If a pitcher throws the ball to the batter and he doesn't hit it?

If the batter attempts to hit the ball and misses, it is a strike. If the batter does not attempt to hit the ball and the ball enters the strike zone, it is a strike. If the batter does not attempt to hit the ball and the ball does not enter the strike zone, it is a ball (unless it hits the batter, then the batter is awarded 1st base).