Class XII
Chap 1 - Computer Networking
https://drive.google.com/file/d/0BxdixE-ge8NUOWxfcXlRTTBPZDg/view?usp=sharing
Chap 2 - Open Source Concepts
https://drive.google.com/file/d/0BxdixE-ge8NUTE52czN6WHhqeXM/view?usp=sharing
Chap 1 - Computer Networking
https://drive.google.com/file/d/0BxdixE-ge8NUOWxfcXlRTTBPZDg/view?usp=sharing
Chap 2 - Open Source Concepts
https://drive.google.com/file/d/0BxdixE-ge8NUTE52czN6WHhqeXM/view?usp=sharing