This is a popular difficult to the teaching of operating system. 这也成为了当前大学操作系统原理教学普遍存在的一个难点。
Several difficult problems will emerge while linux operating system applies to PDA devices, such as how to boot kernel, how to develop driver program of devices, how to integrate root filesystem and so on. 嵌入式Linux操作系统应用于PDA设备时,会遇到几个主要技术难题,比如如何引导加载内核,如何开发设备驱动、如何架构文件系统等。
Traditional point-to-point simple structure or star architecture has been difficult to meet the design requirements of the current air traffic control operating system. 传统的点对点式简单架构或星形系统架构已难以满足当前空管运行系统的设计要求。
Buffer overrun vulnerabilities are so difficult to prevent that scores of them are being found and exploited in operating system and application software every day. 缓冲区溢出漏洞是那么难相处,以防止数十种,他们都是被找到和利用操作系统和应用软件,每一天。
In this case, resource utilization analysis becomes very difficult due to extreme complexity involved in differentiating resource utilization of the same operating system between the solution environment and the performance test environment. 在这种情况之下,由于解决方案环境与性能测试环境之间相同操作系统资源使用情况不同带来的极大复杂性,资源使用分析就变得十分的困难了。