data cleaning - the process of removing or improving out-of-date data, Valid - This type of information is useful, generally because it fits the need to which it is being put, biased - This type of information presents a one-sided view, Comparable - this type of information can be compared with similar information, Anonymous - Data that often represented by asterisks, Braille - A form of communication that uses dots on a page and is read by touch, podcast - a sound file that can be listened to online or downloaded, intranet - a network that is not connected to the internet and is only available to those in the organisation, extranet - a website that provides restricted access to resources for an authorised set of users, optical - a form of storage media that is written and read by laser,

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