background

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background

1. Art
a. the plane or ground in a picture upon which all other planes or forms appear superimposed
b. the parts of a picture that appear most distant
2. Physics low-intensity radiation as, for example, from small amounts of radioisotopes in soil, air, building materials, etc.
3. Electronics
a. unwanted effects, such as noise, occurring in a measuring instrument, electronic device, etc.
b. (as modifier): background interference
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

background

[′bak‚grau̇nd]
(communications)
Picture white of the facsimile copy being scanned when the picture is black and white only.
Undesired printing in the recorded facsimile copy of the picture being transmitted, resulting in shading of the background area.
Noise heard during radio reception caused by atmospheric interference or the operation of the receiver at such high gain that inherent tube and circuit noises become noticeable.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

background

(operating system)
A task running in the background (a background task) is detached from the terminal where it was started (and often running at a lower priority); opposite of foreground. This means that the task's input and output must be from/to files (or other processes).

Nowadays this term is primarily associated with Unix, but it appears to have been first used in this sense on OS/360.

Compare amp off, batch, slopsucker.

background

(jargon)
For a human to do a task "in the background" is to do it whenever foreground matters are not claiming your undivided attention, and "to background" something means to relegate it to a lower priority. "For now, we'll just print a list of nodes and links; I'm working on the graph-printing problem in the background." Note that this implies ongoing activity but at a reduced level or in spare time, in contrast to mainstream "back burner" (which connotes benign neglect until some future resumption of activity). Some people prefer to use the term for processing that they have queued up for their unconscious minds (often a fruitful tack to take upon encountering an obstacle in creative work).
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

background

(1) The image on screen at all times. See wallpaper.

(2) The non-interactive processing in the computer. See foreground/background.

(3) The base, or backdrop color. In order to distinguish any image on screen, whether text or graphics, there must be a contrasting background color.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
It builds a background for the students that allows them a meaningful entrance into the text, creating a learning space where they can critically engage Lorde's anger and arguments in a much more productive manner.
Themes continued to emerge during this meeting, and the researchers checked continually to see that each theme was reflected in comments from a majority of participants in the group being considered (e.g., those with teaching background or with no teaching background).
A melanic (dark pigmented) peppered moth sits on a birch tree by a light-colored one camouflaged by crypsis (color matching with background).
The presenter reviews the qualifications required for a law enforcement career, underscoring the need for trustworthy individuals whose background can withstand the close scrutiny of a thorough investigation.
Out of 22,000 undergraduates, 39 percent have identified themselves as European-Americans, 31 percent as Asian-Americans, 15 percent as Hispanics, seven percent as African-Americans and one percent as Native Americans (the remaining seven percent have declined to identify their racial backgrounds).
I have my position because my background is multifaceted, not narrowly focused.
The results of the survey are presented in the following categories: supported employment program start-up/conversion, present personnel roles and educational backgrounds, projected personnel roles, personnel training needs and collaborative efforts with school systems.
Table F in Appendix II shows that such involvement by the CEO varies by CEO background. Proportionately more CEOs with some background in finance/accounting are directly involved in performance evaluations.
Fred has 30+ years of experience in the background screening industry including loss prevention public record retrieval, corporate asset protection, and investigative interviewing.
We use twenty-four sets of actual infrared images to compare the performance of proposed metrics IDGB and SDLB with the traditional metrics, and each set is consisted of 3 to 5 images which have different backgrounds but the same target.