hujianbo

一个虚拟DOS操作界面的小系统，一共有9条命令，可以在里面增加命令实现更多功能。(A virtual DOS interface small system, a total of 9 orders, which increased in order to achieve more.)

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)

FIFO和LRU页面置换算法，使用c++写的，有功能号，可以选择功能，进行相应的操作！(FIFO and LRU page replacement algorithm, using c++ written in the functional number, you can choose functions to carry out the appropriate action!)

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)

页面置换先进先出算法，请大家试试，本人鉴定没问题(FIFO page replacement algorithm, please try, I did not identify the problem)

计科操作系统课程“读者写者”问题的经典解决。(Branch of the operating system programs, " wrote the reader" as a problem to solve classic.)

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)

广东工业大学计算机学院操作系统4源代码 (Guangdong University of Computer Science 4 source code operating system)

操作系统作业源代码，方便学习操作系统课程的同学使用 (this is the codes for students who learn computer system.)

说明：  用标准C实现shell功能,是操作系统的作业，Linux里面的she(Shell to achieve using standard C function, the operation is the operating system, Linux inside she)