2015-09-06
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A markup language is a language that annotates text so that the computer can manipulate the text. For example, with HTML, XML, and XHTML, the markup tags are < and >.
HTML or HyperText Markup Language is the language of the web. HTML defines the way that images, multimedia, and text are displayed in web browsers. It includes elements to connect your documents (hypertext) and make your web documents interactive (such as with forms).HTML is a defined standard markup language. That standard was developed by the World Wide Web Consortium (W3C). It is based upon SGML (Standard Generalized Markup Language). It is a language that uses tags to define the structure of your text. Elements and tags are defined by the < and > characters.
XML—eXtensible Markup Language:
The eXtensible Markup Language is the language that another version of HTML is based on. Like HTML, XML is also based off of SGML. It is less strict than SGML and more strict than plain HTML, and provides the extensibility to create various different languages.
XML is a language for writing markup languages. For example, if you are working on genealogy, you might create tags using XML to define the father, mother, daughter, and son in your XML like this: <father> <mother> <daughter> <son>. There are also several standardized languages already created with XML: MathML for defining mathematics, SMIL for working with multimedia, XHTML, and many others.
