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The New Technology is quantum dot cellular automata at Nano metric scale, which has more focal points like lower area (PLBs) requirement and low Power Consumption. It can not be smaller than the present size transistors. The QCA solution applies to one of the alternative ways to resolve this physical edge. We generated AND gate, OR gate and NOT gate with this QCA invention. With the availability of universal gates in this article, we are allowed to execute any digital logic operation by using majority gates, which have the highest quality class contestant features and achieve the best area lap-delay compromise, such as Brent-Kung Adder(BKA), Kogge stone Adder(KSA), ladner fischer adder(KSA). At last, the adjustments such as delay (speed), power usage, field, ADP and PDP were considered.

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Quantum Dot Handheld Automatics is one of the best technologies in recent days for introducing a high speed and ultra-low powered digital circuit. Few binary and decimal arithmetic circuits were designed using an efficacious QCA-based algorithm. However, there is a substantial enhancement required yet if there is inbuilt availability of logic gates inside the QCA. Therefore, this article introduced innovative binary coded decimal (BCD) adders using QCA methodology. Simulation analysis discloses that proposed BCD adders obtained higher computational speed with lower delays and lesser area than conventional CMOS approaches.