操作系统实验：模拟LINUX操作系统的虚存管理机制，采用多道程序控制方式、多级页表、FIFO请求方式完成对实存辅存的映射管理，处理访存请求。实现了FIFO、LRU、LFU等页表淘汰算法。-Experimental operating system: LINUX operating system simulation of virtual memory management mechanism, the use of multi-channel control mode, multi-level page table, FIFO request a way to keep the existence of the mapping Des management, dealing with the request to visit depositors. The realization of the FIFO, LRU, LFU algorithm, such as page table out.