Electronic signals are variations in electrical voltage or current that carry information. These signals can represent data in various forms, such as sound, images, or text. They are essential for communication in devices like computers, smartphones, and televisions, allowing them to transmit and receive information efficiently. There are two main types of electronic signals: analog and digital. Analog signals are continuous and can take on any value within a range, while digital signals are discrete and represent data in binary form (0s and 1s). Both types are crucial for modern technology, enabling everything from radio broadcasts to internet communication.