Hard Disk Drive (HDD) is one of the most widely used storage accessory, which uses magnetic recording to store data.
硬盘驱动器是目前应用最广泛的存储设备之一,而硬盘驱动器是采用磁记录来存储和读取数据的。
参考来源 - 磁记录中的PRML技术研究及其应用·2,447,543篇论文数据，部分数据来源于NoteExpress
ABBREVIATION for hard disk drive 硬盘驱动器 [计算机]
Therefore, seek time continues to be the largest source of latency in HDDs.
因此，寻道时间一直是HDD的延迟时间的最主要来源。
But although SSD costs are declining every quarter, SSDs are still more expensive than HDDs.
但是，虽然SSD的成本每个季度都在递减，但是SSD仍然比HDD昂贵。
And this type situation has only worsened as the density and capacity of HDDs have increased.
而且这种状况只会随着HDD密度和容量的增加而变得更坏。
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