Terminal

The Terminal is your direct, text-based interface (CLI) to a computer's operating system: raw power, zero GUI overhead.

This is the Command-Line Interface (CLI): a non-graphical environment for executing commands directly against the OS kernel. It’s the essential tool for developers and system administrators, enabling high-efficiency task automation and remote server management. You execute commands via a shell (like Bash or PowerShell) to perform complex operations with minimal resource use. For example, a single command like `ssh [email protected]` provides secure, direct access to a remote machine, and tools like `git` or `npm` are entirely dependent on this interface. It offers unparalleled control and speed, bypassing the mouse-driven Graphical User Interface (GUI) entirely.

https://en.wikipedia.org/wiki/Command-line_interface