Archive for May 2014

So far we have learned that when we navigate the internet, browsers make requests to a web server and the servers send back a response. Today we are going to learn how these requests and responses are transmitted. Have you noticed that web addresses (also called URLs) often begin with “http://” or “https://”? Use the…

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…

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…