{i} utility program that combines files that are scattered over different areas of computer memory into one complete file and combines available memory segments into one block
Defragmentation is the rewriting of all the parts of a file on contiguous sectors When files on a hard disk drive are being updated, the information tends to be written all over the disk, causing delays in file retrieval Defragmentation reverses this process, and is often achieved with special defragmentation programs that provide up to 75 percent improvement in the speed of disk access and retrieval