Recent exposure to XML is relatively frequent, but for the theoretical knowledge is indeed very poor, so, there is time to organize, hope for future work can be helpful.
XML is designed to transfer data and store data.
HTML is designed to display data.
What is XML?
XML refers to Extensible Markup Language (EXtensible Markup Language)
XML is a markup language , much like HTML
XML is designed to transmit data rather than display it
XML tags are not predefined. You need to define your own labels
XML is designed to be self-descriptive
XML is the recommended standard for the consortium
The difference between XML and HTML:
XML is not an alternative to HTML
XML and HTML are designed for different purposes:
XML is designed to transmit and store data, with the focus on the content of the data.
HTML is designed to display data with the focus on the appearance of the data.
HTML is designed to display information, while XML is designed to transmit information.