??? wrote:
> Then the platform. I'm conditioned to Windows, can this OS use all the
> functions, should I change to Linux.

Use the one-click installer for Windows. It should set it up for use 
straight away.

>        Or recommend me a beginner's book, I'll be appreciative for this.

You can start with the old online version of the Pickaxe book:
http://www.rubycentral.com/pickaxe/


Best regards,

Jari Williamsson