文档介绍：外文原文
computer virus attacks and prevention techniques
With puter in all areas of social life, the extensive use puter virus attacks and prevention techniques are expanding. According to reports, the world suffer puter virus infections and attacks of hundreds of millions of events, which seriously interferes with the normal life of human society, to works and systems have brought tremendous potential threats and destruction. At the same time, the virus also in the field of war, widely used in the Gulf War, the recent Kosovo war, both sides have puter viruses to attack enemy, destroy the opponent'works and weapons control systems, to a certain political objectives and military objectives. Can be expected, with puter, the growing popularity of use, in-depth to puter viruses will be more and more national attention.
    puter virus is a group by copying itself to infect other software programs. When the program runs, the embedded virus also will be run and infect other programs. Some viruses do not attack with a malicious code, but more carriers of the virus carrying code, if it is pre-configured environment for excitation, to infection and destruction. piled from 80 of the first "worm" virus program so far, the world has appeared in many different types of viruses.
    It has long been the main goal puter design is the pursuit of improved information processing capabilities a