Just like living things can catch viruses and fall sick, computers can also be infected by software called viruses. These computer viruses can damage files, slow down your system, or even delete important data. This post explains some common types of computer viruses and how to prevent them.
What is a computer virus?
A computer virus is a type of harmful program designed to spread from one computer to another. It can attach itself to files, emails, or even USB drives. Once inside a system, it can cause serious problems.
Common types of computer viruses
- Worms: These spread quickly without needing help from users. They often travel through networks and emails.
- Trojan horses: These look like normal software but secretly perform harmful actions in the background.
- Ransomware: This locks your files and demands payment (a ransom) to unlock them.
- Spyware: Secretly monitors what you do on your computer and can steal passwords or personal information.
- Adware: Shows unwanted ads on your computer and can slow it down.
Signs your computer may have a virus
- Slow performance
- Strange pop-up messages
- Files disappearing or getting corrupted
- Programs opening or closing on their own
- Internet browser behaving unusually
How to prevent computer viruses
- Install antivirus software: Always keep it updated.
- Do not open unknown emails or attachments.
- Avoid downloading files from untrusted websites.
- Use strong passwords and don’t share them.
- Regularly update your operating system and software.
- Scan USB drives before opening them.
Computer viruses can be dangerous, but with the right knowledge and habits, students can protect their devices. Always be careful when using computers and the internet. Prevention is better than repair!
