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Step 1 of 1 6.05DP It is easier to think of using active high names for all the logic signals in a logic circuit but while realizing the circuit it may be necessary to deal with active-low signals due to the requirement of the environment. While designing a logic circuit on board, speed is a key factor. Inverting gates are faster than the non- inverting gates. So, if only non-inverting gates are used to keep all the signals active-high, for convenience purpose, the speed of the circuit reduces. Hence, there is a significant performance payoff in carrying some signals in active-low form while designing real time circuits.