linux系统下一个简单的聊天程序，主要用socket和select实现的

ZLG-GUI源代码完整版12－FONT24_32.-ZLG-GUI source code full version of 12-FONT24_32.

LINUX下串口编程-serial programming in linux

可扩展消息出席协议（XMPP）的完全讲解，文档附带例子，通俗易懂。-Extensible Messaging and present Protocol (XMPP) fully explain, the document with examples, easy to understand.

利用QT创建对话框的一个例子，希望对初学QT的同仁们有帮助-The use of QT dialog box to create an example, in the hope that the colleagues QT beginner help

大学操作系统课程实验：Linux下实现的一个shell解释器。能够比较完整完好地执行Linux下的普通命令、重定向命令、管道命令等多种命令。-Experimental University of the operating system: Linux under a shell interpreter. Good to be able to complete the implementation of Linux under the general command, redirect command, a command such as command pipeline.

多线程程序作为一种多任务、并发的工作方式，有以下的优点： 　　1) 提高应用程序响应。这对图形界面的程序尤其有意义，当一个操作耗时很长时，整个系统都会等待这个操作，此时程序不会响应键盘、鼠标、菜单的操作，而使用多线程技术，将耗时长的操作（time consuming）置于一个新的线程，可以避免这种尴尬的情况。 　　2) 使多CPU系统更加有效。操作系统会保证当线程数不大于CPU数目时，不同的线程运行于不同的CPU上。 　　3) 改善程序结构。一个既长又复杂的进程可以考虑分为多个线程，成为几个独立或半独立的运行部分，这样的程序会利于理解和修改。 -multithreaded process as a multi-task, complicated by the way, has the following advantages : 1) improve application response. This graphical interface is especially meaningful, when a very long time-consuming operation, the entire system will wait for the operation, this procedure will not respond to keyboard, mouse, the menu of operations, and the use of multithreading technology, long will be time-consuming operation (time consuming) under a new thread, avoided this embarrassing situation. 2) multi-CPU system more effective. When the operating system would ensure that not more than a few threads CPU number of different threads running on different CPUs. 3) to improve program structure. A long and complex

grub源码分析文档，讲的很详细，值得一看，对你看grub有很大的好处-grub-source analysis of documents, said very detailed and worth a visit, look for your grub has considerable benefits

Linux系统管理白皮书-Linux System Management White Paper

unix文件系统模拟,用vc实现.一个非常简单的文件系统管理模拟.

S3C2410触摸屏测试程序 -S3C2410 touchscreen testing procedure