Signal formats refer to the different ways in which information is represented and transmitted in communication systems. These formats can include analog signals, which vary continuously, and digital signals, which represent data in discrete values. Each format has its own advantages and is used in various applications, such as television broadcasting, radio transmission, and data networking. Understanding signal formats is crucial for effective communication. For instance, audio signals can be transmitted in formats like MP3 or WAV, while video signals might use formats like MPEG or AVI. Choosing the right signal format ensures that the information is conveyed clearly and efficiently, making it easier for devices to process and interpret the data.