<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[主攻整理408、专升本资料~]]></title><description><![CDATA[408、专升本答疑~]]></description><link>https://blog.youkuaiyun.com/lwewan</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; lwewan]]></copyright><item><title><![CDATA[CPU 调度]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/160083454</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/160083454</guid><author>lwewan</author><pubDate>Sun, 12 Apr 2026 18:53:51 +0800</pubDate><description><![CDATA[1）排队器。2）分派器。3）上下文切换器。调度程序是操作系统内核程序。请求调度的事件发生后，才可能运行调度程序，调度了新的就绪进程后，才会进行进程切换。理论上这三件事应该顺序执行，但在实际的操作系统内核程序运行中，若某时刻发生了引起进程调度的因素，则不一定能马上进行调度与切换。现代操作系统中，应该进行进程调度与切换的情况如下：此外，在有些系统中，当有更紧急的任务（如更高优先级的进程进入就绪队列）需要处理时，或者当前进程的时间片用完时，也会被强行剥夺 CPU。进程切换往往在调度完成后立刻发生，它要求保存原进程]]></description><category></category></item><item><title><![CDATA[计算机系统概述]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/159351357</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/159351357</guid><author>lwewan</author><pubDate>Sun, 29 Mar 2026 16:02:13 +0800</pubDate><description><![CDATA[中断（Interruption）也称外中断，是指来自 CPU 执行指令外部的事件，通常用于信息输入/输出，如设备发出的 I/O 结束中断，表示设备输入/输出处理已经完成。时钟中断，表示一个固定的时间片已到，让处理机处理计时、启动定时运行的任务等。异常（Exception）也称内中断，是指来自 CPU 执行指令内部的事件，如程序的非法操作码、地址越界、运算溢出、虚存系统的缺页及专门的陷入指令等引起的事件。异常不能被屏蔽，一旦出现，就应立即处理。关于内中断和外中断的联系与区别如下图所示。]]></description><category></category></item><item><title><![CDATA[26考研——网络层概述]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/154287090</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/154287090</guid><author>lwewan</author><pubDate>Sun, 02 Nov 2025 14:48:41 +0800</pubDate><description><![CDATA[网络层提供主机到主机的通信服务。主要任务：将分组从源主机经过多个网络和多段链路传输到目的主机【分组转发和路由选择OSI 参考模型的网络层提供面向连接的虚电路服务。TCP/IP 体系的网络层提供无连接的数据报服务所传送的分组可能出错、丢失、重复、失序或超时。通信的可靠性由传输层负责。路由器做得比较简单，网络造价降低，运行方式灵活，能够适应多种应用。]]></description><category></category></item><item><title><![CDATA[26考研——进程与线程（2）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/147859035</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/147859035</guid><author>lwewan</author><pubDate>Sun, 14 Sep 2025 11:27:44 +0800</pubDate><description><![CDATA[26考研408操作系统——进程与线程，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——内存管理（3）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/149725847</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/149725847</guid><author>lwewan</author><pubDate>Sun, 14 Sep 2025 10:14:49 +0800</pubDate><description><![CDATA[26考研408操作系统——内存管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——内存管理_内存管理策略（3）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/149725903</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/149725903</guid><author>lwewan</author><pubDate>Sun, 07 Sep 2025 10:21:10 +0800</pubDate><description><![CDATA[26考研408操作系统——内存管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148202936</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148202936</guid><author>lwewan</author><pubDate>Fri, 27 Jun 2025 17:46:07 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_常见文件系统实例（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148811804</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148811804</guid><author>lwewan</author><pubDate>Fri, 27 Jun 2025 16:56:02 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——数据的表示和运算_整数和实数的表示（2）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148515519</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148515519</guid><author>lwewan</author><pubDate>Sun, 08 Jun 2025 22:13:59 +0800</pubDate><description><![CDATA[26考研408计算机组成原理——数据的表示和运算，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_文件系统（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148363963</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148363963</guid><author>lwewan</author><pubDate>Sun, 01 Jun 2025 15:39:34 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_文件目录（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148353670</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148353670</guid><author>lwewan</author><pubDate>Sat, 31 May 2025 22:25:38 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[信号量相关好题分享]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148293046</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148293046</guid><author>lwewan</author><pubDate>Thu, 29 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408操作系统——进程与线程，持续更新ing]]></description><category></category></item><item><title><![CDATA[CPU 速度计算好题分享]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148266591</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148266591</guid><author>lwewan</author><pubDate>Wed, 28 May 2025 09:15:00 +0800</pubDate><description><![CDATA[26考研408计算机组成原理——计算机系统概述，持续更新ing]]></description><category></category></item><item><title><![CDATA[存储单元相关好题分享]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148266340</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148266340</guid><author>lwewan</author><pubDate>Wed, 28 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408计算机组成原理——数据的表示和运算，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_文件管理基础认知​（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148203486</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148203486</guid><author>lwewan</author><pubDate>Tue, 27 May 2025 09:15:00 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_文件管理基础认知​_文件的结构（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148215249</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148215249</guid><author>lwewan</author><pubDate>Tue, 27 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——文件管理_文件管理基础认知​_文件是什么？（4）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148215215</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148215215</guid><author>lwewan</author><pubDate>Mon, 26 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408操作系统——文件管理，持续更新ing]]></description><category></category></item><item><title><![CDATA[26考研——进程与线程_同步和互斥（2）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/147859125</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/147859125</guid><author>lwewan</author><pubDate>Mon, 26 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408操作系统——进程与线程，持续更新ing]]></description><category></category></item><item><title><![CDATA[拓扑排序好题分享（二）]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148189269</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148189269</guid><author>lwewan</author><pubDate>Sun, 25 May 2025 09:15:00 +0800</pubDate><description><![CDATA[26考研408数据结构——图，持续更新ing]]></description><category></category></item><item><title><![CDATA[拓扑排序好题分享]]></title><link>https://blog.youkuaiyun.com/lwewan/article/details/148188589</link><guid>https://blog.youkuaiyun.com/lwewan/article/details/148188589</guid><author>lwewan</author><pubDate>Sun, 25 May 2025 09:00:00 +0800</pubDate><description><![CDATA[26考研408数据结构——图，持续更新ing]]></description><category></category></item></channel></rss>