These websites contain text pages, digital images, audios, videos, etc. Users can access the content of these sites from any part of the world over the internet using their devices such as computers, laptops, cell phones, etc. The WWW, along with internet, enables the retrieval and display of text and media to your device. These links are electronic connections that link related pieces of information so that users can access the desired information quickly.
Hypertext offers the advantage to select a word or phrase from text and thus to access other pages that provide additional information related to that word or phrase. A particular collection of web pages that belong to a specific URL is called a website, e. So, the World Wide Web is like a huge electronic book whose pages are stored on multiple servers across the world.
Small websites store all of their WebPages on a single server, but big websites or organizations place their WebPages on different servers in different countries so that when users of a country search their site they could get the information quickly from the nearest server.
So, the web provides a communication platform for users to retrieve and exchange information over the internet. Unlike a book, where we move from one page to another in a sequence, on World Wide Web we follow a web of hypertext links to visit a web page and from that web page to move to other web pages. You need a browser, which is installed on your computer, to access the Web. Some people use the terms 'internet' and 'World Wide Web' interchangeably.
They think they are the same thing, but it is not so. Internet is entirely different from WWW. It is a worldwide network of devices like computers, laptops, tablets, etc. It enables users to send emails to other users and chat with them online. For example, when you send an email or chatting with someone online, you are using the internet. But, when you have opened a website like google.
You request a webpage from your computer using a browser, and the server renders that page to your browser. Your computer is called a client who runs a program web browser , and asks the other computer server for the information it needs. He was working at CERN at that time. Originally, it was developed by him to fulfill the need of automated information sharing between scientists across the world, so that they could easily share the data and results of their experiments and studies with each other.
CERN, where Tim Berners worked, is a community of more than scientists from more than countries. These scientists spend some time on CERN site, and rest of the time they work at their universities and national laboratories in their home countries, so there was a need for reliable communication tools so that they can exchange information. Internet and Hypertext were available at this time, but no one thought how to use the internet to link or share one document to another.
So, the objective behind the invention of WWW was to combine recent computer technologies, data networks, and hypertext into a user-friendly and effective global information system. Later, he wrote another proposal in May After a few months, in November , along with Robert Cailliau, it was formalized as a management proposal. This proposal had outlined the key concepts and defined terminology related to the Web. In this document, there was a description of "hypertext project" called World Wide Web in which a web of hypertext documents could be viewed by browsers.
He used a NeXT computer to develop the code for his Web server and put a note on the computer " The machine is a server. During the time he served during CERN. Initially, it was created to meet the need for automated information sharing among scientists worldwide, to make it easy to share the information and results of experiments and studies.
CERN is a network of more than 1, scientists from over countries where Tim Berners has worked. During their research at universities and national laboratories in their home countries, these scientists spend some time on the CERN website so that they have effective communication resources to share knowledge.
At this time the Internet and Hypertext were available, but no one considered how to connect or exchange one of the documents through the Internet. We now understand that WWW is an internet-linked set of websites for the search and sharing of information. When requested by the users, the servers store and transfer web pages or information to the network computers of users.
A web server is a software system that provides a guide to web pages requested by web users. The client is known as the machine of the user requesting documents from a server. The browser built on the computer of the user permits users to access the documents they have found. Web servers hold all the websites. They are sometimes dropped or corrupted, and it's easier to replace small chunks when this happens.
Additionally, the packets can be routed along different paths, making the exchange faster and allowing many different users to download the same website at the same time. If each website was sent as a single big chunk, only one user could download it at a time, which obviously would make the web very inefficient and not much fun to use. Street photo: Street composing , by kevin digga.
Previous Overview: Getting started with the web How the web works provides a simplified view of what happens when you view a webpage in a web browser on your computer or phone.
A simplified diagram of how they interact might look like this: Clients are the typical web user's internet-connected devices for example, your computer connected to your Wi-Fi, or your phone connected to your mobile network and web-accessing software available on those devices usually a web browser like Firefox or Chrome.
Servers are computers that store webpages, sites, or apps. 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.
In addition to the client and the server, we also need to say hello to: Your internet connection : Allows you to send and receive data on the web. It's basically like the street between your house and the shop. This is like the transport mechanisms that let you place an order, go to the shop, and buy your goods.
In our example, this is like a car or a bike or however else you might get around. The web works on a client-server model.
The client which is your Computer, more specifically the browser you are using, sends a request to the Server to fetch the page you have entered in the address bar of the browser. So if you will put www. But if you put www.
So the client sends the request and the Server returns the web page as response and hence it is also called the Request-Response model.
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