DVI-A, or Digital Visual Interface - Analog, is a type of video connection that transmits analog signals. It is primarily used to connect computers to monitors, especially older models that do not support digital inputs. DVI-A connectors are typically found on graphics cards and can be used with VGA monitors through an adapter. Unlike its digital counterparts, DVI-D and DVI-I, DVI-A does not carry digital signals, making it less common in modern setups. However, it remains useful for specific applications where analog output is required, ensuring compatibility with legacy display devices.