Information often needs to be kept safe for later use.

 This information may be

 Storage is the means of holding information for use at a later date

 Examples:

Input:

An oil company has paid millions for underground testing to take place in their bid to find new oil.

The raw data gathered during the tests may be kept in storage in case a more clever way of processing the data comes up in the future.

Process storage: 

This is not a common form of storage, but nevertheless sometimes essential. For example if you are making changes to an important database and halfway through the computer shuts down – what state is your request in? – did it happen? To cover things like this, some databases store temporary tables so that it can ‘roll back’ if required.

Output:

By far the most common form of information to be stored. Output information such as films are stored on tapes and DVD. Music is kept on CD’s. Data is stored on hard drives and backup tapes.