qigangdain

介绍了word的使用技巧，很是值得一看，很有实用价值(introduce the word method ,very useful)

最好的点对点（PPP）学习文档，当年学习总结，希望对初学者有所帮助。(The best peer to peer (PPP) learning documents, then learning summary, I hope to help beginners.)

资深工程师写的关于运放噪声分析的文档,对模拟电路工程师很有价值!(Senior engineer to write on the op-amp noise analysis of the document, right analog circuit engineers valuable!)

关于485通讯接口若干问题的汇总及相应的解决办法.(About 485 communication interface, a summary of a number of issues and corresponding solutions.)

简单易懂的photoshop学习书籍，欢迎大家下载，适合初学者学习(photoshop study,welcome to download)

DHCP（Dynamic Host Configuration Protocol，动态主机配置协议）是IETF为实现IP的自动配置而设计的协议，它可以为客户机自动分配IP地址、子网掩码以及缺省网关、DNS服务器的IP地址等TCP/IP参数。了解DHCP工作过程可以帮助我们排除有关DHCP服务遇到的问题。DHCP 协议是基于UDP层之上的应用，本文结合抓报所得数据分析DHCP协议实现原理(DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is the IETF protocol designed for automatic configuration of IP for the client, it can automatically assign the IP address, subnet mask, and default gateway, DNS server IP addressand other TCP/IP parameters. Understanding of the DHCP the work process can help us to rule out problems encountered about DHCP service. The DHCP protocol is based on the the UDP layer on top of the application, combined with a grasp reported income data analysis DHCP protocol implementation principle)

说明：  MATLAB函数速查手册, 列出来所有Matlab函数，可以作为手册，需要的时候，翻开查询。(Matlab Function Lists)

一篇关于如何提高单片机运行速度的文章!(An article on how to improve the operating speed of Singlechip article!)

this is some program for operating system

版图验证工具calibre的rule deck写法教程(Layout verification tool calibre the rule deck writing tutorial)