摘要:
1 - Describe the actions taken by a kernel to context-switch between processes. 当进行上下文切换时,内核会将旧进程状态保存在其PCB中,然后加载经调度而要执行的新进程的上下文。上下文包括CPU寄存器的值、进程状态和内存管 阅读全文
摘要:
1 - The services and functions provided by an operating system can be divided into two main categories. Briefly describe the two categories, and discu 阅读全文
摘要:
1 - What are the three main purposes of an operating system? ① 操作系统是一个资源管理器,它管理计算机硬件; ② 操作系统为应用程序提供运行的基础; ③ 操作系统充当计算机用户和计算机硬件的中介。 2 - We have stressed 阅读全文