What is the Quattro system on the Audi A4?

I've seen the term 'Quattro' associated with Audi cars, but I'm not sure what it means. Can someone explain what the Quattro system is and how it affects the overall performance of the Audi A4?

The Quattro system is Audi's all-wheel drive system that helps improve traction and handling on various road conditions. When driving an Audi A4 equipped with Quattro, you can expect better cornering, acceleration, and stability.

Quattro utilizes a center differential to distribute power between the front and rear wheels, providing better balance and control while driving. This is especially beneficial in wet or slippery conditions.

Not only does the Quattro system improve performance, but it also adds an extra layer of safety. With power being distributed to all four wheels, drivers can feel more confident and secure on the road.