What defines a combinational logic circuit?

A combinational logic circuit is defined by its output being determined solely by the current inputs at any given moment. This means that the output of a combinational circuit does not depend on any previous states or inputs; rather, it produces a result that is a direct function of the current values present on its input terminals.

This characteristic distinguishes combinational logic from sequential logic circuits, which have memory capability and can store the state of previous inputs. Combinational circuits perform logical operations such as addition, subtraction, or basic Boolean functions without involving any historical data, making them simpler and faster in certain applications.

In contrast, options that suggest memory capability, sequential processing, or feedback loops pertain to characteristics of sequential logic circuits, which utilize past input states to influence results, thereby demonstrating more complexity. This clarity on how combinational logic functions reinforces the understanding of its essential attributes.