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A computer monitor is an output device that displays visual information, such as text, images, and videos, generated by a computer. It acts as a screen, allowing users to interact with the computer's interface and is composed of a display panel, circuitry, and a casing. Other terms for a monitor include display, video display, or visual display unit (VDU).

Function: It receives signals from the computer's graphics card and translates them into a visual output that a user can see.

Components: A monitor includes a display panel (like LCD or LED), circuitry, power supply, casing, and ports for connecting to a computer (e.g., HDMI, DisplayPort).

Distinction from other screens: While similar to televisions, monitors are designed for higher resolution and lack a TV tuner. They are often optimized for tasks requiring sharp images and true colors, such as graphic design.