参考答案: A
详细解析:
嵌入式系统是一种计算机应用系统，是一种同个人计算机、超级计算机具有显著区别的计算机系统。
An embedded system is an applied computer system，as distinguished from other types of（ ）such as personal computers（PCs）or supercomputers.
A. computer systems
B. computer hardware
C. computer software
D. systems
参考答案: A
详细解析:
嵌入式系统是一种计算机应用系统，是一种同个人计算机、超级计算机具有显著区别的计算机系统。