Tagged Languages

1. HTML - HyperText Markup Language

   HTML is a tagged, structured language, designed to deliver text in reasonable formats without the author doing a lot of formatting.

   HTML tags are defined - any tags you enter that are not specified by the HTML DTD will not be rendered by the browser for client viewing.

2. DTD - Document Type Definition

   A tagged language used to define a set of HTML pages by defining a specific tag structure and values. A DTD is used to ensure that a specific page has the properties specified for the page set governed by the DTD.

3. CSS - Cascading Style Sheets

   Not a tagged language - a file with a set of rules for formatting HTML code.

4. XML - eXtensible Markup Language

   a tagged language with user defined tags, used to model data.

5. XML Schema

   an XML document with tags designed to specify the structure of other XML documents. Schemas define sets of XML documents, e.g., documents for medical data or web pages.

6. XSL - eXtensible Stylesheet Language
   
   
   • XSLT, XSLF, XPath
7. VML - Vector Markup Language
8. mathML - mathematics Markup Language