Knowledge in physical layer

Networking(Network Models)

This well defined and easy to understand notes covers all you need to know about ISO & OSI models, its layered structures in details its significance along with each layer functionality, which comes under data communication of computer networks.

TRANSMISSION MEDIA AND PHYSICAL LAYER

This PPT contain notes related to TRANSMISSION MEDIA AND PHYSICAL LAYER, which generally thought in 5th semester. And it also contain example questions.