Which type of user interface uses input devices like mice or touch screens to issue commands?

The correct answer is the graphical user interface, commonly known as a GUI. This type of interface is designed to provide a visual way for users to interact with software applications, utilizing elements such as windows, icons, buttons, and other visual indicators that users can manipulate using input devices like mice or touch screens.

The GUI makes it intuitive for users to issue commands by clicking or tapping on visual elements rather than needing to type commands or use textual input. This user-friendly design enhances accessibility and makes it easier for individuals who may not be familiar with command syntax or technical details to navigate and operate software.

In contrast, shells and command-line interfaces are primarily text-based and require users to input commands using a keyboard, which can be less intuitive. Textual interfaces also rely heavily on written input, lacking the visual interaction offered by a GUI, which is specifically designed around graphical elements to simplify the user experience.