The quantum-dot cellular automata (QCA) nanoscale computer technology is promising to overcome the limits of the microelectronic CMOS technology. Because the leading role of QCA wires, the serial data transfer/processing is preferable. The financial, Internet of Things, and control computer applications require direct processing of decimal information without representation and conversion errors. Because a QCA wire can be considered as a virtual tape with written binary symbols, a special version of Turing machine model can be used for a QCA computer implementation. Design of a novel QCA serial decimal pipelined processor based on the Turing machine model is presented. The processor uses the run-time tape reconfiguration for arithmetic processing of decimal operands encoded in the 5-bit Johnson-Mobius code. The proposed design demonstrates significant hardware simplification.

量子点细胞自动机（QCA）纳米计算机技术有望克服微电子CMOS技术的局限性。由于QCA导线的主导作用，因此最好进行串行数据传输/处理。金融，物联网和控制计算机应用程序需要直接处理十进制信息，而没有表示和转换错误。由于可以将QCA导线视为带有书面二进制符号的虚拟磁带，因此可以将特殊版本的Turing机器模型用于QCA计算机实施。提出了一种基于图灵机模型的新型QCA串行十进制流水线处理器的设计。处理器使用运行时磁带重新配置来对以5位Johnson-Mobius代码编码的十进制操作数进行算术处理。