Shulou(Shulou.com)06/02 Report--

What this article shares with you is about the damage caused by computer viruses. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article. Let's take a look at it with the editor.

Computer viruses mainly cause "destruction of programs and data". As long as any virus invades the system, it will have varying degrees of impact on the system and applications; light will reduce computer efficiency, occupy system resources, serious can lead to data loss, system crash.

Computer viruses mainly cause "destruction of programs and data".

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 artificial, destructive, contagious and latent programs that destroy computer information or systems. It does not exist independently, but is hidden in other executable programs. After the virus in the computer, the light will affect the running speed of the machine, and if it is heavy, the system will be destroyed.

As long as any virus invades the system, it will affect the system and applications to varying degrees. The light ones will reduce the computer work efficiency and occupy the system resources, while the serious ones can lead to data loss and system crash.

When the virus invades the computer, it is often extremely destructive, which can destroy the data and information, and even cause a large area of computer paralysis, causing great losses to computer users. Such as common Trojans, worms and other computer viruses, can invade the computer on a large scale, bringing security risks to the computer.

Harm

Nowadays, computers have been used in various industries, computers and computer networks have become an important part of people's lives, and viruses will destroy and tamper with computer data, and theft will cause serious network security problems. affect the efficiency of the use of the network.

(1) if the virus is activated, the computer will have a great reaction; most viruses will directly destroy the important information and data of the computer when they are activated, it will directly destroy the CMOS settings or delete important files, format the disk or rewrite the directory area, and rewrite the files with "junk" data. A computer virus is a piece of computer code, which must occupy the memory space of the computer, and some large viruses still copy themselves inside the computer, resulting in a substantial reduction in computer memory. when the virus is running, it also preempts the interrupt, modifies the interrupt address and adds the virus's "private goods" in the interrupt process, which interferes with the normal operation of the system. After the virus invades the system, it will automatically collect users' important data, steal and leak information and data, resulting in a large number of leakage of user information, bringing inestimable losses and serious consequences to users.

(2) consume memory and disk space. For example, if you do not access the disk, but the disk light flashes wildly, or when you are not running many programs, you may find that the system has taken up a lot of memory, which may be caused by the virus; many viruses are resident in memory in the active state, and some file viruses can infect a large number of files in a short time, and each file is lengthened to varying degrees, resulting in a serious waste of disk space. Normal software often needs to be tested by many people for many times to improve, and computer viruses are usually sent out quickly after individual people finish on a computer, so the harm that the virus brings to the computer is not only the virus expected by the manufacturer, but also caused by some computer virus errors.

(3) computer viruses cause serious psychological pressure on users. The proliferation of viruses makes users nervous and always worried about being infected by the virus. Because most people do not know much about the virus, once there are phenomena such as computer crashes and abnormal software operation, people often suspect that these phenomena may be caused by computer viruses. According to statistics, it is a common phenomenon for computer users to suspect that "the computer has a virus". More than 70% of the computer users are worried that their computers have invaded the virus, but in fact, all the phenomena that occur in the computer are not caused by the virus.

These are the damage caused by computer viruses, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.