Well, using a computer won't automatically use either RAM or hard drive space. It really just depends on what you download in respect to HDD space, and as for RAM, that's completely reusable.
Now, if you're talking about the 5gb cap on most mobile broadband cards, that will get you an AVERAGE of about 10,000 pageloads. Playing games or streaming music/video will eat straight through that limit in a few hours, however. And most major providers charge pretty large overage fees, based on the MB over the limit.
6 hours equal 360 minutes.
6 hours equal 0.0013889 months.
Ten hours.
Two hours
150 hours
35000 seconds is equal to 9 hours and 43 minutes.
144 hours is equal to 6 (six) days.
Two days equal 48 hours.
3514 hours is equal to 146 days plus an additional 10 hours.
9.75 hours.
350,000 hours.
2.4722 hours.