What do analog signals use, while digital signals utilize packets of data?

Analog signals are characterized by their representation of information in a continuous form. This means that they can take on an infinite number of values within a range, allowing for smooth transitions and variations. Common examples of analog signals include sound waves and voltage levels, which can smoothly vary over time. This intrinsic quality of analog signals distinguishes them from digital signals, which break down information into discrete units or packets that can only represent specific values (often using binary).

Digital signals, in contrast, are governed by binary data, where information is coded in discrete states (0s and 1s). Although both signal types can convey similar types of information, their fundamental nature and how they transmit that information differ greatly. Continuous data, as utilized by analog signals, facilitates the representation of gradual changes and intricacies in information that may be lost in a digital format, which relies on sampling and quantization.

Thus, the correct answer reflects this foundational concept of signal transmission, emphasizing the use of continuous data in analog signals.