The Computer networks are classified according to the extension:
- LAN (local area network), widespread in schools, companies and offices. And ‘the local network that connects your computer to spread over a small area. Connecting through cables; However, each location must be equipped with network cards.
- MAN (metropolitan area network) is a network that covers a metropolitan area of a large city.
- WAN (wide area network) is a wide area network that can connect large computers distributed over large areas.