How does web works?

#webdev #productivity #beginners #github

Clients and servers

Computers connected to the internet are called clients and servers. A simplified diagram of how they interact might look like this

When a client device wants to access a webpage, a copy of the webpage is downloaded from the server onto the client machine to be displayed in the user's web browser.
The the client sends a HTTP (Hypertext transper Protocol i.e it defines a langauge for client and server to speak each other)

So what happens, exactly?

The browser sends an HTTP request message to the server, asking it to send a copy of the website to the client (you go to the shop and order your goods). This message, and all 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, the server sends the client a "200 OK" message, which means "Of course you can look at that website! Here it is", and then starts sending the website's files to the browser as a series of small chunks called data packets (the shop gives you your goods, and you bring them back to your house).
The browser assembles the small chunks into a complete web page and displays it to you (the goods arrive at your door — new shiny stuff, awesome!).

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