Back Up: secure computer components, devices and recording media that retain digital data used for computing for some interval of time, separate from the main computer system.

Archive: secure storage of rarely used data that may be accessed in the future, separate from the main computer system

Mobile Storage: off site secure storage system used to store data remotely

Data Recovery: is the process of salvaging data from damaged, failed, corrupted or inaccessible primary storage media when it cannot be accessed normally.

Disaster Recovery: the process of regaining access to the data, hardware and software necessary to resume critical business operations after a natural or human-induced disaster