The bridge between human intention and computer action. Selecting the right UI depends on user expertise and task complexity.
Uses Windows, Icons, Menus, and Pointers. Familiar to users of macOS and Windows.
Interactions occur via typed text commands. Common in Terminal or Command Prompt.
In modern systems, a hybrid approach is often taken. While the average user in 2026 interacts almost exclusively with high-end WIMP and touch interfaces, the underlying server maintenance and advanced development remain firmly rooted in the speed and power of the CLI.