In Rails 1.2 the default session store is file based. This is inefficient and difficult to maintain. In Rails 2.0 the default is now cookie based which has several benefits as you will see in this episode.

Ever wonder how websites are able to remember who you are? They remember your country, your language, and many other details? This is often-times the product of small text-files being stored on your computer, which contain information about you. Don’t worry, the information isn’t derived from sec...