LAN and WAN
A network which covers a smaller geographical area, like a school or a library, is known as a Local Area Network (LAN).
A network which covers a larger geographical area, like a city or a university campus that has several sites, is known as a Wide Area Network (WAN).
Connection to a network has many advantages for companies, such as:
- Instant update of fast-changing information across large distances, such as car prices, stock prices
- Global communication via tools like Skype, Twitter or email
The internet
The internet is simply a network of networks all connected together. This allows us to access information on other computer systems, sometimes thousands of miles away.
Most of the information we access is displayed through webpages on the World Wide Web.
