Seriously, if you don’t understand anything about Windows Azure Cloud Computing, here is a neat article that talks about Windows Azure with complete clarity. Love this article :)
Following excerpt is taken from the article:
Windows Azure is Microsoft’s application platform for the public cloud. You can use Windows Azure just to store data, with the applications that use this data running on-premises (that is, outside the public cloud). You can use Windows Azure to create virtual machines for development and test or to run SharePoint and other applications. You can use Windows Azure to build massively scalable applications with lots and lots of users. Read more of it.
I suggest you opt for the 90-day free trial of Windows Azure. Powerful machine, simple to use.