Published Paper Details:

Quantum computing, nanotechnology, optical computing, DNA computing, digital signal processing (DSP), quantum dot cell automata (QCA), communication, and computer graphics all use reversible logic. To achieve quantum computing, the introduction of reversible logic is needed. Reversible logic can reduce quantum costs, circuit depth, and the number of trash outputs. As these circuits may generate separate responses from specific inputs and vice versa, no information is lost. CMOS architecture can be used for a wide range of applications, including optical information processing, quantum cryptography, quantum computation, and nanotechnology. Design of a Flip-Flop Flip-Flop Counter and Universal Shift Register is presented in this paper. In the sequential circuit family, the universal shift register is essential. This research presents a universal shift register that is optimised in terms of quantum cost, delay, and garbage outputs.