There are two consoles in BR, the Command Console and the GUI Console.
The Command Console is the window in which you do programming (in GUI On mode), but also the "running window" when in GUI Off mode. Commands may be typed directly into the Command Console. From the Command Console you can check the value of variables while a program is running, edit programs, or perform a variety of other debugging operations.
The bottom line of the command console is commonly referred to as the command line.