What is the name of the device used in live action filming that includes information like scene, take and roll and has a part that can snap together? What is the name of the device used in live action filming that includes information like scene, take and roll and has a part that can snap together?

It can also include information like production name, date, cameraman, director, timecode, etc.
It is clapperboard: http://en.wikipedia.org/wiki/Clapperboard

used in filmmaking and video production to assist in the synchronizing of picture and sound, and to designate and mark particular scenes and takes recorded during a production