What are discrete signals that can either be high (1) or low (0) called?

Discrete signals that can be high (1) or low (0) are commonly referred to as digital signals. Digital signals differentiate themselves from analog signals, which represent information in a continuous flow. This binary nature is what allows digital signals to convey data efficiently, with clear distinctions between states, thereby ensuring reliability in digital communications and processing.

While binary signals describe a specific type of digital signal that employs two states (0 and 1), the broader term digital signals encompasses all such discrete signals, regardless of their specific implementation. Thus, the designation of digital signals accurately reflects the concept in question, as it captures the essence of any signal that operates within the digital domain, using discrete values to represent information.