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The term data refers to groups of information that represent the qualitative or quantitative attributes of a variable or set of variables. Data (plural of "datum", which is seldom used) are typically the results of measurements and can be the basis of graphs, images, or observations of a set of variables. Data are often viewed as the lowest level of abstraction from which information and knowledge are derived. Raw data refers to a collection of numbers, characters, images or other outputs from devices that collect information to convert physical quantities into symbols, that are unprocessed. The word data (pronounced /'de?t?/ DAY-t?, /'dæt?/ DA-t?, or /'d??t?/ DAH-t?) is the Latin plural of datum, neuter past participle of dare, "to give", hence "something given". In discussions of problems in geometry, mathematics, engineering, and so on, the terms givens and data are used interchangeably. Also, data is a representation of a fact, figure, and idea. Such usage is the origin of data as a concept in computer science data are numbers, words, images, etc., accepted as they stand. In English, the word datum is still used in the general sense of "something given". In cartography, geography, nuclear magnetic resonance and technical drawing it is often used to refer to a single specific reference datum from which distances to all other data are measured. Any measurement or result is a datum, but data point is more common,[1] albeit tautological. Both datums (see usage in datum article) and the originally Latin plural data are used as the plural of datum in English, but data is more commonly treated as a mass noun and used with a verb in the singular form, especially in day-to-day usage. For example, This is all the data from the experiment. This usage is inconsistent with the rules of Latin grammar and traditional English (These are all the data from the experiment). Even when a very small quantity of data is referred to (One number, for example) the phrase piece of data is often used, as opposed to datum. Many style guides[2] and international organizations, such as the IEEE Computer Society,[3] allow usage of data as either a mass noun or plural based on author preference. Other professional organizations and style guides[4] require that authors treat data as a plural noun. The Air Force Flight Test Center, specifically states that the word data is always plural, never singular.[5]
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Data Subcategories
Data Articles
You Can Market Your Website For Free With Article Marketing
by Lance Rush
Sep 01, 2010
If you have never used article marketing when promoting your website you have been missing out on a valuable tool in internet marketing. Article marketing is an effective way of creating backlinks and drawing attention to your online business. ...
Perfman HR : Manage Your Online Presence
by Perfman HR
Aug 30, 2010
perfmanhr-managing-your-web-presenceIf you think that people don't Google you, think again. People do use search engines to learn about you before they meet you.
Recently I heard a startling claim: 45% of employers use search engines...
Solution to '-39 error (Logical End-of-file reached during read operation)' Error in Mac system
by robin watson
Aug 19, 2010
Every single thing you do with a computer, it interprets a systematic process inside. As an end user, we may never know the series of operations inside a Mac computer while we are just reading a file or writing into it. This is the theme of the artic...
Enhance Productivity By Extracting Resumes using Parsing Software
by samta sharma
Aug 18, 2010
The biggest challenge faced by the entrepreneurs these days is recruitment. But there is an unseen trouble which is usually neglected and that is extracting resumes and transferring them to the database. This problem is much bigger than the ear...
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