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Mobile Storage: Chips Served With Hard-Disk Salsa
Tiny hard isks and massive flash memory devices give designers a spicy array of storage choices.
Date Posted: April 28, 2005 12:00 AM
TECHNOLOGIES LYING IN WAIT
Flash memory and hard drives aren't the only high-capacity, nonvolatile storage technologies. Ferroelectric RAM (FRAM) and magnetic RAM (MRAM) are two alternatives that have bounced on the horizon for many years. They offer better performance, lower cost, and higher capacity. The big problem is that they aren't here yet. They will have to build or fit into the existing infrastructure. That takes time, of course, so don't count on them in the near term.
Until then, developers will have enough choices to improve existing products and come up with new products that weren't possible without high-capacity, nonvolatile storage. Hard-disk capacities and performance are expected to rise keeping them ahead of flash memory in terms of capacity and price per gigabyte. It will be up to designers to work the tradeoffs.
TECHNOLOGIES LYING IN WAIT
Flash memory and hard drives aren't the only high-capacity, nonvolatile storage technologies. Ferroelectric RAM (FRAM) and magnetic RAM (MRAM) are two alternatives that have bounced on the horizon for many years. They offer better performance, lower cost, and higher capacity. The big problem is that they aren't here yet. They will have to build or fit into the existing infrastructure. That takes time, of course, so don't count on them in the near term.
Until then, developers will have enough choices to improve existing products and come up with new products that weren't possible without high-capacity, nonvolatile storage. Hard-disk capacities and performance are expected to rise keeping them ahead of flash memory in terms of capacity and price per gigabyte. It will be up to designers to work the tradeoffs.
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