How does the internet work

World wide web

It is a number of servers, storage units, personal computers, routers, fiber-optics, and non-optical links that extend across continents, under seas, and oceans to cover the entire globe to be able to reach all devices around the world.

How the network works

Imagine that you enter a huge shopping center for the first time, and you want to reach a specific store to buy a book, for example, and you do not know where the store is exactly, where it is located, and on which floor or wing of this huge building, so where do you go to inquire? The answer is queries.

There, in the information section, you will find a staff member who will guide you to the location of the store, or you can use a map of the place to show the shortest way to reach it. For example, it tells you to go up from the northern staircase and then walk from the right corridor until you reach it.

This aforementioned analogy is roughly how the network works; The Internet is the commercial center, and it is full of various sites. When you want to access a specific piece of information, you open your browser and then write the name of the site. The browser connects to your computer through the Internet settings, and from there it connects to a specific server called the DNS Server, which asks it for the server address as it does. The information officer gives him the electronic address in the form of his Internet number, then the browser goes to the address to start the request, and the required pages are displayed on the computer screen.

Between the computer obtaining the private internet address of the site and browsing it, there are routers directing the computer to the shortest way, Hops, in order to obtain the required information, and thus it works like a map that shows the location of the store.

Genesis of the Internet

The Internet was established in XNUMX to serve the US Army by linking a large number of computers in universities and research centers together to make the best use of their computational capabilities. The beginnings were with a network called ARPANET, then the NCP protocol was replaced by the US Department of Defense in XNUMX with another protocol package, TCP / IP, which is better, and it is the same protocols in force until now.

Internet infrastructure

It is a huge number of servers, switches, routers, and fiber optics links, extending across the entire globe, to reach all devices at one time. The process of building and developing the structure took more than four decades to reach what it is today.

Internet Protocol

It is a special language and rules used to transmit and exchange information and data over the Internet. In the beginning, the NCP protocol was adopted, but with the development of the network and the development of its areas of use, new protocols were needed to meet the new and growing requirements of users. This is especially true after the emergence and development of multimedia, e-mail services, and so on.

Currently, the adopted Internet protocol is TCP/IP, and this protocol is a package of protocols that are used for the purpose of transferring data over the Internet, and each type of them is specialized in transmitting a specific type of data. For example, the protocols for broadcasting multimedia files are different from the protocol for browsing websites (HTTP) and those used for exchanging mail (SMTP), and so on.