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计算视网络的不断发展和普及,使我们享受到了无穷的信息资源。同时,计算机网络在提高数据传输效率,实现数据集中、数据共享等方面也日益发挥着越来越重要的作用,网络与信息系统已逐步成为各项工作的重要基础设施。为了确保各项工作的安全高效运行,保证网络信息安全以及网络硬件及软件系统的正常顺利运转是基本前提。因此计算视网络和系统安全建设就显得尤为重要。特别是通过网络传播的计算机病毒,能在很短的时间内使整个计算机网络处于瘫痪状态,给我们造成的损失往往是无法估计的。因此,防止病毒的侵入要比发现和消除病毒更重要。
As the constant development and popularization of computing networks, we have enjoyed endless information resources. At the same time, computer networks are playing more and more important roles in improving data transmission efficiency, realizing data concentration and data sharing. Network and information systems have gradually become an important infrastructure for various tasks. In order to ensure the safe and efficient operation of various tasks, it is a basic precondition to ensure the safety of network information and the normal operation of network hardware and software systems. Therefore, it is very important to calculate the visual network and system security. In particular, the spread of computer viruses over the Internet can paralyze the entire computer network in a very short period of time, causing us losses that are often unpredictable. Therefore, preventing the invasion of the virus is more important than detecting and eliminating the virus.