XML(eXtensible Markup Language)

• XML is a markup language much like HTML, but used for different
• Although XML is finding its application in very diverse applications but it was never designed to replace HTML. So XML should never be thought as replacement of HTML
• XML is a universal method of  representing data
• It is widely used as data exchange format because of its universal acceptability.
• XML was designed to describe data
• XML is a cross-platform, software and hardware independent tool for transmitting or exchanging information.
• One of the best advantage is that XML is an open-standards-based technology. Unlike HTML which dont allow new tags formation, XML allows it.

Usage of XML

• Storing data in a structured manner. ( Tree structure)
• Storing configuration information (config. files) 
• Transmitting data between applications
• Overcomes Problems in Client Server applications which are cross-platform in nature