How does the Audi A4's Quattro system enhance handling and performance?

I've heard about the Quattro system on the Audi A4, but I'm not sure what it really does. Can someone give me a brief explanation of how it works and what benefits it provides?

The Quattro system on the Audi A4 is an all-wheel drive system that constantly monitors road conditions and distributes power to each wheel accordingly. This leads to improved traction, stability, and overall performance on any type of road.

With the Quattro system, the Audi A4 is able to maintain a nearly perfect balance between its front and rear wheels, providing optimal weight distribution and superior handling in all weather conditions.