The system bus is a conduit that funnels data between the processor and other parts of a PC.

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Google's transit directions pulled in data from multiple services -- you could take a city bus to an unrelated train system traveling across state lines.

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The all-aluminum enclosure protects valuable data from the bumps and bruises encountered on the road, and the system is USB 3.0 or FireWire bus-powered for easy storage on the go.

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