Quantum computing is one of the most essential concepts growing interest in people in the present generation. Based on the medical to computer science and basic circuits, quantum computing is utilized for gaming fields. Hence to perform these activities, memory plays a significant role in quantum computing. Based on sequential circuits, memory layout is dependent. Therefore in-memory processing, registers, and flip-flops are most widely used in sequential circuits. To store one-bit data, Flip flops are used as binary storage elements. Based on the clock signal and combinational circuits, inputs are given to the flip-flops. This paper shows the design of a composite D/T Flip flop using the NOR subsystem. Two stable-state devices are used to store a binary bit of data. There are numerous electronic Flip Flops available. D/T Flip Flop is one of the most useful devices for storing data and counting applications. The proposed hybrid flip flop resulted in a signal output power of 17.089 dB, noise of - 34.497 dB, Eye height of 0.158 mv, a maximum Q factor of 27.47, minimum BER of 1.05e(-166), a threshold value of 0.082 dBm and the decision instant of 0.4375 ps.