Students often get confused on what AJAX is and they look up on the web what the AJAX is all about and everywhere they just find AJAX is Asynchronous JavaScript and XML. But What does it mean.

Before telling you what AJAX is first Let me tell you some websites build in AJAX, the best example is www.google.com. Now where does google uses AJAX. When you search on the Google for something lets say “Mobile Phone” A list of Autosuggestions comes up as soon as you type first letter M of the Mobile. And it gives you a list for selecting the most frequent searched words starting with letter M, for easy searching. AJAX is basically a Server Push Up Technology which shows you the content without refreshing the Page, thats why it is Asynchronous. The data which the server pushes up to be shown on the page without refreshing is stored in an XML document or the JSON.

So, an Indepth knowledge of AJAX requires, to have a knowledge of following languages and Scripts:

1) PHP or ASP .NET ( Your Web Development platform )
2) Javascript or jQuery ( jQuery is advanced version of JavaScript )
3) XML or JSON ( you can choose anything for data storage JSON is like an advance version XML)