system

1．虚拟存储器的引入 局部性原理：程序在执行时在一较短时间内仅限于某个部分；相应的，它所访问的存储空间也局限于某个区域，它主要表现在以下两个方面：时间局限性和空间局限性。 2．虚拟存储器的定义 虚拟存储器是只具有请求调入功能和置换功能，能从逻辑上对内存容量进行扩充的一种存储器系统 (1. The introduction of virtual memory locality principle: program execution in a relatively short period of time limited to a particular part of it Accordingly, it has access to the storage space is also limited to a particular region, it is mainly manifested in the following two aspects: the time limitations and space limitations. 2. The definition of virtual memory Virtual memory is just a request for redeployment of functions and displacement functions, from the logical to expand the memory capacity of a memory system)

操作系统中模拟作业进入内存的状态，作业调度程序(Operating system job scheduler)

制冷专业软件，非常实用，可计算制冷系统，制冷剂的物性(Refrigeration professional software is very useful, computable refrigeration system, refrigerant properties)

说明：  可变分区，一个很重要的操作系统原代码，很详细的拉，个人下载参考参考。(Variable Division, a very important source operating system, a very detailed and pulling personal information. Download.)

页面置换算法的模拟实现及命中率对比.通过模拟实现几种基本页面置换的算法，了解虚拟存储技术的特点(Simulation of page replacement algorithm, and the hit rate compared to several basic page replacement algorithm through simulation to understand the characteristics of virtual storage technology)

说明：  几个算法分析和操作系统的上机小程序，vc,c#实现(several algorithm analysis and operating systems on the plane small program vc, c#)

本教材以操作系统原理为主线，结合当今主流操作系统设计方法。(The principles of materials to the main line operating system, combined with today' s mainstream operating system design.)

说明：  手机天气预报系统，可以更改城市名字和显示天气，手机symbian 下使用(Mobile weather forecasting system, you can change the city names and display the weather, the use of mobile phones symbian)

操作系统实验演示代码(三个实验，作业管理，内存管理，文件管理)(Experimental demonstration of the operating system code (three experiments, operations management, memory management, document management))

哲学家进餐的问题，用程序模拟实现，解释死锁的产生、解除以及预防(dining philosophers problem, simulation procedures, explained Deadlock in lifting and prevention)