What is the primary function of a monitor?

The primary function of a monitor is to display visual output. Monitors serve as the primary interface through which users interact with their computer's graphical user interface (GUI). They present images, videos, text, and graphics generated by the computer's graphics card and operating system, allowing users to view and interact with their applications and files. This visual representation is crucial for performing tasks on a computer, making the monitor an essential component of the computing experience.

In this context, while other devices may be responsible for storing data, inputting commands, or connecting to networks, the monitor is specifically designed to visually relay the output from the computer, making it a key tool for user interaction.