Net working and internet. 

       

What is a Network?

A network consists of multiple devices that communicate with each other. It can be as small as connecting two computers or as large as connecting billions of devices. While a traditional network consists of desktop computers, modern networks can include laptops, tablets, smartphones, televisions, game consoles, smart devices, and other electronics.

Relation Between Network And Internet

The Internet itself is a network because it allows information to be shared through computing devices. The Internet doesn't just connect computers in different cities but also connects computers across oceans and even space. On the other hand, in Antarctica and the Arctic, the internet reaches researchers via satellite connection.

It is easy to conclude that the Internet is a prime example of a WAN. After all, the letter "W" in the abbreviation "WAN" means the word "wide" and the Internet is clearly the widest of all networks!

Types of networking:

1. Local Area Network (LAN).

LAN is the most frequently used network. It is a computer network that connects computers through a common communication path, contained within a limited area, that is, locally. A LAN encompasses two or more computers connected over a server. The two important technologies involved in this network are Ethernet and Wi-fi.  It ranges up to 2km & transmission speed is very high with easy maintenance and low cost.

example for LAN:

2. Metropolitan Area Network (MAN).

A MAN is larger than a LAN but smaller than a WAN. This is the type of computer network that connects computers over a geographical distance through a shared communication path over a city, town, or metropolitan area. This network mainly uses FDDI, CDDI, and ATM as the technology with a range from 5km to 50km. Its transmission speed is average. It is difficult to maintain and it comes with a high cost.

example of MAN network:

3. Wide Area Network (WAN).

WAN is a type of computer network that connects computers over a large geographical distance through a shared communication path. It is not restrained to a single location but extends over many locations. WAN can also be defined as a group of local area networks that communicate with each other with a range above 50km. Here we use Leased-Line & Dial-up technology. Its transmission speed is very low and it comes with very high maintenance and very high cost.

example of WAN network: