What is a primary characteristic of digital signals?

Digital signals are fundamentally characterized by their representation of data using discrete values, typically 0 and 1. This binary nature makes digital signals distinct from analog signals, which represent information in continuously variable waveforms. The use of discrete values allows for more precise and reliable data transmission, as each value corresponds to a specific state, reducing the potential for interference and degradation that can occur with continuous waveforms.

In digital communication, these discrete signals can be easily stored, processed, and transmitted without the variability that characterizes analog signals. Therefore, the characteristic of being made up of discrete values is essential for understanding how digital signals operate and why they are widely used in modern electronics and communication systems.