11 · The Command Line
Terminal
Where you type commands (the shell)
The text window where you instruct the computer by typing instead of clicking; the “shell” is the program reading what you type. When a coding agent runs, this is where it lives.
Concrete example
The scrolling text you watch an agent produce is its terminal — each line a command and its result.
Why it matters
The cockpit of real computing, and the surface every coding agent operates on.