Seven Wonders of the IT World

The fastest supercomputer. The most intriguing data center. The constantly changing core at the heart of Linux. Take a tour of the most impressive and most unusual marvels of the IT world.

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Computer farthest from Earth:

NASA's Voyager 1 satellite

Distance from Earth: Voyager is three times farther away than Pluto. That's to say at least 4 billion kilometers, times three.

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NASA's Voyager satellite computes at the edge of space as we know it

Distance from the sun: 15.44 terameters.

Distance logged per day: 1 million miles.

Years old: Almost 30, having launched on Sept. 5, 1977.

Places it's dropped by: Jupiter and Saturn, on the way to the edge of space as we know it.

How it communicates with Earth: Uses NASA's Deep Space Network, a system of antennas around the Earth. There's no IM out here: Signals traveling at light speed take 14 hours one-way to reach Voyager.

Daily to-do list: Collects data on solar wind, energetic particles, magnetic fields and radio waves.

Powered by: Radioisotope thermoelectric generators.

Power needed: About 300 watts, the amount of power needed for a bright lightbulb.

Next: Google's Ultra-mysterious Data Center

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