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The Engineer
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20 Gigabits Per Second

03/29/2006 4:14 PM

Researchers from Fermilab and Caltech successfully tested a new ultrafast data transfer connection from the Office of Science of the Department of Energy. The new DOE UltraScience Net, which can reach speeds of 20 Gigabits per second, achieved an average rate of 7 Gigabits per second during a trial run. Wow.

I know movies are usually about 8 gigabits (1 Gigabyte) in size, which would take one second to download on this web. I imagine higher definition standards will boost the video file sizes. I just wonder how big the average file will be 5 years from now. Will we have files larger than a Terabyte? Will we have access to download speeds like 20 Gigabits per second?

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The Feature Creep

Join Date: Feb 2005
Location: Boston, MA
Posts: 990
#1

Benchmark

03/29/2006 4:25 PM

The Library of Congress is about 10 petabytes in size; roughly 10,000,000 gigabytes. That means you could download the entire contents in 8335 minutes at this speed. That is 140 hours or 5.75 days.
Good to know we still have room to grow. Now you just need a place to save it to on your hard drive.

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Power-User

Join Date: Feb 2006
Location: Detroit Downriver
Posts: 119
#2

Bandwidth

03/30/2006 3:54 PM

A 2 hour movie compressed to 320 x 280 pixels of H.264 mp4 will have a size of around 800MB. To transfer uncompressed high definition at 30 fps, the bandwidth needs to be much higher than it is today. Perhaps the Ultrascience net will make this possible.

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