Definition of Combinational Circuit
Combinational circuits are specially designed using multiple interconnected logic gates such that the output will be generated by computing the logical combinations of the present input only. No clock pulse is present here. Moreover, no previously stored value or state is taken into consideration here. The output is independent of previous states.
What is Combinational Circuit ?
Combinational circuits are very well known components in digital electronics which can provide output instantly based on the current input. Unlike sequential circuits, a combinational circuit listens for input signal and and generates output no matter what is the past input or state as it has no feedback or memory component. It only cares about present input and state.