Types of networks

1. Introduction

The modern world now is now virtually dependent on the use of computer networks whether local or as part of the internet and other wide area networks.

Think of the things that need networks starting from the time you get up:

• Having a quick check on your smartphone - it needs the telephone network to work
• Switching on the television to catch the news, for satellite TV it needs the satellite network, for streaming it needs the internet
• Making an appointment say with the local surgery - it needs the network in the surgery
• Buying coffee in the local shop - it needs the point-of-sale network to take payment
• Ordering a taxi or buying a train ticket - it needs the internet or transport network
• In school, you will be using the school network

And so on. Therefore it is important that you understand computer networks.