PLEASE HELP ME NAME IT

(call me a noob,but...)I HAVE SEEN THIS THING A FEW TIMES,BUT I DON'T KNOW THE NAME OF THIS THINGY.THING YOU CAN HELP ME FIND THE CORRECT NAME FOR THIS GADGET?

Hey guys,this thing
-must connect to pc (don't know if it is capable to be used wirelessly)
-it's a pad-thingy
-draw on this thing,and what you draw is shown on pc screen
-some graphic artists use these things

hey,thanks!you really helped me! i wish i could + rep you...