It creates your timeline based on your friends’ activities, your previous requests, updates from pages you follow and relevant advertisements exclusively created for you. Based on your username and password, the Facebook server identifies you. However, this HTML content is exclusively created for you. When you access your Facebook timeline, the Facebook server sends your computer a website coded in HTML. The development of these websites is pretty simple and straightforward. While requesting the above website, every user in the world will get the same HTML content. It always stays the same for every user who accesses the website. The websites that we use on our everyday basis can broadly be classified into two types.Ī Static Website has fixed content coded in HTML and stored on a web server. Basically, an HTML file consists of content and instructions to display the content. The response from the server to the client is in a special markup language that can be understood by the browser, known as HTML – HyperText Markup Language. Here the request is to fetch the home page of the website. The client computers make use of special software applications to communicate with servers and the most common applications are our well-known browsers like ‘Google Chrome’, ‘Mozilla Firefox’, Opera, Safari etc., When you type the address like in the address bar of the browser and hit the ‘enter’ button, a request is sent from the client computer to the server.

These request and response communications occur through a well-defined set of rules called ‘HTTP’ protocols. We can define a Client as a computer that can make a ‘request’ to a remote computer, and a Server as a computer that has the capability to understand the request and send a ‘response’ to the client. Both of them are computers in general, and they are connected via the internet. The above figure illustrates the client and server. The requests are nothing but our requirement for information from our local computers. When we go through the timelines of our social media websites or make our favourite purchase on the e-commerce website, or search for something in Google, we use the term ‘Server’ to refer to the remote entity which responds to all our ‘requests’. Programmer working in a software develop company office.

Developing programming and coding technologies.

Servlet program for a login page