Firstly you should decide what type of network you want to build. For a Peer-to-peer network there are just a few PCs that are networked by cables. Though, in the case where multiple systems are connected with each other they must be networked through a server.

Your understanding of how to build a network will be clear once you know about the different Computer Networking Components that connects a several systems making the communication between them perfect. Some of the essential devices that are required for networking are:

1. Router

2. Bridge Networking Device

3. Hub

4. Proxy

5. Firewall

6. Multiplexer

7. Modem

Computer Networks can be divided into 2 categories Local Area Network or LAN or WAN. It is depending upon the area that comes under the network.