Input

1. Pointing Devices

1.1. Mouse

1.1.1. Wired

1.1.2. Wireless

1.2. Trackball

1.3. Touch pad

1.4. Pointing stick

2. Display Devices

2.1. Touch Screens

2.2. Touch Sensitive Pads

2.3. Pen Input or Digital pen

3. Video Input

3.1. Video Camera

3.2. Web cam

3.3. Video conference

4. Scanners and Reading Devices

4.1. Flatbed

4.2. Pen or Handheld

4.3. Sheet-fed

4.4. Drum

5. Terminals

5.1. POS Terminal

5.2. ATM

5.3. DVD kiosk

6. Input Devices for Physically Challenged Users

6.1. Keyguard

6.2. Keyboards with larger keys

6.3. On-screen keyboard

6.4. Various pointing devices

6.5. Head-Mounted pointer

6.6. Gesture recognition

6.7. Computerrized implant devices

7. Input Devices

7.1. Keyboard

7.1.1. Wired Keyboard

7.1.1.1. USB Port

7.1.1.2. Keyboard Port

7.1.2. Wireless Keyboard

7.1.2.1. Bluetooth

7.1.2.2. IrDA

7.2. Game Controllers

7.2.1. Gamepads

7.2.2. Joystick and Wheels

7.2.3. Light guns

7.2.4. Dance pads

7.2.5. Motion sensing controllers

8. Voice Input

8.1. Voice Input

8.2. Voice recognition

8.3. Audio Input

8.3.1. Speech

8.3.2. Music

8.3.3. Sound Effects

9. Mobile Devices

9.1. Digital Cameras

9.1.1. Studio cameras

9.1.2. Field cameras

9.1.3. Point-and-shoot cameras

10. Biometric Input

10.1. Fingerprint reader

10.2. Hand geometry system

10.3. Face recognition system

10.4. Voice verification system

10.5. Signature verification system

10.6. Iris recognotion system

10.7. Retinal scanners