Subject
Computer Science
Topic
Computer Hardware
What does a 'defragmentation' utility do for a hard disk drive (HDD)?
What does a 'defragmentation' utility do for a hard disk drive (HDD)?
a)
It physically rearranges the magnetic particles on the platter.b)
It reorganizes the data on the drive so that parts of a file are stored in contiguous blocks.c)
It deletes temporary files to free up space.d)
It checks the drive for physical errors.Explanation
Over time, as files are created and deleted, their parts can become scattered across different physical locations on the platter (fragmentation). Defragmentation consolidates these parts, which can improve read performance on an HDD because the read/write head doesn't have to move as much to access a complete file. This is generally not needed for SSDs.Related questions
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