Computer displays are screens used to visually present information from a computer. They come in various types, including LCD (Liquid Crystal Display), LED (Light Emitting Diode), and OLED (Organic Light Emitting Diode). These displays can vary in size, resolution, and refresh rate, affecting how clear and smooth images appear. The main function of a computer display is to show text, images, and videos, allowing users to interact with their devices. Modern displays often include features like touchscreen capabilities and adjustable brightness. They connect to computers through ports such as HDMI (High-Definition Multimedia Interface) or DisplayPort.