Computer Networks

Why CN ? File/ Application Sharing Hardware Sharing Client-Server model Voice over IP (VoIP) Storage

A set of devices(or nodes) connected by media link is called Network. A node can be a device which can send or recieve data generated by other nodes on the network like printer etc :

is client server model differnet from this internode communication The links connecting the devices are called communicating channels </br>

Transmission mode

Simplex </br> Half Duplex </br> Full Duplex </br>

Transmission media

Guided Media

Coaxial </br>

Baseband </br> Broadband </br>

fibre Optics

Twisted </br>

Unshielded </br> Shielded