What is LAN (Local Area Network)? | Types of Networks in Computing

What is lan

I’m Sourav Khanna and welcome to the session on network infrastructure implementations. Today I’m going to be talking about design versus function. And then I’m going to talk about categories of different networks. With that, let’s go ahead and begin the session.

Let’s begin this session by talking about the difference between design and function.

When describing a network, you have a couple of different options are you describing its design or its function? If you are going to describe its design, then the first place to start is to describe its topology?

Is it a bus network, Is it a star network or points if you’re going to describe how the network functions, then the first place to start is to describe the category or infrastructure implementation of that network. And with that, let’s move on to categories of networks.

Types of Networks:- 

  1. Local Area Network
  2. Metropolitan Area Network
  3. Personal Area Network
  4. Video Teleconference Network

What is LAN (Local Area Network):-

First up is the local area network or the LAN. Most lands are encompassed by a single network address range, that address range may be broken up into subgroups. Through the use of virtual local area networks. VLANs.

What is LAN

A LAN can span anywhere from a small area like a single room to a whole building or a small group of buildings, the land tends to be the highest speed network, it is becoming more common to see 10 gigabits per second networking on the land. The most common types of network on the land are the 802 dot three or Ethernet and or the 802.11 or wireless local area network.

What is MAN (Metropolitan Area Network):-

These are the most common types of networks found on the LAN then there is the Metropolitan Area Network or the man, which is larger than land. Most often it contains multiple local area networks.  MANs or Metropolitan Area Networks are often owned by municipalities.

When a man is owned by a private entity, it is sometimes called a campus Area Network, then there is the win the wide-area network. Now a win spans significant geographic distances, they can be described as a network of networks in the best example of a win is the internet.

So how do you tell when a man becomes a win? Well, as a general rule, if all of the infrastructure implementations have a single owner, then it is not a win. If it’s large, it’ll be a man. And if it’s not quite so large, it’ll be a LAN. But it’s really easy to tell a personal

Area Network a pan. Why, because they are extremely distance and size limited.

What is PAN (Personal Area Network):-

Most often a pan is a connection between only two devices. Common examples include a Bluetooth connection between a keyboard and a computer that’s a pan, then there are infrared or IR connections between a smartphone and a printer. That’s a pan.

What is LAN

Another example of a pan is near field communication, which is now becoming seen between a smartphone and a payment terminal. The pan tends to have low throughput of data and low power output, they don’t consume a whole lot of power.

As the distance between devices increases, the throughput on a pan will decrease. Now a couple of special categories of networks first is the supervisory control and data acquisition network, the scatter network. Now a scattered network is a type of industrial control system or ICS that is designed to control large scale deployments of equipment.

The control equipment is usually at more than one sight. Scatter is often deployed in energy distribution systems by utility companies. Scatter uses a distributed control system or DCS to communicate with programmable logic controllers, PLCs and or remote terminals to control the equipment and processes from a central location.

So they have a central location to control equipment that’s at remote locations. Scattered networks are often proprietary, and often require additional training to understand and operate them. The last special mention on categories of networks is the media net.

It’s a network designed and implemented specifically to handle voice and video. They are designed and implemented to remove the quality of service issues like latency, or jitter that can occur in other types of infrastructure.

What is VTC (Video Teleconference Network):-

A video teleconference network or VTC is an example of a MediaNet. They are often implemented as their own infrastructure, or as a sub infrastructure of a larger network.


That concludes this session on network infrastructure implementations. I talked about the differences between the design and function of networks. I concluded with a discussion on the different categories of networks.

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