U_boot, It is a good material

东大博士导师授课的数字通信PPT，包含本课程的基本内容,研究生学习的良师益友.-Digital communications PPT, taught by a Southeast University Ph.D.graduated from mobile communication Lab.

如何跨单元跨类地访问Delphi类的私有域-how inter-unit cross-category to category visit Delphi"s private domain

学籍管理信息系统说明-expulsion management information system descriptions

很不错的UNIX内幕介绍，很值得一看！（分成32个文档）-very good UNIX insider, is an eye-catcher! (Divided into 32 files)

数据库系统概论中所有的数据库例子以及课后习题和最后的上机实习的数据库。薛数据库的兄弟可以看看，有参考价值！-all examples of the database and after-school exercises and the final on the plane internship database. Xue database brothers can see that the reference value!

xilinx的嵌入式开发xps，virtex-4的450开发板用户手册-Xilinx Embedded Development xps, Virtex-4 of 450 development board user manual

j2ee中文教材-creates Chinese teaching materials

一种基于BREW平台的移动终端软件开发模型-a dah dak alkds fsdal fsadl fdsaf

八数码问题以及双向广度优先算法-8, as well as two-way digital breadth priority algorithm

端口基础常识大全 端口可分为3大类： 1） 公认端口（Well Known Ports）：从0到1023，它们紧密绑定于一些服务。通常这些端口的通讯明确表明了某种服务的协议。例如：80端口实际上总是HTTP通讯。 2） 注册端口（Registered Ports）：从1024到49151。它们松散地绑定于一些服务。也就是说有许多服务绑定于这些端口，这些端口同样用于许多其它目的。例如：许多系统处理动态端口从1024左右开始。 3） 动态和/或私有端口（Dynamic and/or Private Ports）：从49152到65535。理论上，不应为服务分配这些端口。实际上，机器通常从1024起分配动态端口。但也有例外：SUN的RPC端口从32768开始。 本节讲述通常TCP/UDP端口扫描在防火墙记录中的信息。记住：并不存在所谓ICMP端口。如果你对解读ICMP数据感兴趣，请参看本文的其它部分。-port basis of common sense Daquan ports can be divided into three broad categories : a) recognized ports (Well Known Ports) : 0-1023, which closely bundled with some of these services. These ports are usually clear communication of a service agreement. For example : 80-port virtually always HTTP communications. 2) Registered port (Registered Ports) : from 1,024 to 49,151. They loosely bundled with some of these services. That is to say there are many services bundled with these ports for the same used for many other purposes. For example : Many systems dynamic port from around 1024. 3) Dyn