USB 1.1 协议详简，对做usb 开发的 可以好好看看。

益勤Zyxel 3G 用户端产品PCB照片-Zyxel 3G CPE internal snapshot

中小企业的网络设计方案，可以参考下，这方面的具体资料比较小-Small and medium-sized network design, can refer to, this specific information is relatively small

高校学生科研项目管理系统的设计及实现开题报告己通过-College Student Research Project Management System Design and Implementation of opening report has been passed

sql server 数据备份文件 ，目录下data.dat 开发平台pb8.0 数据库 sql server 7.0 这是在外国自己为公司开发的业务管理系统，分店的管理，功能挺全，算法一般， 大家看看就好，本人水平一般，别笑话-sql server data backup files, directories under data.dat development platform pb8.0 7.0 sql server database This is the foreign companies to develop their business management system, branch management functions quite all, the algorithm general, we like to see, the general level I , another joke!

robotics engineering introduction

Bidirectional LEDs A novel microprocessor interface circuit is described which can alternately emit and detect light using only an LED, two digital I/O pins and a single current limiting re- sistor.

随着IPv6的迅速发展,基于IPv6的服务也越来越多,对IPv6的地址需求量也随之增加。IPv6的地址自动配置为IPv6的应用与研究提供了极大的方便,该文讨论了在Linux系统环境下IPv6的DHCP配置的过程。-With the rapid development of IPv6, IPv6-based services are a growing number of IPv6 addresses demand increased. IPv6 address auto-configuration for IPv6 applications and research provided a great convenience, the article discusses the Linux system environment under the IPv6 configuration of the DHCP process.

在顺序存储结构中，利用编号表示元素的位置及元素之间孩子或双亲的关系，因此对于非完全二叉树，需要将空缺的位置用特定的符号填补，若空缺结点较多，势必造成空间利用率的下降。在这种情况下，就应该考虑使用链式存储结构。-Storage structure in order to use the element number that the location and elements of the relationship between children or parents, so for non-complete binary tree, the location of the vacancy will be required to use specific symbols to fill the vacancy if more nodes, it is bound to cause decline in utilization of space. In this case, we should consider the use of the structure of chain stores.

包括了ＡＲＭ的bootload的详细介绍，详细分析了ＵＢＯＯＴ的移植和编写．另外还介绍了ＡＲＭ＿ＬＩＮＵＸ驱动的编写-err

LDPC_OFDM无线高速数据传输系统研究-LDPC_OFDM wireless high-speed data transmission system