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msdos-master
source code for ms-dos 1.1 and ms-dos 2.1
- 2017-12-24 09:06:03下载
- 积分:1
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6875
简单写字板,精选ios编程学习源码,很好的参考资料。(Simple WordPad, selection of learning IOS programming source code, a good reference.)
- 2013-12-13 17:01:37下载
- 积分:1
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FIFOLRU
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)
- 2010-01-08 15:10:19下载
- 积分:1
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fl2
操作系统 实验二 进程同步与互斥
实现的基本的进程的同步、互斥,并用银行家算法实现与死锁预防(Second, the process of experimental operating system synchronization and mutex realize the basic process synchronization, mutual exclusion, and bankers with the deadlock prevention algorithm)
- 2008-04-21 15:51:39下载
- 积分:1
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BYQCKZJ1a
12路交流,24路开关,4路温度等直流测控。主机板的印制板图(12-way AC, 24-way switch, 4-way temperature DC measurement and control.
Printed Board Drawing of Main Board)
- 2019-01-18 18:22:07下载
- 积分:1
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banker_by_array
说明: 本程序为自己在学习操作系统时独立根据书上所述的银行家算法制作而成,包括一个数组输入函数(Sr()),数组输出函数(Pr())和一个判断函数(test()),并通过指针传递参数,可以自定义进程数目和资源种类数目(源程序限10个以内,可自行更改数组)。
注:本程序是在linux环境下通过gcc编译器编译成功的。若移植到windows环境下可能在汉字显示部分出现乱码。(This procedure for their own independence in learning, when the operating system on the basis of the book described in banker s algorithm produced, including an array of input function (Sr ()), array output function (Pr ()) and a judging function (test () ), and through pointer parameters, the process can customize the number and type of the number of resources (source 10 within limits, can make changes to the array). Note: This procedure is in the linux environment through the gcc compiler to compile successful. If transplanted into windows environment may display garbled characters.)
- 2008-11-15 01:20:10下载
- 积分:1
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1526_1528_ABCydia.COM_
5s 国行A1528和5C 国行A1526开启移动联通4G运营商文件.(ios9.0~ios9.2.1)(iPhone 5s model A1528 and iPhone 5c model A1526 carrier for opening China mobile&China union 4G.(ios9.0~ios9.2.1))
- 2016-04-07 21:18:26下载
- 积分:1
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QiQiWeather
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)
- 2008-09-28 15:48:33下载
- 积分:1
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operating-system-test-2
重庆大学软件学院操作系统实验二,线程及其调度,实现并行排序,并用图形界面表示(operating system test 2,thread scheduling and realize the parallel sorting showing as a graphical interface)
- 2016-03-04 15:30:59下载
- 积分:1
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subject_3
对于OPT算法,在有多个页面可选的情况下,先淘汰较早进入的页面)。
3. 计算缺页次数及缺页率。
测试用例格式如下:
输入:
算法(1 OPT,2 FIFO,3 LRU)
内存块数
页面序列(页面1,页面2,页面3,...)
输出:
页面变化时内存块装入页面列表1-是否命中/页面变化时内存块装入页面列表2-是否命中/...
缺页次数
其中:
页面变化时内存块装入页面列表:内存块1装入页面,内存块2装入页面,内存块3装入页面...,未装入任何页面时由 -”表示
是否命中:1-命中,0-缺页">
- 2021-04-27 00:48:45下载
- 积分:1