阐述了基于C/S和B/S模式的企业管理信息系统的设计过程，如设计原则、系统结构、系统配置、系统功能设计、安全保密技术等。

The paper illustrater the design procedure of management information system based on C/S and B/S, including its design principle, system infrastructure, configuration, functions and securities.

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保密以太网卡是将数据加密技术集成到网卡上，对链路层数据提供加密和认证服务的安全设备。

The Secure Ether Network Card, which is a sort of safety, integrates the data encryption technology into the network card and provides the encryption and the authentication services to the link layer.

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为了提高系统安全性，研究了数据保密技术。

In order to improve the security of system, data security technology is also researched.

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