1- Long hours at a computer can harm your eyes,
2- computers affect to the body that make the blurred vision,
3- computers affect to the body that make the excessive tears,
4- computers affect to the body that make the dry eyes and excessive blinking or squinting.
5- computers affect to the body that make the headaches
6- computers affect to the body that make the neck or shoulder pain,
7- Repairs can be costly
8- Lots of things to pay for, electricity, internet, etc.
9- You can easily loose personal info (credit card , telephone numbers, etc.)