HTML
HTML, or Hypertext Markup Language, is
a formatting language used to create web
pages and documents. HTML consists of
sets of codes (called tags) that are used
to control the way a document is
displayed by a web browser, such as
Netscape Navigator/Communicator or
Microsoft Internet Explorer. A document
that is formatted using HTML tags — such
as the page you're viewing now — is
called an HTML document.