Question

Explain briefly the following :

(i)  HTML

(ii)  XML

(iii)  DHTML

Answer 1

HTML :

• Stands for Hyper Text Markup Language.
• Used to design the layout of a document and to specify the hyperlinks.
• Tells the browser how to display text, pictures and other support media.
• Support multimedia and new page layout features.
• Provides many tags for control the presentation of information on the web pages, such as , etc.

 XML:

• Stands for eXtensible Markup Language.
• A markup language is a mechanism to identify structure in a document. 
• XML defines a standard way to add markup to documents.  Provides an ability to define tags and the structural relationship between them. 
• All of the semantics of an XML document will either be defined by the application that process them or by style sheets. 

DHTML :

• Stands for Dynamic HTML.
• DHTML refers to web content that changes each time it is viewed. For example, graphic can move from one location to another, in response to user action, such as mouse click.  
• Enable a web page to react to user input without sending request to web server. 
• Used to describe the combination of HTML, style sheets and scripts that allow document to be animate