A Signal Converter is a device that changes one type of signal into another. This is often necessary when different devices or systems use incompatible signal formats. For example, a signal converter can transform an analog signal into a digital signal, allowing devices like microphones or cameras to communicate with computers or other digital equipment. Signal converters are commonly used in various applications, including audio and video systems, telecommunications, and data transmission. They help ensure that information is accurately transmitted and received, facilitating seamless interaction between different technologies, such as computers, televisions, and smartphones.