How do web browsers work?

When you navigate to a website, your browser makes a request to the server that hosts the website. Depending on what is contained in that request the server sends back different content in the response. This request/response cycle is the basis of all websites. Use the buttons below to navigate through the lesson You can…

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What is the internet?

The internet is a network of computers which spans the entire world. The internet is a decentralized network – in other words, every computer connected to it is treated the same. There are no special internet servers which control the whole internet, but some servers have a special role which we will discuss in later…

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