A computer screen, also known as a monitor, is an output device that displays visual information from a computer. It allows users to interact with software applications, view images, and watch videos. Screens come in various sizes and resolutions, with common types including LCD (Liquid Crystal Display) and LED (Light Emitting Diode) displays. Modern computer screens often feature high-definition resolutions, such as Full HD (1920x1080) or 4K (3840x2160), providing clear and detailed images. Many screens also include additional features like touchscreen capabilities, built-in speakers, and adjustable stands for ergonomic use.