Embedded system is an application specific computer system that focuses on the application and it is based on the computer technology , its hardware and software is cuttable 嵌入式系统是以应用为中心，以计算机技术为基础，软硬件可剪裁的专用计算机系统。
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Micro - bore calcium silicate without rock cotton is a white , hard new thermal insulation material which has the features of light unit weight , high hardness , low heat conduction coefficient , heat resisting , corrosion - proofed , cuttable and sawable , and widely used in the pipeline of electric , metallurgy , petrochemistry , architecture and shipbuilding industry , and heat resisting , fireproofed and soundproofed equipment of the house wall 无石棉微孔硅酸钙是一种白色、硬质的新型保温材料，具有容重轻、强度高、导热系数小、耐高温、耐腐蚀、能切、能锯等特点被广泛应用于电力、冶金、石化、建筑、船舶等领域的设备管道、墙体屋面的保温隔热和防火隔音。
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Embedded system is an application specific computer system that focuses on the application and it is based on the computer technologyjts hardware and software is cuttable . the development of embedded systems is very fast during the last ten years , furthermore , as an important part of embedded system , embedded operating system is uesed in the embedded systems more and more , especially in handheld devices and electronic devices . but the design techniques of embedded system and embedd software is still germinant , and there are no standards and universal methods about it 嵌入式系统是以应用为中心，以计算机技术为基础，软硬件可剪裁的专用计算机系统。近十几年来，嵌入式系统的发展异常迅速，嵌入式操作系统作为嵌入式系统的核心，其应用也越来越广泛，尤其在手持设备、信息家电领域更加突出。但嵌入式系统以及嵌入式软件设计技术仍旧处于起步阶段，仍旧未能形成一套完整、有效、通用的开发方法和规范。
