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8 definitions found
From WordNet (r) 2.0 [wn]:
DD
noun: a doctor's degree in religion [syn: {Doctor of Divinity}]
From Jargon File (4.3.1, 29 Jun 2001) [jargon]:
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'.
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
DD
1. {double density}.
2. {Data Dictionary}.
[{Jargon File}]
(1998-08-28)
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
dd
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" 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" has been {deprecated} for
a long time (though it has no exact replacement). The term
has been displaced by {BLT} or simple English "copy".
[{Jargon File}]
(1995-02-03)
From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:
DD
Dansk Dataforening (org., Denmark)
From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:
DD
Data Dictionary (SA, CASE, DB)
From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:
DD
Depacketization Delay
From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:
DD
Double Density [disks] (FDD)
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