about 8 hours,If no computer,many works will be stopped,because we depend on it to finish our work,such as acquiring information,and so on.

about 4 hours.Because the morning to do experiments！

About 8 hours. Many work lies on the computer today, too much work will paused without computer.

9 hours at least

about three hours to look what have happened in the post few days.

应助达人

If I'm working that day, the time I face the computer must be more than 12 hours a day!

I spend about 10 hours on computer everyday. I read books or watch TV if don't have computer.
I spend less time on reading or writing after buying computer. Computer brings to me both advantages and disadvantages.

all day long till sleep

sometime，I look at the computer does no what to do on the weekend.

at least 10 hours
I have to work with computer and when i come back home i always surfering the internet or watch TV online
if no computer I will reading book and play guitar