VB写的通过串口与考勤机连接通讯的程序

this document gives the basics of gprs concepts in gerat detail

opnet学习资料，提供部分网络仿真模型。一:介绍OPNET 环境。二：执行M/M/1队列模型。三：以太网模型（Aloha，CSMA,CSMA－CD).四：TCP.五：OSPF(OPNET learning materials, providing part of the network simulation model. 1: Introduction OPNET environment. Second: The Executive M/M/1 queue model. III: Ethernet model (Aloha, CSMA, CSMA-CD). IV: TCP. 5: OSPF)

说明：  中国的手机游戏市场用户调研报告2008年度(China mobile phone game market research report of 2008 users)

利用C++实现的一个即时通讯系统的客户端。传输层采用的是TCP协议。这是本科时候的毕业设计，最后评定为优，希望对一些朋友能有所帮助。(The use of C++ implementation of an instant messaging system client. Transport layer protocol used is TCP. This is the time of undergraduate graduation project, and finally classified as gifted, in the hope that some of my friends can be helpful.)

望远镜串口通讯程序，包括Meade望远镜通讯协议文档和三篇串口通讯论文(The telescopes serial communication program, including Meade Telescope communication protocol documentation and three serial communication papers)

wince傳送簡訊的範例,利用vs 2005編譯開發(wince newsletter send an example, using vs 2005 to compile the development of)

实现LDPC编码和译码，利用C语言编写，在matlab环境中画性能曲线。(Realize encoding and decoding of LDPC codes)

进行基于C语言的BPSK通信心痛调制解调的仿真(Simulation of modulation and demodulation of heart pain in BPSK communication based on C language)

DNP3.0规约调试软件,包含源代码。可用于FTU调试，学习DNP规约。(Statute DNP3.0 debugging software, including source code. FTU debugger can be used to study the Statute DNP.)

socket 编程(socket programming)