A computer monitor is an electronic visual display for computers. A monitor usually consists of the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) or a flat panel display, while older monitors used a cathode ray tube (CRT). It can be connected to the computer via VGA, DVI, HDMI, DisplayPort, Thunderbolt, low-voltage differential signaling (LVDS) or other proprietary connectors.

A photo editor typically uses a computer monitor to review digital photos. Photo editors typically use a monitor with a high resolution and good color fidelity. …