data


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data

[′dad·ə, ′dād·ə, or ′däd·ə]
(computer science)
General term for numbers, letters, symbols, and analog quantities that serve as input for computer processing.
Any representations of characters or analog quantities to which meaning, if not information, may be assigned.
(science and technology)
Numerical or qualitative values derived from scientific experiments.

data

(data, data processing, jargon)
/day't*/ (Or "raw data") Numbers, characters, images, or other method of recording, in a form which can be assessed by a human or (especially) input into a computer, stored and processed there, or transmitted on some digital channel. Computers nearly always represent data in binary.

Data on its own has no meaning, only when interpreted by some kind of data processing system does it take on meaning and become information.

For example, the binary data 01110101 might represent the integer 117 or the ASCII lower case U character or the blue component of a pixel in some video. Which of these it represents is determined by the way it is processed (added, printed, displayed, etc.). Even these numbers, characters or pixels however are still not really information until their context is known, e.g. my bank balance is ?117, there are two Us in "vacuum", you have blue eyes.

data

(1) Technically, raw facts and figures, such as orders and payments, which are processed into information, such as balance due and quantity on hand. However, in common usage, the terms "data" and "information" are used synonymously. In addition, the term data is really the plural of "datum," which is one item of data. But datum is rarely used, and data is used as both singular and plural in practice.

The amount of data versus information kept in the computer is a tradeoff. Data can be processed into different forms of information, but it takes time to sort and sum transactions. Up-to-date information can provide instant answers.

A common misconception is that software is also data. Software is executed, or run, by the computer. Data are "processed." Thus, software causes the computer to process data.

(2) Any form of information whether on paper or in electronic form. Data may refer to any electronic file no matter what the format: database data, text, images, audio and video. Everything read and written by the computer can be considered data except for instructions in a program that are executed (software).

(3) May refer only to data stored in a database in contrast with text in a word processing document.
References in periodicals archive ?
Building relationships with data producers is an essential role a librarian must play in order to ensure library users have the ability to access the wealth of geospatial data being produced today.
Remote office backup requires more than just writing data to tape.
Although IHEs may have data pulled from a number of sources, many administrators have found that centralizing the information is key to managing it.
And when you look at the data for student achievement and that's also going up, we know we're on the right track."
-- Custom Symbol Sets and File Configurations -- Tick Data allows clients to choose the entire universe of TSX equities or select a custom symbol subset across a custom date range.
The most compelling reason for RIM managers to take an interest in data mining is simply this: the "data" in "data mining" are, for the most part, records created in the normal course of business of any organization.
NIDDK has established a repository for the archiving of data sets, as well as genetics and tissues from NIDDK sponsored clinical trials and epidemiological studies (http://pubnts06.rti.org/niddk/ home.do).
In a small business, the owner is the business to a large extent, and the underwriter would want as much relevant personal data on the owner as possible.
The Public Company Accounting Oversight Board (PCAOB) establishes an important key concept in data auditing, namely that audits of financial statements and internal controls are inseparable (Audit Standard No.
The use of the UID changes data capture, storage, use, and utility across the board.
These types of data measure levels of risk for HIV transmission and changes in risk levels over time.