hi guys. iam a very amature in this computer stuff. i want to know how to play quake III...

i found qyake 3 in my app manager. it was only 2.mb. (astonishing) !
i installed it, it didnt work, just closed down.
some how i think i immagine i need more than that 2mb installation...

so please tell me what else i need to downlaod, and from where. please guide me step by step. i realli want to have this game.

and i couldent understand what is this pk3 file.???? do i need this stuff as well?