Data Recovery is a process of recovering the data from hardware or software components after various data disasters.  Data access becomes void after some disaster scene and special data recovery techniques are usually needed to access this lost data again. All the low level (OS level) extraction and restoration of data from hardware and software components come under the umbrella of data recovery.  It's also used in terms of recovering deleted data from operating system for the sake of forensic purposes.

Normally, data recovery services are provided to recover and restore data from Hard disk drives, Tapes, RAID, USB Flash, jazz disks, media files, documents, operating systems, file systems and on cumulative basis from Apple Mac, Linux, computers, laptops and servers.