The Digital Video Interface (DVI) is a standard for connecting video sources, like computers and monitors. It transmits high-quality digital video signals, ensuring clear and sharp images. DVI can support both digital and analog signals, making it versatile for various devices. DVI connectors come in different types, including DVI-D for digital-only connections and DVI-I for both digital and analog. This interface is commonly used in computer displays and projectors, providing a reliable way to connect devices while maintaining high video quality.