What do you mean by AJAX.
 

AJAX stands for Asynchronous JavaScript and XML. AJAX is web browser techniques independent of web server software. AJAX is a new techniques for creating , better faster, more interactive application with the help of XML, HTML and CSS. AJAX is group of technology not a single technology. AJAX is the way of Programming for the web that gets rid of hourglass.

AJAX is an Asynchronous JavaScript and XML. It is a technique for creating fast and dynamic web pages. Ajax adds a layer to web application communication models. As, HTML and css code, Ajax also downloads JavaScript files. These three components make up the Ajax engine. Ajax sends page bits to request services from the server as needed. It uses multiple connections to load basic scripts and css files; the rest is requested as content.

AJAX is not a new programming language but some effects are new on it. AJAX is about updating parts of a web page, without reloading the whole page. It is a technique for creating dynamic web pages . The applications that may use AJAX are:-
Google maps
Gmail
YouTube and
Face book Tabs.

Ajax is a group of interrelated web development techniques which is used on the client-side to create asynchronous web applications. With the help of Ajax, web applications can send data to and retrieve data from, a server without interfering with the display and behavior of the existing page.

Ajax abbreviate manning of asynchronous java script is a group of corresponding web development techniques work on client side. Data can be retrieved used in XMLHttpRequest object. It’s used to updating the page without reloading the whole page.

AJAX = Asynchronous JavaScript and XML.

AJAX is a technique for creating fast and dynamic web pages.

AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.

Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.

Examples of applications using AJAX: Google Maps, Gmail, Youtube, and Facebook tabs.