen mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard microphone
  23. 23. MICROPHONE • Microphone is an input device used to inputting the voice signal into the computer. microphones are commonly used for live chat. Microphones are also used to record voice into the computer.
  24. 24. Input devices Touch screen mouse keyboard Traditional mouse joystick Optical mouse Normal Multimedia keyboard keyboard microphone
  25. 25. Input devices mouse keyboard Traditional mouse Touch screen scanner joystick microphone Optical mouse Normal Multimedia keyboard keyboard
  26. 26. SCANNER • Scanner is an input device used to insert a picture into the computer. This is a peripheral device that converts a printed image into digital information. There are two types of scanners:
  27. 27. Input devices mouse keyboard Traditional mouse Touch screen scanner joystick microphone Flat bed scanner Optical mouse Normal Multimedia keyboard keyboard Hand held scanner
  28. 28. FLAT BED SCANNER • A flat bed scanner uses a flat surface just like photocopier. We can place a picture on the surface of the scanner:; scanner scans the image and convert into digital form. The picture can be seen on the monitor screen after scanning.
  29. 29. Input devices mouse keyboard Traditional mouse Touch screen scanner joystick microphone Flat bed scanner Optical mouse Normal Multimedia keyboard keyboard Hand held scanner
  30. 30. Input devices mouse keyboard Traditional mouse Touch screen scanner joystick microphone Flat bed scanner Optical mouse Hand held scanner Normal Multimedia keyboard keyboard Bar code reader
  31. 31. Bar code reader • Bar code reader are used to read the values printed on the product in form of vertical lines. Bar codes are recorded on the products by the manufacturers and usually carry the product number.
  32. 32. Input devices mouse keyboard Traditional mouse Touch screen scanner joystick microphone Flat bed scanner Optical mouse Hand held scanner Normal Multimedia keyboard keyboard Bar code reader
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