DD
     n : a doctor's degree in religion [syn: {Doctor of Divinity}]
Source: WordNet® 2.0

dd /dee-dee/ vt. [Unix: from IBM {JCL}] Equivalent to {cat} or {BLT}.
   Originally the name of a Unix copy command with special options suitable
   for block-oriented devices; it was often used in heavy-handed system
   maintenance, as in "Let's `dd' the root partition onto a tape, then use
   the boot PROM to load it back on to a new disk". The Unix `dd(1)' was
   designed with a weird, distinctly non-Unixy keyword option syntax
   reminiscent of IBM System/360 JCL (which had an elaborate DD `Dataset
   Definition' specification for I/O devices); though the command filled a
   need, the interface design was clearly a prank. The jargon usage is now
   very rare outside Unix sites and now nearly obsolete even there, as
   `dd(1)' has been {deprecated} for a long time (though it has no exact
   replacement). The term has been displaced by {BLT} or simple English
   `copy'.


Source: The Jargon File

DD
     Dansk Dataforening (org., Denmark)
     
     
Source: Virtual Entity of Relevant Acronyms

DD
     Data Dictionary (SA, CASE, DB)
     
     
Source: Virtual Entity of Relevant Acronyms

DD
     Depacketization Delay
     
     
Source: Virtual Entity of Relevant Acronyms

DD
     Double Density [disks] (FDD)
     
     
Source: Virtual Entity of Relevant Acronyms