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This article will explain in detail what a computer virus is. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Computer "virus" generally includes three parts: guidance, infection and performance. A computer virus is a group of computer instructions or program codes that programmers insert into computer programs that destroy computer functions or data, which can affect the use of the computer and replicate themselves. it has the characteristics of transmission, concealment, infection, latent, excitable, expressive or destructive.

Computer "virus" generally includes three parts: guidance, infection and performance.

Computer virus (Computer Virus) is a group of computer instructions or program codes that programmers insert into computer programs that destroy computer functions or data, can affect the use of the computer, and can copy themselves.

Computer viruses are contagious, concealed, infectious, latent, excitable, expressive or destructive. The life cycle of computer virus: development period, → infection period, → incubation period, → attack period, → discovery period, → digestion stage, → extinction period.

According to the existing media classification, computer viruses can be divided into three types: guided virus, file virus and mixed virus; according to the link mode, they can be divided into three types: source virus, embedded virus and operating system virus; according to the system classification of computer virus attack, it can be divided into attack DOS system virus, attack Windows system virus, attack UNIX system virus. Today's computer viruses are constantly pushing through the old and bringing forth the new, including some unique new viruses that are temporarily unable to be classified according to conventional types, such as Internet viruses (spread through the Internet, some carry more and more virus data), e-mail viruses and so on.

Computer virus is recognized as the number one enemy of data security. Since 1987, computer virus has been paid more and more attention all over the world. Computer virus was first discovered in China in 1989. At present, the new virus is developing in the direction of more destructive, more secret, higher infection rate, faster spread speed and so on. Therefore, we must deeply study the basic knowledge of computer viruses and strengthen the prevention of computer viruses.

This is the end of this article on "what is a computer virus?". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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