World Wide Web (WWW) (2023)

World Wide Web (WWW) (1)


World-Wide Web (also called WWW or W3) is a hypertext-based information system. Any word in a hypertext document can be specified as a pointer to a different hypertext document where more information pertaining to that word can be found. The reader can open the second document by selecting the word (using different methods depending on the interface; in a mouse based system, a user would probably place the mouse over the word and click the mouse button); only the part of the linked document which contains relevant information will be displayed.

The second document may itself contain links to further documents. The reader need not know where the referenced documents are, because they will be obtained and presented as they are needed.

World-Wide Web uses hypertext over the Internet: the linked documents may be located at different Internet sites. WWW can handle different text formats and different methods of organizing information.

The World-Wide Web also provides access to many of the other tools described in this guide, and is becoming widely used as the major means of access to Internet resources.

Special index documents have been created in the WWW information space and these can be searched for given keyword(s). The result is a new document which contains links to documents selected from the index.

If you were reading this document on a hypertext system, instead of this all too short explanation about hypertext, you would have a selectable pointer to a complete hypertext information web with examples and more pointers to other definitions. For instance, in the first document you might read:

The WorldWideWeb (W3) is the universe of network-accessible information, an embodiment of human knowledge. It is an initiative started at "CERN", now with many participants. It has a body of software, and a set of protocols and conventions. W3 uses "hypertext" and multimedia techniques to make the web easy for anyone to roam browse, and contribute to.

Selecting hypertext would display the following explanation for you:

(Video) What is the world wide web? - Twila Camp


Hypertext is text which is not constrained to be linear. Hypertext is text which contains "links" to other texts. The term was coined by "Ted Nelson" around 1965 (see "History").

HyperMedia is a term used for hypertext which is not constrained to be text: it can include graphics, video and "sound", for example. Apparently Ted Nelson was the first to use this term too.

Then you could learn more about links and Ted Nelson. The links in WWW are not confined to text only, so the term hypermedia is more accurate - for example, the link to Ted Nelson might point to a file containing a picture of Ted Nelson. The picture would be displayed on your screen, if your computer had a suitable screen and an image viewer.

Who can use WORLD-WIDE WEB?

You must be on the international TCP/IP network (the Internet) in order to use a client on your computer to access WWW. If you are on the Internet, but don't have a WWW client on your computer, you can still enter the World-Wide Web because several sites offer public interactive access to WWW clients (see the Remote clients section under How to get to World-Wide Web below).

If you have e-mail access only, or if you are not on the Internet, then you can not fully exploit the vast potential of WWW. However, a mail-robot is available at the address: which gives e-mail access to WWW-accessible files. (see E-mail access section under How to get to World-Wide Web below).

How to get to WORLD-WIDE WEB

Users access the World-Wide Web facilities via a client called a browser, which provides transparent access to the WWW servers. If a local WWW client is not available on your computer, you may use a client at a remote site: this can be an easy way to start using WWW.

Local clients

Use of a local client is encouraged since it will provide better performance and better response time than a remote client.

Public domain clients for accessing WWW servers are available for: Macintosh, MS-DOS, VMS, VM/CMS, MVS, NeXT, Unix, X-Windows. All these platforms support a simple line mode browser. In addition, graphical clients are available for: Macintosh, Windows, X-Windows, NeXT and Unix. See the list of freely available client software in Appendix A.

Remote clients

To access a remote WWW client, telnet to the client site. If you are new to WWW, you should telnet to No login is needed for this, and you will immediately enter the WWW line mode browser.

(Video) Tim Berners-Lee: How This Guy Invented the World Wide Web 30 Years Ago

Some publicly accessible clients have been locally developed. Most remote clients are at sites with WWW servers holding information on specific areas. Telnet to the client site, and at the login: prompt enter www; no password is needed. The following remote client sites are available:

+------------------------------------------------------------------+| || Site Country Server Specialization || |+------------------------------------------------------------------+| Finland || Israel Environment || Switzerland (CERN) High-energy physics || USA Law || USA History || USA |+------------------------------------------------------------------+
Using CERN as the entry point you will find information about WWW itself, with an overview of the Web and a catalogue of the databases sorted by subject.

E-mail access

You can obtain WWW files via mail to using a SEND command. The SEND command returns the document with the given WWW address, subject to certain restrictions. Hypertext documents are formatted to 72 character width, with links numbered. A separate list at the end of the file gives the document-addresses of the related documents. A good file to start with would be:

Note that, despite the name listserv in the address of this mailrobot, it is not a LISTSERV server.A note of caution from the WWW developers and maintainers:As the robot gives potential mail access to a *vast* amount of information, we must emphasise that the service should not be abused.

Examples of appropriate use would be:

  • Accessing any information about W3 itself;
  • Accessing any CERN and/or physics-related or network development related information;

Examples of INappropriate use would be:

  • Attempting to retrieve binaries or tar files or anything more than directory listings or short ASCII files from FTP archive sites;
  • Reading Usenet newsgroups which your site doesn't receive;
  • Repeated automatic use.

There is currently a 1000 line limit on any returned file. We don't want to overload other people's mail relays or our server. We reserve the right to withdraw the service at any time. We are currently monitoring all use of the server, so your reading will not initially enjoy privacy.


The W3 team at CERN (


The line mode browser:

The line mode browser is a simple user interface: references are shown as a number in square brackets next to each referenced word. Type the number and hit the RETURN key to follow a reference. For example, here is the beginning of the Subject Catalogue on the CERN server:

The World-Wide Web Virtual Library: Subject Catalogue


This is a distributed subject catalogue. See also arrangement byservice type[1], and other subject catalogues of network information[2].

(Video) PRO8L3M - World Wide Web

Mail to maintainers of the specified subject or to add pointers to this list, or if you would like to contribute to administration of a subject area.

See also how to put your data on the web[3]

  • Aeronautics Mailing list archive index[4]. See also NASA
  • LaRC[5]
  • Agriculture See Agricultural info[6], Almanac mail servers[7] the Agricultural Genome[8] (National Agricultural Library, part of the U.S. Department of Agriculture)
  • Archaeology[9] Separate list
  • Astronomy and Astrophysics[10]
  • Separate list.
  • 1-64, Back, for more, Quit, or Help:

To access WWW with the line mode browser, type: www. The default first document will appear on your screen. From this point, you should be able to navigate through the WWW universe by reading the text and following the instructions at the bottom of the screen. If you want to start with a document other than the default, or if you want to change some other aspect of the usual interaction, a number of command line parameters and options are available. The full format of the www command to invoke the line mode browser is:

+---------------------------------------------------------------+| || www [options] [docaddress] [keyword>] || |+---------------------------------------------------------------+

where: docaddress is the hypertext address of the document at which you want to start browsing.keyword the supplied keyword(s) are used to query the index specified by docaddress. A list of matching entries is displayed. Multiple keywords are separated by blanks.

Options are:

  • -n non-interactive mode. The document is formatted and displayed to the screen. Pages are delimited with form feed characters (FF).
  • -listrefs adds a list of the addresses of all document references to the end. Non-interactive mode only.
  • -pn sets the page length to n lines. Without a number, makes the page length infinite. Default is 24.
  • -wn sets the page width to n columns. The default is 78, 79 or 80 depending on the system.
  • -na hides references in the text. Useful when printing out the document .
  • -version displays the version number of the software.

The following commands are available when using a line mode browser either as a local client or as a remote client. Some are disabled when not applicable (e.g. Find is enabled only when the current document is an index). CAPITAL letters indicate acceptable abbreviation; angle brackets ([]) indicate an optional parameter.

  • Help gives a list of available commands depending on the context, and the hypertext address of the current document.
  • Manual displays the on-line manual.
  • Quit exits WWW.
  • number type in one of the numbers shown in [] and hit the RETURN key to follow the link associated to the reference.
  • RETURN hit the RETURN key to display the next page of the current document (without a reference number).
  • Up, Down scrolls up or down one page in the current document.
  • Top, BOttom goes to the top or the bottom of the current document.
  • Back, HOme goes back to the first document you were reading.
  • Next, Previous goes to the next or previous document in the list of pointers from the document that led to the current one.
  • List gives a numbered list of the links from the current document. To follow a link, type in the number.
  • Recall if number is omitted, gives a numbered list of the documents you have visited.
  • To display one specific document, re-issue the command with number.
  • (Find) keyword queries the current index with the supplied keyword(s). A list of matching entries is displayed with possible links to further details. Find can be omitted if the first keyword does not conflict with another WWW command. Multiple keywords are separated by blanks.
  • Go docaddress goes to the document represented by the given hypertext address, which is interpreted relative to the current document.

Extra command available on Unix versions only:

  • Print prints the current document, without the numbered document references. The default print command is lpr, but it may be defined in your local working environment by the variable WWW_PRINT_COMMAND.

Other interfaces:

When using a graphical interface, you access the WWW functions by pressing mouse buttons. Words are highlighted or underlined to indicate where a link exists. To follow a link, click on the word.

The most famous graphical interface is Mosaic, which is the state-of-the-art point and click interface. As a WWW browser, Mosaic displays images and plays sounds, with the help of local utilities. The navigation within the web is intuitive and additional features (mailing feedback, customizing, etc.) are easy to use. Mosaic also provides an interface to the other information systems (WAIS, Gopher, etc.) thus giving access to all Internet resources from a single interface. Implementations for Macintosh, MS-Windows and X-Windows are available for anonymous FTP from in the directory /Web.

A good alternative for users without a graphical environment is Lynx. Lynx is a full screen browser for WWW using arrows and tab keys, cursor addressing and highlighted or numbered links to navigate within the web. Lynx has no image or sound capabilities: any images or sounds are replaced by a tag at display time and the corresponding files can be retrieved separately. Unlike the line mode browser, documents containing embedded images or enhanced document formats (e.g. formulaires) are handled properly by Lynx. A demonstration version of Lynx is available using Telnet to (login as www). Implementations for various Unix flavors and for VMS are available for anonymous FTP from in the directory /pub/WWW/lynx.


WWW gives you access to an information universe. Let's say you want to know how many film versions of The Three Musketeers have been made. You browse The WWW Virtual Library and select Movies:

(Video) Chris Webby - World Wide Web (prod. JP On Da Track)

-----------------------------------------------------------------Cardiff's Movie Database Browser.

CARDIFF'S MOVIE DATABASE BROWSER.UK Postal Quiz [1] There's now a way to set permanent[2] links to specific names and titles.Movie title substring searching.[3] (for non-forms browsers) Movie people substring searching.[4] (for non-forms browsers)Lookup titles by genre.[5] (uses plot summary info. 652 titles so far, many more on the way)List my votes[6]. If you've voted for movies, your votes are here.On this day in history..[7](who was born and who died)The rec.arts.movies top 40 films[8] and bottom 40 films.[9]Top 20[10]s of busy people. Famous marriages.[11] 1-18, Up, for more, Quit, or Help: 3

You select Movie titles, and then type three musketeers as keywords:

Movie Info (27/27)Example, to search for movies with the word ``alien'' in their title, type ``alien''.

This will return details on several movies, including AliensNote: if the title begins with A or The, leave it out. If you're determined to include it, then put ', A' or ', The' at the end of the of the substring e.g.Enforcer, TheGauntlet, TheSearching is case insensitive.[1]Rob.H[2] , 1-2, Back, Up, Quit, or Help: three musketeers-----------------------------------------------------------------You find that there have been seven film versions of the story:-----------------------------------------------------------------Movie InfoTITLE SUBSTRINGS.Here are the results from the search for three musketeersThree Musketeers, The (1921)[1]Three Musketeers, The (1933)[2]Three Musketeers, The (1935)[3]Three Musketeers, The (1939)[4]Guide to Network Resource Tools page 23-----------------------------------------------------------------Three Musketeers, The (1948)[5]Three Musketeers, The (1974)[6]Three Musketeers, The (1993)[7]I haven't found the item you wanted ?, why ?[8] Note titles in quotes (") are TV series.[9]Rob.H[10] , 1-10, Back, Up, Quit, or Help: 1-----------------------------------------------------------------You decide to look for more information on the 1921 version:-----------------------------------------------------------------Movie InfoMOVIE DETAILS.THREE MUSKETEERS, THE (1921)1921Cast Leon Barry[1] ......AthosCharles Belcher[2] ......BernajouxNigel De Brulier[3] ......Cardinal RichelieuMarguerite De La Motte[4] ......Constance BonacieuxDouglas Fairbanks[5] ......D'ArtagnanSidney Franklin[6] ......Monsieur BonacieuxThomas Holding[7] ......Duke of BuckinghamBoyd Irwin[8] ......Comte de RochefortBarbara La Marr[9] ......Milady de WinterMary MacLaren[10] ......Queen Anne of AustriaAdolphe Menjou[11] ......Louis XIIIEugene Pallette[12] ......AramisLon Poff[13] ......Father JosephWillis Robards[14] ......Captain de TrevilleGeorge Siegmann[15] ......PorthosCharles Stevens[16] ......Planchet1-37, Back, Up, for more, Quit, or Help: 11-----------------------------------------------------------------

You're hooked! You decide to look for more information on Adolphe Menjou, search more titles, find Oscar winners, etc.

Learning more about WORLD-WIDE WEB

World-Wide Web is being developed at CERN (European Particle Physics Laboratory) by the World-Wide Web team led by Tim Berners-Lee. Bug reports, comments, suggestions, etc. should be mailed to:

On-line documentation is available from, for anonymous FTP or using the remote WWW client.

Mailing lists:
To subscribe send a mail to
Usenet newsgroup: comp.infosystems.www

Mosaic is being developed at NCSA (National Center for Supercomputing Applications), Urbana Champain, Illinois, by Marc Andreessen and Eric Bina. Bug reports, comments, suggestions, etc. should be mailed to: mosaic@ncsa.uiuc.eduOn-line documentation is available from, for anonymous FTP, or from, using a WWW client.

Lynx is being developed at the University of Kansas by Lou Montulli.On-line documentation is available from, for anonymous FTP, or from, using a WWW client.

Netscape, however, is the clear winner a year or more after this was written. It is the new standard that everyone is forced to write for and has made its inventor the youngest new billionaire for making it accessible to almost everyone. Isn't it nice to know that you don't have to know very much of this FAQ to use the WWW today?

(Video) It's the World Wide Web


What is World Wide Web explain? ›

The World Wide Web—commonly referred to as WWW, W3, or the Web—is an interconnected system of public webpages accessible through the Internet. The Web is not the same as the Internet: the Web is one of many applications built on top of the Internet.

What is WWW and example? ›

The World Wide Web -- also known as the web, WWW or W3 -- refers to all the public websites or pages that users can access on their local computers and other devices through the internet. These pages and documents are interconnected by means of hyperlinks that users click on for information.

Who invented the World Wide Web WWW? ›

World Wide Web

What is WWW in HTML? ›

The World Wide Web (WWW) is a network of online content that is formatted in HTML and accessed via HTTP. The term refers to all the interlinked HTML pages that can be accessed over the Internet.

What kind of information can you find in the World Wide Web? ›

Global search engines are the overall key to success. With a basic knowledge of the structure of Web addresses, it becomes easy to understand and even guess them. Information about people, bibliographical information, subject resources, software and electronic mail lists can easily be found on the Web.

What is difference between WWW and Internet? ›

The world wide web, or web for short, are the pages you see when you're at a device and you're online. But the internet is the network of connected computers that the web works on, as well as what emails and files travel across.

What are the benefits of the WWW? ›

- Availability of information that is you are able to access information from anywhere and also makes friends from across the globe. - Reduces the cost of divulgation. - Rapid interactive communication which can be used for different services.

What are the two uses of WWW? ›

The Web or WWW (World Wide Web) is an information system that access information over the internet. It is used as a service to retrieve information from a user by using a client-server architecture. It is an information system that is accessed by using a web browser and a web server.

Who controls the World Wide Web? ›

No one person, company, organization or government runs the Internet. It is a globally distributed network comprising many voluntarily interconnected autonomous networks. It operates without a central governing body with each constituent network setting and enforcing its own policies.

Who runs the World Wide Web? ›

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.

What happens when you click WWW? ›

Your browser takes that URL, breaks out the name of the web site, and then uses the Domain Name System (DNS) to get an Internet Protocol (IP) address for the site. Your browser then opens a Transmission Control Protocol (TCP) connection to the web site over IP.

How do we access WWW? ›

Users access the World-Wide Web facilities via a client called a browser, which provides transparent access to the WWW servers. If a local WWW client is not available on your computer, you may use a client at a remote site: this can be an easy way to start using WWW.

What happens when we type WWW? ›

Browser looks up IP address for the domain. Browser initiates TCP connection with the server. Browser sends the HTTP request to the server. Server processes request and sends back a response.

What are 4 features of the World Wide Web? ›

The world wide web provides features like HyperText Information System, Cross-Platform, Distributed, open standards, open-source, etc.

What is WWW and its important features? ›

The World Wide Web is abbreviated as WWW and is commonly known as the web. The WWW was initiated by CERN (European library for Nuclear Research) in 1989. WWW can be defined as the collection of different websites around the world, containing different information shared via local servers(or computers).

What do I need to get information from the WWW? ›

A Browser. A browser is a computer program that enables you to use the computer to view WWW documents and access the Internet taking advantage of text formatting, hypertext links, images, sounds, motion, and other features. Netscape and Internet Explorer are currently the leading "graphical browsers" in the world.

Is www still used? ›

Do You Need WWW in URLs? It's actually not necessary to use WWW in URLs. It exists for just one purpose—to identify the web address. This is not the case with other important URL signifiers, such as a File Transfer Protocol (FTP) server (ftp) or news server (news).

How is Web 1.0 Web 2.0 and web 3.0 different from each other? ›

Web 1.0 is the "read-only Web," Web 2.0 is the "participative social Web," and Web 3.0 is the "read, write, execute Web." This Web interaction and utilization stage moves users away from centralized platforms like Facebook, Google, or Twitter and towards decentralized, nearly anonymous platforms.

Is www a browser? ›

"World Wide Web" or simple "Web" is the name given to all the resources of internet. The special software or application program with which you can access web is called "Web Browser". Search Engine is an application that allows you to search for content on the web.

What are WWW services? ›

A web service is a software system that supports interoperable machine-to-machine interaction over a network. It has an interface described in a machine-processable format (specifically, web Service Definition Language, or WSDL). web services fulfill a specific task or a set of tasks.

Is WWW an example of Internet? ›

The key difference between the Internet and the World Wide Web (WWW or the Web) is that the Internet is a global connection of networks while the Web is a collection of information that can be accessed using the Internet. In other words, the Internet is the infrastructure and the Web is a service on top.

What is WWW What are the example of Web browser? ›

"A web browser, or simply 'browser,' is an application used to access and view websites. Common web browsers include Microsoft Edge, Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari.

Which is an example of an URL? ›

URL is an acronym for Uniform Resource Locator and is a reference (an address) to a resource on the Internet. A URL has two main components: Protocol identifier: For the URL , the protocol identifier is http . Resource name: For the URL , the resource name is .

What are WWW addresses? ›

What is a Web Address? The web address contains information about the location of the webpage. It is also known as the URL (uniform resource locator). Like the address for your home, a web address organizes information about a webpage's location in a predictable way.

Is WWW a browser? ›

"World Wide Web" or simple "Web" is the name given to all the resources of internet. The special software or application program with which you can access web is called "Web Browser". Search Engine is an application that allows you to search for content on the web.

How is WWW connected? ›

The WWW, along with internet, enables the retrieval and display of text and media to your device. The building blocks of the Web are web pages which are formatted in HTML and connected by links called "hypertext" or hyperlinks and accessed by HTTP.

Is WWW a Web address? ›

WWW stands for World Wide Web, and it's used mostly as a prefix. However, it does indicate that a given website uses HTTP to communicate. The main difference between WWW and HTTP is that they refer to different concepts.

What is a WWW search engine? ›

July 2021) A search engine is a software system designed to carry out web searches. They search the World Wide Web in a systematic way for particular information specified in a textual web search query.

What is WWW explain types of web browser? ›

On the Web, when you navigate through pages of information, this is commonly known as web browsing or web surfing. There are four leading web browsers − Explorer, Firefox, Netscape, and Safari, but there are many others browsers available. You might be interested in knowing Complete Browser Statistics.

Is Google an URL? ›

Some of Google's URLs include,, and Just as buildings and houses have a street address, webpages also have unique addresses to help people locate them. On the Internet, these addresses are called URLs (Uniform Resource Locators).

Is Facebook a URL? ›

Your Facebook URL is simply the name of your page placed right after the web address of Facebook. This means that if your page is named – xyz then your Facebook URL would look like –

Why www is not used anymore? ›

The reason we stopped using “www” before our URLs is simply because it's not needed. Most people are only trying to view the HTML version of a website, so accessing the W3 has become default.

What is the difference between www and https? ›

The only difference between the two protocols is that HTTPS uses TLS (SSL) to encrypt normal HTTP requests and responses, and to digitally sign those requests and responses.


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