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Qu'est-ce (qui) est black boxes - définition

ELECTRONIC DEVICE USED IN PHREAKING TO PERFORM VARIOUS FUNCTIONS NORMALLY RESERVED FOR OPERATORS AND OTHER TELEPHONE COMPANY EMPLOYEES

Phreaking Boxes; Phreaking boxes

black box

SYSTEM WHERE ONLY THE INPUTS AND OUTPUTS CAN BE VIEWED, AND NOT ITS IMPLEMENTATION

Black-box; Black box theory; Black box (systems); Black boxes; Blackboxes; Black-boxes; Black box engineering

(black boxes)

1.

A black box is an electronic device in an aircraft which records information about its flights. Black boxes are often used to provide evidence about accidents.

N-COUNT

2.

You can refer to a system or device as a black box when you know that it produces a particular result but you have no understanding of how it works.

They were part of the black box associated with high-flyer management development.

N-COUNT: usu sing

black box

SYSTEM WHERE ONLY THE INPUTS AND OUTPUTS CAN BE VIEWED, AND NOT ITS IMPLEMENTATION

Black-box; Black box theory; Black box (systems); Black boxes; Blackboxes; Black-boxes; Black box engineering

<jargon> An abstraction of a device or system in which only its externally visible behaviour is considered and not its implementation or "inner workings". See also functional testing. (1997-07-03)

Black box

SYSTEM WHERE ONLY THE INPUTS AND OUTPUTS CAN BE VIEWED, AND NOT ITS IMPLEMENTATION

Black-box; Black box theory; Black box (systems); Black boxes; Blackboxes; Black-boxes; Black box engineering

In science, computing, and engineering, a black box is a system which can be viewed in terms of its inputs and outputs (or transfer characteristics), without any knowledge of its internal workings. Its implementation is "opaque" (black).

https://en.wikipedia.org/wiki/Black_box

Wikipédia

Phreaking box

A phreaking box is a device used by phone phreaks to perform various functions normally reserved for operators and other telephone company employees.

Most phreaking boxes are named after colors, due to folklore surrounding the earliest boxes which suggested that the first ones of each kind were housed in a box or casing of that color. However, very few physical specimens of phreaking boxes are actually the color for which they are named.

Most phreaking boxes are electronic devices which interface directly with a telephone line and manipulate the line or the greater system in some way through either by generating audible tones that invoke switching functions (for example, a blue box), or by manipulating the electrical characteristics of the line to disrupt normal line function (for example, a black box). However a few boxes can use mechanical or acoustic methods - for example, it is possible to use a pair of properly tuned whistles as a red box.

https://en.wikipedia.org/wiki/Phreaking box

Exemples du corpus de texte pour black boxes

1. Levasseur said the black boxes were in relatively good condition.

2. Ivan Sekretarev / AP Officials securing the black boxes.

3. Crash÷ Black boxes have been located Investigators will examine the black boxes of ill–fated flight ZU 522 today, after an airline which carries thousands of Britons on budget trips to Cyprus suffered a devastating crash.

4. Investigators were searching for the flight data recorders commonly called black boxes.

5. The international team said analysing the black boxes would take 10 days.