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A computer monitor consists of a display panel, circuitry, power supply, and a housing, which work together to receive visual data from a graphics card and display it on a screen. Modern monitors primarily use thin-film transistor liquid crystal display (TFT-LCD) panels with LED backlighting, which are a significant advancement from older, bulkier cathode ray tube (CRT) monitors.

Key Components

Display Panel: Display Panel: The part that shows the image, using technologies like LCD (liquid crystal display) or OLED (organic light-emitting diode).

Circuitry: Includes control electronics, such as a Thin Film Transistor (TFT) layer, that interpret signals and control each pixel to form the image.

Power Supply: Provides the necessary electrical power for all the monitor's components to function.

Housing/Enclosure: A protective case that encloses and holds all the internal components together.

Connectors: Physical ports (like HDMI or DisplayPort) that connect the monitor to the computer's graphics card for data transfer.

User Controls: Buttons or touch interfaces on the monitor that allow the user to adjust settings like brightness, contrast, and resolution.