Since ARM-based chips produce less heat Mr Gopalakrishnan said more could be placed on each "pizza-box-shaped" server rack unit.

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Potentially better server hardware unit growth.

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Dell was the only top-3 server provider to have positive unit growth in the quarter.

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To buy text for the SoftBook, you plug the unit into the nearest phone line, and it then dials into the proprietary SoftBook download server.

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