About

A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wirelessly through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.

The notes of Computer Network below include following topis:

• Introduction to Computer Networks

• Physical Layer

• Network Layer

• Data Link Layer

• Transport Layer

• Medium Access Control

• Noisy Channels