Flash memory vs. magnetic storage

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Concept: Flash memory vs. magnetic storage
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  Flash memory will become cheaper in 3-5 years time

The assumption that Flash replaces HDDs in laptops is based on price/GB parity of today's storage requirements in 3-5 years time. In 3-5 years the amount of storage required in laptops will have increased by a multiple (Hi-Def content and new software) making these price comparisons meaningless.

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  Flash prices seem to be going up not down

The price assumption above is based on the per GB Flash price falling 50% per annum in perpetuity.....Flash prices are currently increasing.....(Aug '07).

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  Hybrids are better

Hybrid drives capture most of the benefits of Flash without requiring consumers to pay a huge premium.

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  Reduction in power consumption is meaningless in the broader perspective

The power consumption reduction is minimal when considered as a percentage of total laptop power consumption. The CPU and the screen backlight swamp HDDs in regard to power consumption.

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  Flash has too low a life cycle

The number of times that Flash memory can be written to is too low to function as the core storage media based on a 3 year life cycle. Admittedly, this is an issue that is likely to be resolved in the future.

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