The computer virus knows that it is definitely not good for the computer. In the current situation of more and more personal information on the computer, the emergence of the virus will threaten everyone's information security, then what is a computer virus? What are the characteristics of computer viruses? The following decoration home decoration network Xiaobian will give you detailed answers, I hope to be helpful to everyone.
What is a computer virus?
Computer viruses (Computer Virus) is the code function or destruction of computer data compilers inserted in a computer program, can affect the computer, a set of computer instructions or program code for self-replicating. Computer viruses are spread, concealed, infectious, latent, stimulating, expressive or destructive. The life cycle of computer viruses is development period → infection period → incubation period → attack period → discovery period → digestive period → extinction period.
A computer virus is a program, a piece of executable code. Like biological viruses, they have the characteristics of biological viruses such as self-reproduction, mutual infection, and activation and regeneration. Computer viruses have unique replication capabilities that can spread quickly and are often difficult to eradicate. They can attach themselves to various types of files, and as files are copied or transferred from one user to another, they spread along with the file.
What are the characteristics of computer viruses?
1, reproductive: Computer viruses can be like a biological virus propagation, when the normal procedure is run, it also runs its own copy, whether the reproduction, infection is characterized by a certain program to determine the primary condition for the computer viruses.
2 , destructive: computer poisoning, may cause normal programs can not run, delete files in the computer or suffer different degrees of damage. Destroy the boot sector and BIOS , and the hardware environment is destroyed.
3 , contagious: computer virus infectivity refers to computer viruses by copying other programs to copy their own copies or their variants to other non-toxic objects, these objects can be a program or one of the systems part.
4 , latent: computer virus latency refers to the ability of computer viruses to be attached to other media parasitism, after the invasion of the virus lurking to the condition of maturity, the computer will slow down.
5 , concealment: computer viruses have a strong concealment, can be detected through a small number of virus software, concealed computer viruses are hidden and volatile, such viruses are very difficult to handle.
6, can be triggered: the preparation of human computer virus, the virus is generally programmed to trigger a number of conditions, for example, the system clock to a time or date, the system is running some programs. Once the conditions are met, the computer virus will "sit" and the system will be destroyed.
The above is what Xiaobian brought to you. What is a computer virus? What are the characteristics of computer viruses? I believe that everyone has a basic understanding of what is a computer virus after reading this article. If you want to know more about decoration, please click to enter the decoration knowledge channel .
More related wonderful reading:
How to make a computer virus? Simple computer virus making method
What are the popular computer viruses? The world's top ten computer viruses
How to prevent computer viruses? Computer virus prevention measures
What is the harm of computer viruses? Detailed details of the harm of computer viruses
What are the common computer viruses? Common computer virus types
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