What are their main disadvantages? Are there any that you have met using your computer?

Some main disadvantages of computers include:

• Health issues (e.g., eye strain, carpal tunnel syndrome)
• Addiction
• Privacy concerns
• Cybersecurity threats (e.g., viruses, hacking)
• Dependence on technology

Personally, I have encountered issues with privacy concerns and cybersecurity threats, such as receiving spam emails and worrying about data breaches.