In the 19th and 20th centuries, many machines and devices, large and small, were painted black, to stress their functionality. These included telephones, sewing machines, steamships, railroad locomotives, and automobiles. The Ford Model T, the first mass-produced car, was available only in black from 1914 to 1926. Of means of transportation, only airplanes were rarely ever painted black.
Olivetti telephone from the 1940s
A 1920 Ford Model T
The first model BlackBerry (2003)
Other articles related to "functionality":
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... Current functionality (as of January 2008) Web page tracking - Still has a high level of functionality for most page types ...
... patterns provide a way to categorize and expose a control's functionality independent of the control type or the appearance of the control ... Because each control pattern represents a separate functionality, they can be combined to describe the full set of functionality supported by a ...