When a file cannot be stored to disk as one contiguous block it is broken up into smaller parts whenever space is available?

When a file cannot be stored as a single contiguous block on disk, it is divided into smaller pieces known as fragments or blocks. These fragments are then stored in available spaces on the disk, which may be scattered throughout the storage medium. This process, while efficient in utilizing space, can lead to fragmentation, potentially impacting read and write performance as the disk head must move to multiple locations to access the complete file. Defragmentation tools can help reorganize fragmented files for improved performance.