What is the difference between Audi's quattro system and other all-wheel drive systems?

I am a car enthusiast and I am curious about the technology behind Audi's quattro system. Can someone explain the difference between this system and other all-wheel drive systems?

Audi's quattro system is different from other all-wheel drive systems in its use of a self-locking center differential to distribute power between the front and rear axles, providing better traction and handling in various driving conditions.

As a happy Audi owner for over 10 years, I can tell you that the quattro system not only provides better handling in rain and snow, but also improves the overall performance of the car, allowing for faster acceleration and better cornering.