Input and Output Device
Input Device 1. Keyboard 2. Numeric Keypad 3. Mouse 4. Tracker Ball 5. Touchpad 6. Remote Control 7. Joystick 8. Driving Wheel 9. Touch Screen 10. Scanner 11. Camera 12. Mic 13. Sensor 14. Light Pen 15. Card Reader 16. RFID 17. OMR 18. OCR 19. Barcode Reader 20. QR