Aah i see, so basically my fear of too many apps running in the backgrnd and slowing dwn the device are not needed. It'll automatically kill the process when there are too many.
Thanks for your help, the article was a big help too.

Also if you could tell me how exactly does one get a conformation that there is an update available, and does updating affect your saved journals, apps or pdf's if they are not in use? I Know these questions sound stupid but like i said new user.