Windows
First, let’s install Ruby. Go get the One-Click Installer from the website (http://rubyinstaller.org/) by clicking Download and then clicking the highest-numbered version of Ruby you see there (version 2.0.0 as of this writing). When you run it, it will ask you where you want to install Ruby and which parts of it you want installed. Just accept all the defaults.
Now let’s make a folder on your desktop in which you’ll keep all of your programs. Right-click your desktop, select New, and then select Folder. Name it something truly memorable, such as programs. Now double-click the folder to open it.
To make a blank Ruby program, right-click in the folder, select New, and then select Text Document. Rename the document to have the rb
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