What is the difference between jquery and ajax?

[urtrivedi]

I have some doubt regarding jquery and ajax.
What is the difference between jquery and ajax?
Do jquery accesses server resource or its just do the things at client side?
while solving a problem what to choose out of these two?

JQUERY:
jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is designed to change the way that you write JavaScript. As you said it is a client side part.

AJAX

AJAX is not a new programming language, but a new way to use existing standards.

AJAX is the art of exchanging data with a server, and update parts of a web page - without reloading the whole page. AJAX is about updating parts of a web page, without reloading the whole page.

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

Also refer to the attached jpeg for ajax process.

[urtrivedi]

Thanks for your reply.