In computing tags (sometimes known as categories) are a way of organising some, usually human readable, data. Two common examples of data are:
- Digital Photos
- Emails
A piece of data (such as an email) can have one or more tags. It is useful to be able to have multiple tags per item because you might have an email that is tagged as friends and also sport.
Related Terms: Folders
Folders (sometimes known as directories) are another way to organise such data.
Read our article Comparison of Tags versus Folders to see the differences.