This video explains Input Devices in Hindi.
To watch in English click on - https://youtu.be/iiJ72-rzgsU

For Notes on Input devices click on - https://simplycoding.in/input-devices-2/

It covers
1. Keyboard
2. Mouse
3. Touch pad
4. Microphone
5. Camera
6. Scanner
7. OMR
8. OCR
9. Touch screens
10. Bar code
11. Magnetic Strip
12. MICR