AJAX? - Web Development Terminology
It's been the hottest buzzword on the block, AJAX, but what does it mean?
AJAX changes this paradigm for the browser. Using AJAX techniques the browser would no longer need to refresh the entire page. It may not seem like a big deal at first, but the technology opens up all new doors as to how a web page can behave. Instead of refreshing the entire page under the old paradigm, a web page can now act more like a desktop application. This allows the programmer and designer more flexibility for user interface.
Simply put, AJAX allows the browser to send data back and forth to the web server without refreshing the page and can do so behind the scenes with or without user input.