Full Backup: The process of copying every file and piece of data from a particular system or storage device. This backup type creates a comprehensive replica of all directories, files, and databases, ensuring that all information can be restored from this single backup if necessary. While full backups can be more resource-intensive than other types (like incremental or differential backups), they provide a complete snapshot of data at a particular point in time and are essential for disaster recovery and business continuity purposes. Full backups are often scheduled regularly to ensure data is consistently protected.