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81Anti-ballistic missile — An anti ballistic missile (ABM) is a missile designed to counter ballistic missiles (a missile for missile defense). A ballistic missile is used to deliver nuclear, chemical, biological or conventional warheads in a ballistic flight trajectory.… …
82Cipher — For other uses, see Cipher (disambiguation). Edward Larsson s rune cipher resembling that found on the Kensington Runestone. Also includes runically unrelated blackletter writing style and pigpen cipher. In cryptography, a cipher (or cypher) is… …
83Card game — A card game is any game using playing cards, either traditional or game specific. Countless card games exist, including families of related games (such as poker). Some games have formally standardized rules, while rules for others can vary by… …
84Coalition government — Part of the Politics series Politics List of political topics Politics by country …
85Computer security — This article is about computer security through design and engineering. For computer security exploits and defenses, see computer insecurity. Computer security Secure operating systems Security architecture Security by design Secure coding …
86Data Encryption Standard — The Feistel function (F function) of DES General Designers IBM First publis …
87Digital — For other uses, see Digital (disambiguation). A digital system[1] is a data technology that uses discrete (discontinuous) values. By contrast, non digital (or analog) systems use a continuous range of values to represent information. Although… …
88Door — For other uses, see Door (disambiguation). A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space. When open, they admit ventilation… …
89Deconstruction — For the approach to post modern architecture, see Deconstructivism; for other uses, see Deconstruction (disambiguation). Deconstruction is a term introduced by French philosopher Jacques Derrida in his 1967 book Of Grammatology. Although he… …
90Decca Navigator System — D …
