星期六股票, 环球最资讯
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1、答A computer virus is a type of malicious software that is designed to infect a computer system and spread from one computer to another. It can be spread through various means, such as email attachments, infected websites, or through file sharing networks.Once a computer is infected with a virus, it can cause a range of harmful effects. Some viruses are designed to steal personal information, such as passwords or credit card numbers. Others may corrupt or delete files, slow down the computer"s performance, or even render the computer completely unusable.To protect against viruses, it is important to have up-to-date antivirus software installed on your computer. This software can detect and remove viruses, as well as provide real-time protection against new threats. It is also important to regularly update your computer"s operating system and other software, as updates often include security patches that can help protect against viruses.In addition to antivirus software, it is important to practice safe browsing habits. This includes being cautious when opening email attachments or clicking on links, as these can often be sources of virus infections. It is also important to only download files from trusted sources and to be cautious when using file sharing networks.Overall, viruses can be a serious threat to computer security, but by taking the necessary precautions, you can greatly reduce the risk of infection.
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