Why is 9 pin bowling called no tap?

9 pin no tap, means if you throw your first ball down the lane and take out only 9, then it is a strike and the lane resets to 10 pins and you move on to the next frame. Ninepin Bowling and 9 pin no tap are not the same thing. Ninepin bowling is a type of "bowling." No tap is a game type played within "Tenpin" (traditional US alley bowling).