The Internet is a worldwide network of networks that uses the Internet protocol suite. It is a large network of computers that communicate with each other. When you type a web address into your browser, several steps occur to make the Internet work:
- The browser goes to the DNS server and finds the real address of the server that the website lives on. This is similar to finding the address of a shop.
- The browser sends an HTTP request message to the server, asking it to send a copy of the website to the client. This message, along with other data sent between the client and the server, is sent across your internet connection using TCP/IP.
- If the server approves the client’s request, it sends a “200 OK” message to the client, which means “Of course you can look at that website! Here it is.” Then, the server starts sending the website’s files to the browser as a series of small chunks called data packets. This is similar to the shop giving you your goods, and you bringing them back to your house.
- The browser assembles the small chunks into a complete web page and displays it to you. This is similar to the goods arriving at your door.
In summary, the Internet is a way to connect computers together and ensure that they stay connected. It allows for the exchange of information between computers across the globe.
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