History of the Web

What technologies contributed to the success of the WWW?



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TECHNILOGIES which gives conribution to the succss of WWW are:

(Standard Generalized Markup Language) An ISO standard for defining the format in a text document. Widely used in the publishing industry, an SGML document uses a separate Document Type Definition (DTD) file that defines the format codes, or tags, embedded within it. Since SGML describes its own formatting, it is known as a "meta-language." SGML is a very comprehensive language that also includes hypertext links. HTML is an SGML document that uses a fixed set of tags, while XML is a simplified version of SGML.

(EXtensible Markup Language) An open standard for describing data from the W3C. It is used for defining data elements on a Web page and business-to-business documents. XML uses a similar tag structure as HTML; however, whereas HTML defines how elements are displayed, XML defines what those elements contain. While HTML uses predefined tags, XML allows tags to be defined by the developer of the page. Thus, virtually any data items, such as "product," "sales rep" and "amount due," can be identified, allowing Web pages to function like database records. By providing a common method for identifying data, XML supports business-to-business transactions and has become "the" format for electronic data interchange and Web services

(HyperText Markup Language) The document format used on the Web. Web pages are built with HTML tags (codes) embedded in the text. HTML defines the page layout, fonts and graphic elements as well as the hypertext links to other documents on the Web. Each link contains the URL, or address, of a Web page residing on the same server or any server worldwide, hence "World Wide" Web.HTML 2.0 was defined by the Internet Engineering Task Force (IETF) with a basic set of features, including interactive forms capability. Subsequent versions added more features such as blinking text, custom backgrounds and tables of contents. However, each new version requires agreement on the tags used, and browsers must be modified to implement those tags

RSS (an abbreviation for Really Simple Syndication) is a family of webfeeds formats used to publish frequently updated works-such as blog entries, news headlines, audio, and video-in a standardized format An RSS document (which is called a "feed", "web feed" or "channel") includes full or summarized text, plus metadata such as publishing dates and authorship. Web feeds benefit publishers by letting them syndicate content automatically. They benefit readers who want to subscribe to timely updates from favored websites or to aggregate feeds from many sites into one place.

The technologies that contribite to success of the World Wide Web includes: SGML, XML, HTML, and RSS.