online dictionaries of abbreviations

A C D E F G H I M N O P R S T U V W X
DC DN DO DS DT
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DCIM
(Digital Camera Images) The standard folder in the root directory of a digital camera. This follows the design rule for Camera File system (DCF) under a JEITA specification (number CP-3461) More…
DNS
(Domain Name System) A system that stores information associated with domain names in a distributed database on networks, such as the Internet. The domain name system associates many types More…
DoS
(Denial-of-Service) An attack on a computer system or network that causes a loss of service to users, typically the loss of network connectivity and services by consuming the bandwidth of More…
DSL
(Digital Subscriber Line) A family of technologies that provide digital data transmission over the wires used in the "last mile" of a local telephone network. Typically, the download speed More…
DSLAM
(Digital Subscriber Line Access Multiplexer) A network device, usually located at a telephone company central office, or within a neighborhood cross-connect box as part of a digital loop More…
DTMF
(Dual-Tone MultiFrequency; Touch Tone, Tone Dialing) Used for telephone signaling over the line in the voice frequency band to the call switching center. DTMF is an example of a More…
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