All componenets will break (at some point); Computers go wrong (You may have noticed)
Data is very valuable to businesses.
Organisations need to ensure that the business does not fail because a hard disk or server failed
How is this different from backing up?
Archived data is old data that is not needed everyday. (eg Students that ha.ve left the school)
In order to save space, it is copied onto another storage media (eg DAT tape or CD) and stored securely.
However, as it may be needed for reference one day, it must be retrievable