If you are touch-typing, your eyes should be on the 3rd to 5th word beyond what you are currently typing.
0 inches
If you need glasses, you should wear whatever glasses reduce eye strain while using the computer. If you are going to use zero power, then just do not wear any glasses at all.
you should put a cushion on your back and every half hour stand up and move about.
dont use a computer
No.They have them internally.
It is good to look at a distant object now and again while using a computer helps because when you are just focusing on a computer screen all day your eyes start to hurt and get tight, but every hour or so you should look at something far away , it will get your eyes back in focus.
Yes, you can using USB.
Yes, you can using USB.
i believe it would be the computer.
Absolutely, I do everyday!
I've fallen asleep WHILE using a computer, so I'm going to say yes.
nop im 7