How does the Audi A1's turbocharger work?

I'm having trouble understanding the inner workings of the Audi A1's turbocharger, can someone explain it to me?

The Audi A1's turbocharger uses exhaust gases to spin a turbine and compress air, which is then forced into the engine for increased power and efficiency.

Think of the turbocharger as a mini-engine within the engine, it takes in air and compresses it to make the fuel-air mixture more powerful for combustion.

In simpler terms, the turbocharger is like a big fan that pushes extra air into the engine, allowing the car to produce more power while using less fuel.