15-10-07Mon

Today I read about XML. I have worked with HTML but dont know about XML. I read about it. I came to know that XML(EXtensible Markup Language), is designed to describe data.while HTML is used to design or decorate the content/data.One more difference is that in XML tags are not predefined.Customers can define their own tags. XML uses DTD(Document Type Description) to describe data. There is XML parser to manipulate the XML document.
The parser loads the document into the computer's memory. Once the document is loaded, its data can be manipulated using the DOM(Document Object Model). The DOM treats the XML document as a tree.
There are some differences between using XML parser in different browsers.But one can create cross browser scripts to work in different browsers. I have downloaded some XML sample programs and think to write small programs of mine.