狭义上而言，嵌入式系统是指以应用为核心，以计算机技术为基础，软硬件可裁剪，适于应用系统对功能、可靠性、成本、体积和功耗严格要求的专用计算机系统。一般嵌入式系统的设计过程是：从产品定义开始，接着进行硬件设计，然后将软件或操作系统移植到硬件上，并且进行应用程序的开发，最后经过测试与调试后即开始销售或使用。-Narrow sense, the embedded system refers to the application as the core, computer technology, hardware and software can be cut, suitable for application to the function, reliability, cost, size and power demanding dedicated computer system. General embedded system design process: product definition from the beginning, followed by hardware design, software or operating system and then ported to the hardware and the application development, testing and commissioning after the last start after the sale or use.