NEW YORK (Reuters) - Within the next year, PC makers are expected to start selling a powerful new generation of home computers that run on 64-bit microchips.

But consumers might initially find little extra value in these PCs, despite their exponentially more powerful features.

Companies and researchers have long used 64-bit computers for such tasks as simulating nuclear blasts or managing big stores of customer data. These computers can crunch numbers far more deftly than the PCs on most people's desks.

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