DVI, or Digital Visual Interface, is a video display interface used to connect a computer to a monitor or projector. It was designed to provide high-quality digital video signals, supporting both digital and analog formats. DVI is commonly found in computer graphics cards and displays, making it a popular choice for connecting devices in various settings. There are several types of DVI connectors, including DVI-D for digital signals only, DVI-A for analog signals, and DVI-I, which supports both. DVI can transmit high-definition video, making it suitable for applications like gaming, graphic design, and presentations.