What is HTML? Explain the meaning of each word in html also give advantage and limitation of HTML.



HTML
HTML stands for Hypertext Markup Language. It was created by Tim Berners-Lee at CERN, the European Laboratory for Particle Physics in Geneva. It was later modified to act as a universally under stood language.
HTML simplified subset of a more general markup language called SGML (Standard Generalized markup language) that is a Meta language which is used to create markup language that are of different application domain. HTML is a special formatting language that defines the appearance and contents of a web page. Its specific syntax rules allow you to define the placement and format of text, graphics, sound and videos on the webpage. It is extremely simple and requires no knowledge of programming in its basic form. HTML is one of the most commonly used interface language used now a days for the web.  
Each word in HTML has a special meaning.

·        The word Hypertext refers to the text which acts as a link. You can jump to any webpage on the Internet by simply clicking at the text at the text which acts as a link.
·        The word Markup refers to the symbols or sequence of characters added to the ordinary text to define the structure of the text. It can also specify links to other documents .The symbols used for markup tell the browser how to display the text and are often called tags.
·        The word Language refers to the syntax that is similar to any other language.






ADVANTAGES OF HTML

·        HTML is very simple. So it is possible to create webpage without knowing anything about the HTML source behind the page.
·        HTML files are the plain text files, so they can be composed and edited on any type of computer such  a Windows, Mac, UNIX etc. 
·        WebPages created using HTML can run on every browser.
·        No download or plug-in installation is required to run webpages created using HTML.
·        HTML is very easy to understand so anyone  can create webpages by understanding the code of other web sites.
·        It allows the user to handle both text and graphics files in a cross-platform manner.
LIMITATIONS OF HTML
·        HTML defines a fixed set of elements i.e. you can only use the tags defined in HTML but cannot create their own tags.
·        HTML is not suitable for data interchange.
·        HTML lacks robust linking mechanism.
·        Using HTML, you cannot create animation.
·        In spite of all enhanced functionality, HTML comes with additional security risks.
·        Output can vary across different browsers.

Using an example explain the structure of HTML document.
The basic HTML document structure is as follows:
<Html>
<head>
<title> First Web Page</title>
<Head>
<body>
   Welcome to HTML document
</body>
</html>




·        <HTML>: It specifies the document as a webpage that can be seen in the web browser. The entire document is enclosed within the <HTML> and </HTML> tags. It actually tells the web browser where the page starts and where it ends.
·        <HEAD>: The head section specifies descriptive information about the web documents. It marked by an opening tag <HEAD> and closing tag </HEAD>. It consists of information such as title of the webpage etc.
·        <TITLE>: The title element contains the title of HTML document that appears on the title bar of the browser ‘s window when the webpage is loaded. It enclosed between <TITLE> and </TITLE> tags.
·        <BODY>: The body element contains the actual contents of your HTML document that can be seen by the end user, when the page is loaded in the browser’s window. The body element contains any valid HTML contents such as text, images, forms, special characters etc. These contents are always enclosed between <BODY> and </BODY> tags.
 

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