What do negative logic levels represent?

In negative logic systems, the convention is that a logic low level, or binary 0, is interpreted as true, while a logic high level, or binary 1, is interpreted as false. This reversal of the standard binary interpretation enables the representation of true and false through the opposite levels compared to positive logic systems.

This concept is important in various applications, such as in particular types of circuits or when interfacing with components that adopt negative logic. Understanding this framework allows system designers and engineers to effectively use negative logic in designing circuits and interpreting signals correctly within those systems. This principle distinguishes negative logic from standard positive logic, where logic high signifies true and logic low signifies false.