Definition: A Command Line Interface (CLI) lets you control your PC by typing commands. There's no mouse or graphical controls like you get in a GUI such as Windows.
Before Windows there was DOS which is a CLI. On Windows XP and 2000, you can access the CLI by clicking the Start button, then clicking Run, typing cmd in the box and pressing enter. That opens a CLI.
Glossary:
A B C D E F G H I J K L M N O P Q R S T U V W X Y ZAlso Known As: Dos Box, Dos Console, Command Line
Examples:
A quick way to get into the registry on Window XP is by running regedit from the Command Line.
