The late 2011 MacBook Pro includes iLife (iPhoto, iMovie, iTunes) and OS X 10.7 preinstalled. No physical media is included, but Internet recovery is installed(hold CMD-R at boot). 10.9 is a free upgrade available and highly recommended.
They are older than the current generation of mac books. Some are older than others, look for one that is as new as possible if you can. You can Google the model numbers to find out when they were sold as the newest generation.