I have a couple of questions:
Are my files safe when I upgrade (from the update manager) from 12.04 to 13.04? Are my files safe if I upgrade from the 13.04 install disc?
Are my files safe if I dual-boot windows with ubuntu?
Can I use multi-boot? More than two OSs on my hard disk (3TB, 2TB, 1TB)
Is there a book for transitioning from windows to ubuntu?
Also, could you answer without using any technical jargon? I'm a newbie to ubuntu.