As a result, the disk access time is much longer when reading data in random order than when reading in sequential order.

因此，与按顺序读取相比，按随机顺序读取数据时的磁盘访问时间要长得多。

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Computer DVD devices "may never completely replace the disk drive and floppy disks because access time will always be slower on DVD, " he says.

CNN: ASIANOW - Asiaweek