Where (or what) is the iPython console?

The following is an excerpt from Unit 4 of the course “ROS Basics in 5 days”:
Now check the output of the code you’ve just executed in the IPython notebook (that’s the part right down the code).

What is the iPython console?

Hi @mohank,

That may no longer be applicable. I apologize. Please run all your code from the terminals. We will update the notebooks accordingly.

Thank you - appreciate your quick clarification!