What is Network or Define Network

In this tutorial, we are going to learn what the network is? What kind of networks are available?

We can say that a network is a group of interconnected devices that stay connected to each other. Resources connected to one device may be used by other devices in the group. Here the interconnection between the devices can be in different ways. This interconnection can be made using the cable connection or without using the cable connection. If we give the example of using a cable, we can say that we can make cable connections with networking cable, telephone line cable, etc. And if we want to build a network without using cables we can use radio waves, satellites, microwaves, infrared light beams, etc.

This network is divided into some sections based on the coverage area of the network. Such as LAN, MAN, WAN, etc. If the cable is used to build these networks, then we can call these networks is "Wired  Network". On the other hand, if these networks are built without the use of cables then we can call them "Wireless Network". Such as Wireless LAN or WLAN or Wifi or we can say Wireless WAN etc.

The two most widely used types of networks are LAN and WAN. As an example of a LAN, we can say that the network we use in our office and home is called LAN. Such as Wifi or Wireless LAN. On the other hand, as an example of WAN, we can say that the internet is a WAN network. Which is a collection of networks that are interconnected to each other.

One thing we will notice here is that in the case of LAN there will be a collection of devices that are interconnected to each other. And in the case of WAN, there will be a collection of networks that are interconnected to each other.