Security models lay the groundwork on which the secure computer systems are found.
安全模型是构造安全计算机系统的基础。
Before 1970, in order to protect the information security in computer systems, mandatory and discretionary access control policy had been widely applied in secure computer systems.
在上世纪七十年代以前，为保证计算机系统中的信息安全性，自主存取控制和强制存取控制策略在计算机多安全级系统中得到了广泛的应用。
Fortunately, cryptographic techniques already exist to secure messages from one ubiquitous computer to another and to safeguard private information stored in networked systems.
幸运的是，能够确保邮件从一台无处不在的计算机到另一台以及到存储在网络系统上的保密私人信息的加密技术已经存在。
Serious consequences could result by failure to secure your computer systems.
严重的后果可能是对计算机系统中的数据保护失败。
You should take privacy policies and how you store data about your customers very seriously. Serious consequences could result by failure to secure your computer systems.
您应该采取隐私政策，您以何种方式来存储您的客户信息是一个很重要的问题。
The importance of secure operating systems in computer security iscausing more and more attention.
安全操作系统在计算机安全中的重要作用越来越引起人们的关注。
Operating system is the most important software in any computer systems, which plays the role as the support and base for all the other systems, so the Operating system must be secure and reliable.
操作系统是计算机最重要的软件系统，是高层应用软件运行的支撑和基础，所以操作系统必须是一个安全可靠的软件系统。
Operating system is the most important software in any computer systems, which plays the role as the support and base for all the other systems, so the Operating system must be secure and reliable.
操作系统是计算机最重要的软件系统，是高层应用软件运行的支撑和基础，所以操作系统必须是一个安全可靠的软件系统。
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