Executing a system command without waiting for a response

> Hello,
>
> I was wondering what is the best and easiest way to execute a system command
> without waiting for a response (I guess it is called asynchronous process?).
>
> Smalltalk#system: waits for the response. For example, when I do:
>
> Smalltalk system: 'gedit'
>
> gedit is opened but the interpreter is locked until I close gedit. I want
> the interpreter not to be locked and I want gedit to be still open even if I
> quit the interpreter. Is something like this possible?