Monday, August 17, 2009

The Internet,The Web and Electronic Commerce

HTML
Hypertext Markup Language is a text based programming language used to create Web pages. It is a subset of
a broader language called SGML ( Standard Generalized Markup language) which is used for encoding and
formatting documents. HTML provides means to create structured documents by donating structural
semantics for text such as headings,paragraphs,list and e.t.c. The documents are text files which is a content that is meant to be rendered on a computer screen,encoded information that direct the text format on the screen and is generally hidden from the user.
Javascript
Javascript is a scripting language used to enable programmatic access to objects within other applications. Javascript is a dialect of the ECMAScript standard and is characterized as a dynamic and prototype-based language with first-class functions. It is primarily used in the form of client-side Javascript for the development of dynamic websites. It is also primarily used to write functions that are embedded in or included from HTML pages and interact with the Document Object Model (DOM) of the page. Javascript is loaded as human-readable code. Javascript was designed with Java's syntax and standard library in mind.
Applets
An Applet is a program written in the Java programming language that can be included in an HTML page,in the same way an image is included in a page. It is a small utility program, designed to perform a specific function within a larger program. On the web or internet, applets is used to make a webpage more attractive,interactive and useful. They are also a special programs thatcan be downloaded quickly. They provide animation,display graphics, and provide interactive games to web pages.

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