Terminal
Domain: Computer Systems
🎯 Motivation
A text-based interface to the OS. You type commands, the OS executes them. Also called shell or command line.
📋 Concrete Example
Terminal: cd documents (change directory). git commit (version control). Text-based control of the computer.
🔗 Analogy
The terminal is like a walkie-talkie to the OS - you type commands, the OS does them and reports back. No mouse, no clicking - just text commands.