What is Terminal / Command Line?
A text interface for controlling your computer by typing commands, with no buttons or menus.
// Explanation
The terminal (also called console, shell, or command line) is the way to talk directly to the operating system in plain text. It looks intimidating, but it's simply a different language. Developers use it because it's faster and more powerful than clicking through menus. On Linux and Mac it's called Terminal; on Windows, PowerShell or CMD.
// Example
Instead of opening the file explorer, clicking a folder, and searching for a file, in the terminal you type: `ls -la /folder`. Same result, 3 seconds.