[1] Defence Communication Agency - Teil des DoD

[2] Document Content Architecture - von IBM entwickeltes Standardtextformat

[3] Distributed Communication Architecture

[4] Digital Computer Association, gegr. 1972 (->"Lexikon der Text- und Datenkommunikation")

[5] Digital Command Assembly (->"IEEE Standard Dictionary")

[6] Decade Counting Assembly (->"IEEE Standard Dictionary")

[7] Distribution Control Assembly (->"NASA Acronym List")

[8] Washington-National, DC, USA -internationale Fughafen-Kennung