Solid state drives (SSDs) have greater reliability and durability than hard disk drives (HDDs), because they have no moving parts. Data transfer rates can be faster, and booting a large operating system such as Windows Vista can be quick work for SSDs. In addition, they consume less power compared to HDDs, and they are quieter and lighter. But HDDs are still much larger in capacity, and their cost-per-gigabyte is a fraction of what it is for SSDs. SanDisk has introduced 64-GB SSDs that the company plans to have ready for shipment to manufacturers and to retail outlets by the end of this year
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