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black box
(redirected from black boxes)

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.03 sec.

black box

A custom-made electronic device, such as a protocol converter or encryption system. Yesterday's black boxes often become today's off-the-shelf products. See Black Box Corporation.

The Black Box
A black box does not have to look like a box. It can be any contraption that is custom made for an application.


black box
1. a self-contained unit in an electronic or computer system whose circuitry need not be known to understand its function
2. an informal name for flight recorder

black box [′blak ‚bäks]
(engineering)
Any component, usually electronic and having known input and output, that can be readily inserted into or removed from a specific place in a larger system without knowledge of the component's detailed internal structure.

(jargon)black box - 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.


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