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Data is the plural of datum.
A datum is a statement accepted at face value]].Data about reality consist of propositions. A large class of practically important propositions are measurements or observations of a variable.
Such statements may comprise numbers, words, or images.
Etymology
The word data is the plural of Latin datum, neuter past participle of dare, "to give", hence "something given". The past participle of "to give" has been used for millennia, in the sense of a statement accepted at face value. In discussions of problems in science, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science: data are numbers, words, images, etc., accepted as they stand.
Data in psychology
Meaning of data, information and knowledge
The terms information and knowledge are frequently used for overlapping concepts. These three concepts are ill or ambiguously defined in the subject matter literature <--Anyone know what subject matter this is referring to. It may need clarifying. User:Joeblakesley-->. However, In recent interdisciplinary research a few independent specializations of these terms have been proposed.
See Information#Information is not data for the commonly made distinction between information and data.
See also
- Data management
- Data mining
- Data modeling
- Data remanence and data destruction techniques
- Database
- Datasheet
- Statistics
- Metadata
- Electronic data capture
References
- http://www.answers.com/topic/data - discussion of the correctness of using data as a singular or plural ("data is" or "data are")
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