Operating Systems
操作系统课程讲解现代操作系统的核心概念与实现机制。主要内容包括进程与线程管理、CPU调度、进程同步与互斥、死锁处理、内存管理（分页、分段、虚拟内存）、文件系统、磁盘调度、I/O管理与系统安全。课程结合Linux等真实系统源码分析，培养学生理解系统级编程与资源管理的能力，为后续系统开发与底层优化奠定基础。
This course covers core concepts and mechanisms of modern operating systems. Topics include process and thread management, CPU scheduling, synchronization and mutual exclusion, deadlock handling, memory management with paging, segmentation, and virtual memory, file systems, disk scheduling, I/O management, and security. Real systems such as Linux are analyzed to develop system-level programming and resource management skills.
学生需使用C或C++实现一个简易的Shell命令解释器，支持命令解析、内部命令、外部命令执行、管道、输入输出重定向、后台运行及作业控制等功能。要求使用fork、exec、pipe、dup等系统调用，并正确处理进程同步。交付物为可运行程序、源代码及实现说明文档，需通过指定测试用例。
Students implement a simple shell command interpreter in C or C++ supporting command parsing, built-in and external commands, pipes, I/O redirection, background execution, and job control. The project requires fork, exec, pipe, and dup system calls with correct synchronization. Deliverables include a runnable program, source code, and documentation passing specified test cases.