The process or reorganizing and rewriting files so that they occupy one large continuous area on your hard disk rather than several smaller areas.
The process of reorganizing data on disk by making file data blocks physically adjacent to reduce access times.
The process of optimising read performance by rearranging the clusters on a disk so that files are stored contiguously.
Defragmenting a hard drive on a computer organizes the files on the hard drive so that they can be accessed faster, improving system performance.
Places related data in contagious block improving hard drive performance.
The process of rearranging files on a hard disk so that all portions of a file are located together in one or more adjacent sectors on the disk.
Defragmentation is to reorganize a disk by putting files into contiguous order. Because the operating system stores new data in whatever free space is available, data files become spread out across the disk as they are updated. This causes extra read/write head movement to read them back. Periodically, the hard disk should be defragmented to put files back into order.
Over time, the files on a computer's hard disk drive become disorganised. Running a defragmentation program restores order and speeds up the reading and writing of data.
The process of rewriting parts of a file to contiguous sectors on a hard disk to increase the speed of access and retrieval. When files are updated, the computer tends to save these updates on the largest continuous space on the hard disk, which is often on a different sector than the other parts of the file. When files are thus fragmented, the computer must search the hard disk each time the file is opened to find all of the file's parts, which slows down response time. See also: fragmentation
In the context of administering computer systems, defragmentation (or defragging) is a process that reduces the amount of fragmentation in file systems. It does this by physically reorganizing the contents of the disk in order to store the pieces of each file close together and in order (contiguously). It also attempts to create larger regions of free space using compaction to impede the return of fragmentation.