[Blindmath] I have installed R, now what do I do?

[Faiz Rasool]

Hi all,

I have downloaded and installed R. Now I do not know what to do. When I start the program a window appears, but I do not find a place to type commands, and do not know where I would find the output of my commands. 

I must confess that I am an absolute beginner to R, and to statistical packages. Perhaps this explains my problem with R. Can anyone help me in learning how to start using R? 

Thanks all,
faiz.