What is the difference between Audi's quattro and Audi's S tronic technology?

I am looking to buy an Audi and I am trying to understand the difference between Audi's quattro and S tronic technology. Can you explain it to me?

Audi's quattro technology is an all-wheel drive system that utilizes sensors to continuously monitor road conditions and adjust distribution of power between the front and rear wheels, providing better traction and handling on various surfaces. On the other hand, S tronic is a type of dual-clutch automatic transmission that allows for quick and smooth gear changes, resulting in a more sporty and efficient driving experience.