In IT, fragmentation means files being divided into pieces and stored at different places on the disk.
This is part of the normal process of running a computer, which aims to save storage space.
However, it s an inefficient use of storage space and creates problems by making files slower to read and write, resulting in a slower running computer.
These issues can be reduced using defrag, short for defragmentation, is a computer process to reduce the amount of fragmentation on a file storage system.
