What is the Internet ? | How does the Internet work ? | I can tell you for sure , so the details of the Internet will not ever know ! - Great tune !!

When you chat with someone on the Internet or send e-mail when anyone who ever wondered how many of these tasks are going to work together on different computers? If you're sitting at the table or in the lap of your computer, and the other side of the computer with your friend sitting there ready for you to contact.


But the gap between you and your friend's computer has dozens of computers which accelerates the empty space between you and your friend's computer meets. And thus the whole world with a computer is connected to another computer across the Internet, and it is. But this is a separate separate computers that are able to establish a relationship between themselves, how? That's from all the friends come to visit.


What is the Internet?
Global communication system has been improved so much, and all credit to him, whose name is on the internet. The 0 in less than a year has spread to about 10 countries spread over different. Even many of the poorer countries of the world have been connected to the net.

I think that most people, including you, is the meaning of the Internet to go online. But to tell the truth it is nothing more than a common computer network. Think of a street, which is around the whole world. The traffic flow on the road as well as the destination of the data flowing through computer, and reached its destination. This is the foundation of the Internet. In fact, each of the different computers connected to the Internet with a system (your home computer, office computer, computer schools and colleges).

Another computer is connected to a computer in different ways. Older computers are connected by a copper cable, fiber-optic cable and some of the (light which send impulses to the data) by any computer that is connected to the wireless Internet connection (wireless connection to wireless which means we understand, it connects via radio waves ) and the computer is connected to the satellite. Thus, we can enjoy the benefits of instant messages, e-mail service, or Mp3 music files are downloaded.

What is the works of  Internet?
Internet job actually very simple, it's just from one place to another place that provides data exchange and, in diameter. The Internet has created a machine that would combine their main functions is to provide data exchange and. In fact can be compared to compare the Internet to the service tunnel.

private service tunnel from one place to another are exchanged. But it does not matter that the letter came from whom or what is written in the letter. It's empty, but the letter does no service tunnel. His job is to deliver the letter to reach the diameter. Internet works the same way.

the Internet service tunnel from one place to another place, it contains a lot of information to convey. And that means if the data is to be completed, then it will be the Internet. You can not send e-mail messages to anyone on the Internet with him, there is no lenadena. However, the data are subject to the same Internet will help in diameter. This formula is based on the exchange of data using the new find we're barrier. When the two European investors, such as Skype, telephone talk, they brought in the nets. They built a program where the data can be exchanged and the conversation continues. But we never talk directly exchanged for Skype calls to be made was not possible to separate the Internet.

How is the data exchanged on the Internet?
Internet works, such as the telephone network. But the data on the Internet to carry telephone lines and call different things. When you ring your phone when you're a friend of a direct connection between you and your friend (or circuit) is open. As long as you are connected to a telephone circuit is opened up. Another telephone is connected to a telephone circuit switching method is called. When listening to the car, and the car will be sent to the electronic control of the telephone exchange system.

But if you look into friends think that, in order to establish a network switching circuit is a really inefficient way. Whenever you connect with your friends on the phone when the line will be able to establish a relationship with someone else. (Remember, anyone you're typing an e-mail, it could take hours to type, and if at this point you can not send mail, but no one ever?) Think you dhiredhire a lot of talking on the telephone or talking or taking a long gap speaking of hanging up the phone and went to a coffee mug. So even when you do not send any data, but still your friends your phone has been connected to the phone. Every second you are being billed for, and talk to you and tell you there is no means to be connected to the phone line, and another that will not be able to call. Therefore, the network might not be ideal in circuit switching. What kind of networks to carry data using the Internet?

Packet switching
To carry Internet data is still sometimes use circuit switching. For example, if you have a dial-up connection (where your computer to a telephone number to dial to reach out to your Internet provider, and it works like a normal phone call) was used to connect to the Internet. He used to come online in the switching circuit. So I can not call you to remain connected. And connect you to have to pay for every second. And rather than just slow the speed of your net connection will not work.

But most of the data on the Internet is a new method is called packet switching. Suppose you want to send e-mail to an Indian friend. So here's your Indian friend and you do not need to be directly connected at once for the entire mail. Mail sent to the packet-switching was later divided into a number of volumes. This is called a block of packets. Each packet is tagged in and they separate their words will go separate ways to travel. When the pieces reach their destination, they were together again, so that it can be displayed as an e-mail.

Packet switching system of the circuit switching method is much more efficient. Sometimes you do not need to be connected at all with anyone. No line at all so you can not stop watching. No one else can use the same lines at the same time. And just as certain packets will be sent to your address. Since the packets are made separately so there is no way to travel is not hampered. As a result, there are a lot of fast speed.

Packet switching How does it work?
Packet switching to understand how it works before you need to understand how that works about switching circuits. Suppose you plan to come to America and made in Bangladesh. Remember that you are not just accessories, but you bring up your building and then see it a nightmare 😛 thinking about the world from one end to the other end has to carry the whole house. So what to do?

First of all, will see a road with which you can easily travel. Then you will need some trucks. And you will need a special ship to cross the sea. Consider how the whole thing became difficult. And so many things to carry with you a few days to go back. Because many slyo your destination will be. If anyone tries to come back the same way, he also will become disturbing. In fact, the circuit switching method works the same way. This is the way it is and telephone calls.

Now imagine another situation. Suppose you took off your building, and each brick was Numbering. Each itake each filled envelopes and sent to a single path to your destination. What was the ship again, maybe no, maybe it was the way the sky. Then, when they reached the bricks together, the total number of bricks will be building up again. Since the bricks has traveled a different road so that the road will not create any congestion. And others will be able to use the same road at the same time.

And this packet-switching system that works. When you e-mail or browser when you browse to a site with a lot of the data packets are divided and spread it on the Internet.

How does computer works in The Internet?
There are hundreds of millions of computers across the Internet. But they do not all work the same. Some of these computers are only collect information and data is sent from somewhere when prompted. The machine is called the server space. The machine is called the file server that can store any document. My e-mail that contains the server that you are, is called the mail server. And that the server is called a web server to record the website. There are a lot of servers on the Internet million.

The data collected from the server computer is called the client computer. When you access the Internet to check e-mail client that your computer, your ISP (Internet Service Providers) comes to the mail server and mail server. Servers on the Internet more than the number of clients, nearly billion or so.

When the two computers to communicate with each other when it has been called pirasa (Peers). If you have photos to share with your friend's instant messaging or the Peer-to-Peer, it (peer-to-peer) (P2P) kamunikesana. P-to-P to your computer sometimes and sometimes behaves as a client server hasebe your computer behaves. Suppose you send photos to your friends, and then worked as a server on your computer (photo seemed to send). And your friend's computer will act as a client (photo access). Again, if you send a photo of your friend's computer will act as a server (the photos seemed to send), and your computer will act as the client (photo access).

In addition to the server and client computers in medium to another is just another part of the Internet. The name of the router. It helps you to connect different systems. If you have more than one computer in your home or at school or in the office, then connect the router to the Internet helps to gather together.

TCP / IP and DNS 
The real issue is no data on the Internet, but it is not easy to carry the envelope brick house. No human data, such as the Internet can not be controlled by you or me. Each day, the nets are numerous data-draft of about 3 billion imeilasa and data downloading and uploading large amounts of traffic across the world's 50 million websites. Now the question is, if these are sent into packets of data values, and if anyone does not have any control on how the packets are not lost, but everyone can be a real destination?

And the answer is TCP / IP (TCP / IP), or Transmission Control Protocol / Internet Protocol. This system allows all the packets to the destination. You can say it two-in-one system. Computer world, "protocol" means a standard that everyone who believes in all things and make sure that it has reached a certainty. Now the question arise in your mind, of course, that the TCP / IP actually works? Let's find out.

Internet Protocol or IP is a common addressing system. All the machines are located on a different IP's mine is yours. Each machine will have a different IP address when the machine can be easily and according to what it is possible to send packets. Enter the IP address is a number of things. And the number of commas or colons can be used separately.

It is a little different websites. Website easy to remember name instead of IP is used. For example (Techubs.Net). DNS or Domain Name Server is the name of the system. The domain name in the browser to enter the IP address of the computer to find out the IP address starts and when the site from the web server is open.

There are basically two types of IP. Another one of the IPv4 and IPv6. IPv4 is the four-volume digits. 12.34.56.78 or as 123.255.212.55. But the rapid Burdhaman internet world today, and there are no IPv4 addresses left. Therefore, the new one has been introduced, which is called IPv6. This is much longer than IPv4. 123a: b716: 7291: 0da2: 912c: 0321: 0ffe: 1da2 the example of IPv6.

Another part of the control system of the Transmission Control Protocol, or TCP. This system determines how an IP packet from another IP to send. And allowing the system to combine packet is received. Once again, the time to send packets back and re-send the packet lost.

Ultimatum
I do not know, the main issue was whether to present in front of you and simply excellent. However, I have tried my maximum. Please comment below to let me know if any issues difficult to understand and Don't forget to share the tune. Thanks


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