A circuit with two inputs that can produce an output when at least one input is high is referred to as which type?

A circuit that produces an output when at least one of its inputs is high is known as an OR gate. The fundamental characteristic of an OR gate is that it outputs a high signal (1) when one or more of its inputs are in a high state. This means that if either, or both, of the inputs are high, the output will also be high.

In the context of digital logic gates, an OR gate serves as a basic building block, and its truth table clearly demonstrates this property: the output is 1 if at least one input is 1. This differentiates it from other types of gates, such as NAND and NOR, which have different output characteristics, and XOR, which produces a high output only when exactly one of the inputs is high. Therefore, the definition and functionality of an OR gate aligns perfectly with the question's requirement.