He who is Char Jackson said on Sun, 12 Nov 2017 13:20:28 -0600:

"Terminal" means "command line". It comes from the *nix world.

True, but I haven't heard it called a terminal since somewhere in the
1990's. What I hear is CLI or command line (if you've used ssh to get
there) or console.

In Windows world, it's usually called Command Prompt.

These are windows opened up by an app, only one of which in the stack is
the one that is working while the others are dead.

None will take a command input from me, but all seem to be command line
windows, only under the control of the app, and not by me.

All I have control over are the window controls, but not the command line
control (so typing "exit" pr "quit" from the keyboard inside the window
wouldn't work).

Only the window controls work.