What is a primary feature of digital circuits compared to analog circuits?

Digital circuits are defined by their use of discrete levels of voltage instead of continuous signals. This means that in digital circuits, information is represented using binary values, typically as high (1) and low (0) states. These binary states correspond to specific voltage levels, allowing for clear and unambiguous signal interpretation. This discrete nature contributes to noise immunity, meaning that digital circuits can operate correctly even in the presence of some level of signal distortion or noise, unlike analog circuits which rely on continuously varying signals and are more susceptible to such interferences.

Furthermore, the use of discrete voltage levels allows for simpler error detection and correction mechanisms in digital systems, which enhances reliability and efficiency in data processing and transmission. Digital circuits also facilitate easier integration and scaling since they can be fabricated using various technologies like CMOS, which is highly advantageous for modern electronics.