Can somebody guide, what is CMS and how it is rated in terms of creating dynamic websites.

Thanks

CMS stands for Content Management System. Its is a system that lets you edit the content of your website online without having to upload changed files via ftp.
There are some great free solutions already existing which will work just fine if you don't need something customized. A CMS consists mainly of modules which are easy to install and give you further functionality in your CMS like a Poll/Survey Plugin for example. Take a look at PHPNuke (http://phpnuke.org/), PHPWebsite (http://phpwebsite.appstate.edu/), Mambo(www.mamboserver.com). PhpWebsite is in my opinion the easiest for beginner its very well structured. Those are some examples working with PHP and MySQL another CMS that's Perl/CGI based and looks very promising would be WebGUI (http://www.plainblack.com/webgui), it's a little harder on the installation but looks very good from the administration point of view. To try the php, mysql ones set up and apache server and mysql server, easiest way is to download and install wamp5 (PHP5 Apache MySQL sur Windows : WAMP5 (http://www.wampserver.com))

Hi, give a look at Joomla too... it's an easy to use CMS that I'm using to develop some websites right now. It is opensource, and you can find a lot of components, modules and extensions over the internet and on the Joomla! Extensions Directory (http://extensions.joomla.org/) website. You can also, obviously, set a custom theme for your website created with Joomla!

Joomla! (http://www.joomla.org/)

Hope to be helpful.