The links above will give you all the info you need.
They are used to enhance the visuals of a game. In a nutshell AA helps with smoothing the edges of an image making them less jagged. AF help with texture filling.
hey guys can any one give a detail info on this noAA noAF and 4*AA what is this how can i apply to my pc
Anti-aliasing is not applied to the PC entirely. It's only featured in most games in the past few years. It can be applied to any game, really, by using certain programs depending on what graphics card you have. The higher the "AA" level, the more smoothing of textures you'll see. It will also negatively affect your frame rates in the game it is applied to, especially in more recent games.