It looks and feels a lot like Windows (more or less), but, being very lightweight, it runs very quickly, and – especially if you mainly use the computer to browse the web – it’s a really great way of giving an older machine a new lease of life. More here

That should be enough to get you started. Firefox comes pre-installed (just go to Applications, at the top/Internet), as does Open Office, a handy, open-source word processing program (Applications/Office). Having Open Office means you can open Microsoft Word documents when they’re sent to you by e-mail.