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Chapter 15. Working with Disks and Disk ... > Improving Performance with Disk Defr...

Improving Performance with Disk Defragmenter

Information written to a hard disk is not necessarily stored in a contiguous (adjacent) block. Rather, fragments of information are more likely spread across the disk wherever the system can find room. The more you use the hard disk, the more fragmented the disk becomes. Obviously, the drive takes more time to hunt for information located in several places than it takes to fetch the same information from a single location. Because of this extra time, disk fragmentation can slow the computer's operation considerably.


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