Input

1. Keyboard

1.1. Wired keyboard

1.2. Wirless keyboard

2. Scanner & Reading device

2.1. Flatbed

2.2. Pen or Handheld

2.3. Sheet-fed

2.4. Drum

3. Video input

3.1. Webcam

3.2. Video camera

4. Pointing device

4.1. Mouse

4.2. Trackball

4.3. Touchpad

4.4. Pointing stick

5. Voice input

5.1. Microphone

5.2. Audio input

6. Pen input

7. Game controller

7.1. Gamepads

7.2. Joysticks & Wheels

7.3. Light guns

7.4. Dance pads

7.5. Motionsensing controllers

8. Terminal

9. Touch screen & Touch sensitive pad

9.1. Touch screen

9.2. Microsoft surface

9.3. Touch-sensitive pads

10. Digital camera

10.1. Studio cameras

10.2. Field cameras

10.3. Point-and-shoot camera

11. Biometric input

11.1. Fingerprint reader

11.2. Face recognition system

11.3. Hand geometry system

11.4. Voice verification system

11.5. Signature verification system

11.6. Iris recognition system

11.7. Retinal scanners