What is web?

World Wide internet that is additionally referred to as an internet, could be an assortment of web site or web pages hold on in web servers and connected to native computers through the net. These websites contain text pages, digital pictures, audios, videos, etc. Users will access the content of those sites from any a part of the globe over the net persecution their devices like computers, laptops, cell phones, etc. The WWW, in conjunction with web, allows the retrieval and show of text and media to your device.

The building blocks of the net square measure sites that square measure formatted in markup language and connected by links referred to as “hypertext” or hyperlinks and accessed by hypertext transfer protocol. These links square measure electronic connections that link connected items info so that users will access the specified information quickly. Machine-readable text offers the advantage to pick a word or phrase from text and so to access alternative pages that give extra info associated with that word or phrase.

A web page is given an internet address referred to as a Uniform Resource Locator (URL). A selected assortment of sites that belong to a particular address is termed a web site, e.g., www.facebook.com, www.google.com, etc. So, the World Wide Web is sort of a vast electronic book whose pages square measure holds on multiple servers across the globe. Small websites store all of their Web Pages on one server, however huge websites or organizations place their Web Pages on totally different servers in numerous countries so once users of a rustic search their website they might get the knowledge quickly from the closest server.

So, the net provides a communication platform for users to retrieve and exchange info over the net. In contrast to a book, wherever we have a tendency to move from one page to a different in a very sequence, on World Wide Web we have a tendency to follow an internet of machine-readable text links to go to an internet page and from that web content to maneuver to alternative sites. You wish a browser that is put in on your laptop, to access the net

All web version is describe below

Web 1.0

The first iteration of the online represents the online 1.0, which, consistent with Berners-Lee, is that the “read-only net.” In alternative words, the first net allowed United States of America to go looking for data and browse it. There was little within the approach of user interaction or content generation. The first iteration of the online represents the online 1.0, which, consistent with Berners-Lee, is that the “read-only net.” This was what most web site house owners needed. They required an internet site to form their data obtainable to anyone at any time. I decision this “brick-and-mortar thinking applied to the online.” the online as a full hasn’t rapt a lot of on the far side this stage.

Web 2.0

We are currently seeing the infancy of net 2.0, or the “read-write” net as Berners-Lee represented it. It’s the flexibility to contribute content and act with alternative net users. It’s dramatically modified the landscape of the online in an exceedingly short time. It’s a lot of potential. As examples, scrutinize YouTube and MySpace that accept user submissions? Net 2.0 may be a welcome response to net users United Nations agency need to participate within the data. There are several definitions of a “web two.0 application.” for instance, there’s the perception that simply because an internet site is constructed employing a sure technology (such as Ruby on Rails) or employs Ajax in its interface, it represents net two.0. However that’s not essentially the case. Web 2.0, for laypeople, merely needs that users will act or contribute content.

Web 3.0

This leads United States of America to net three.0 (extending the imprecise nomenclature). By extrapolating Tim Berners-Lee’s explanations, web 3.0 are “read-write-execute.” this can be troublesome to see in its abstract type. As an example, take into account linguistics markup and net services. Semantic markup refers to the communication gap between humans and processed applications. one amongst the most important challenges of presenting data on the online is that applications cannot offer context to knowledge and, therefore, can’t perceive what’s relevant. Through the employment of some linguistics markup (or knowledge interchange formats), knowledge might be place in an exceedingly type not solely accessible to humans via linguistic communication however able to be understood and taken by code applications also. While it’s still evolving, this notion — data format knowledge to be understood by code agents — results in the “execute” portion of the online three.0 definitions. A web service is code that supports computer-to-computer interaction over the web. net services don’t seem to be new and frequently take the shape of associate application programming interface. The popular photography-sharing web site Flickr provides an internet service whereby developers will programmatically interface to go looking for pictures. There are thousands of net services. Combining linguistics markup and net services will turn out a web 3.0 expertise — applications that may speak to every alternative directly and interpret data for humans?

Difference between World Wide Web and Internet:

Some individuals use the terms ‘internet’ and ‘World Wide Web’ interchangeably. They assume they’re a similar issue, however it’s not thus. net is entirely totally different from WWW. it’s a worldwide network of devices like computers, laptops, tablets, etc. It permits users to send emails to alternative users and chat with them on-line. as an example, once you send Associate in Nursing email or chatting with somebody on-line, you’re victimization the net.

But, once you have opened an internet site like google.com for data, you’re victimization the globe Wide Web; a network of servers over the net. You request a webpage from your pc employing a browser, and also the server renders that page to your browser. Your pc is termed a shopper WHO runs a program (web browser), and asks the opposite pc (server) for the data it desires.

History of the World Wide Web:

The World Wide internet was fancied by a British somebody, Tim Berners-Lee in 1989. He was engaging at CERN at that point. Originally, it absolutely was developed by him to meet the necessity of automatic info sharing between scientists across the planet, in order that they may simply share the information and results of their experiments and studies with one another.

CERN, wherever Tim Berners worked, may be a community of quite 1700 scientists from quite one hundred countries. These scientists pay it slow on CERN web site, and remainder of the time they work on their universities and national laboratories in their home countries, therefore there was a necessity for reliable communication tools in order that they’ll exchange info.

Internet and machine-readable text were out there at now, however nobody thought a way to use the net to link or share one document to a different. Tim centered on 3 main technologies that might create computers perceive one another, HTML, URL, and HTTP. So, the target behind the invention of web was to mix recent pc technologies, information networks, and machine-readable text into a easy and effective world system.