Computer networks are classified in different ways based on size, coverage area, and purpose. The main types of networks are explained below.
Personal Area Network (PAN)
- A personal area network (PAN) is a computer network used for communication among computer and different information technological devices close to one person.
- Is a small network established for communication between different devices such as laptops, computers, mobiles and PDAs.
- A pan may include wired or wireless devices.
- The range of pan is less then three meters.
Local Area Network (LAN)
- Local area networks are one of the most frequently discussed types of computer networks.
- They are a group of computers which are connected in a small area like an office and a building.
- It is used for connecting two or more computers with a communication medium like coaxial cable, twisted pair, etc.
- It is less costly and built with inexpensive hardware like network adapters, hubs, and Ethernet cables.
Metropolitan Area Network (MAN)
- MAN is larger than LAN.
- It is spread across a city. Since it covers a city.
- It is created by connecting two or more LANs located in a city.
- It is smaller than area covered by WAN.
- Cable television branches of a local bank in a city are common examples of MAN.
Wide Area Network (WAN)
- Wide area network provides long distance transmission of data.
- The size of the WAN is larger than LAN and MAN. A WAN can cover country, continent or even a whole world.
- Internet connection is an example of WAN. Other examples of WAN are mobile broadband connections such as 3G, 4G etc.
