对基于4位嵌入式微控制器的计算器电路进行了综述，包括功能框图与工作原理、指令系统、内核硬件结构以及系统与外界接口等。
Summarization about calculator circuits based on 4 bit embeded system is given, include block diagram and work principle, the instruction system, the structure of MCU core and the I/O.
大规模集成电路晶元是中等到大规模的记忆晶元，用于8位处理器、数字时钟和计算器。
Lsi chips are medium to large size memory chips, 8 bit microprocessors, digital clocks or calculators.
该测试平台主要完成对某专用计算器中央控制电路板的电路、器件的在线测试。
This test platform can accomplish the on line test to the circuits and components of some kind of special calculator central control circuit board.
电子计算器是一种典型的大规模数字集成电路，主要由微处理器和外围的显示电路、键盘接口电路等组合而成。
Calculator chip is a typical kind of digital large scale integrated circuit. It consists of microprocessor and peripheral display diver and keyboard interface circuit.
电子计算器是一种典型的大规模数字集成电路，主要由微处理器和外围的显示电路、键盘接口电路等组合而成。
Calculator chip is a typical kind of digital large scale integrated circuit. It consists of microprocessor and peripheral display diver and keyboard interface circuit.
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