Next, it 🤖 takes the first task to finish (let's say, our "slow-file" 📝) and continues whatever it had to do with it.

That "wait for something else" normally refers to <abbr title="Input and Output">I/O</abbr> operations that are relatively "slow" (compared to the speed of the processor and the RAM memory), like waiting for:

* the data from the client to be sent through the network

<img src="https://fastapi.tiangolo.com/img/async/parallel-burgers/parallel-burgers-04.png" alt="illustration">

Luego, el cajero / cocinero 👨‍🍳 finalmente regresa con tus hamburguesas 🍔, después de mucho tiempo esperando 🕙 frente al mostrador.

<img src="https://fastapi.tiangolo.com/img/async/parallel-burgers/parallel-burgers-05.png" alt="illustration">

In contrast to a "**container image**" that is the stored static contents, a "**container**" normally refers to the running instance, the thing that is being **executed**.