An acronym for asynchronous Javascript + XML[3], it is not a technology of itself, rather refers to a group of technologies that are used together to develop Web applications. AJAX developed applications are most often found in Web 2.0[1] products. With Ajax, Web applications can retrieve data[2] from the server asynchronously in the background without interfering with the display and behavior of the existing page.
The current state of online technology as it compares to the early days of the Web. Web 2.0 is characterized by greater user interactivity and collaboration, more pervasive network connectivity and enhanced communication channels.
Numbers, characters, or images in a form which can be assessed by a human or (especially) input into a computer, stored and processed.
Describes the format, presentation and provides application control over the content of the documents and systems using this language. Much more powerful than HTML, XML is likely to be the next generation language for the web and business applications.
