In science and engineering, a black box is a device, system or object which can be viewed solely in terms of its input, output and transfer characteristics without any knowledge of its internal workings, that is, its implementation is "opaque" (black). Almost anything might be referred to as a black box: a transistor, an algorithm, or the human mind.
The opposite of a black box is a system where the inner components or logic are available for inspection, which is sometimes known as a clear box, a glass box, or a white box.
Famous quotes containing the words black and/or box:
“The token woman carries a bouquet of hothouse celery
and a stenographer’s pad; she will take
the minutes, perk the coffee, smile
like a plastic daisy and put out
the black cat of her sensuous anger
to howl on the fence all night.”
—Marge Piercy (b. 1936)
“Nobody has ever before asked the nuclear family to live all by itself in a box the way we do. With no relatives, no support, we’ve put it in an impossible situation.”
—Margaret Mead (1901–1978)