This article first analyzes the security of computer network, introduces basic technology that guarantee the security and emphasizes that cryptography is the core technology.
本文第一章分析计算机网络的安全性，介绍保障计算机网络安全的基本技术，指出密码技术是网络安全技术的核心。
Information technology is an integration of computer and network, as well as many applications as one of the basic courses, teaching information is a practical stronger course.
信息技术是一门集成计算机、网络、以及许多应用软件为一体的信息教学基础课程，也是一门实践性比较强的课程。
The basic structure of modern petroleum exploration instruments is distributed data acquisition and control system (DDACS) based on computer network technology.
现代石油勘探仪器的基本结构是以计算机网络技术为中心的分布式数据采集与控制系统。
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