Word:

DD

Noun1.DD - a doctor's degree in religion
1.(storage)DD - double density.
2.DD - Data Dictionary.
3.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".
Double Density [disks] (FDD)Doctor of Divinity, doctor's degree, doctorate
Browse
DCM
DCME
DCNA
DCO
DCOM
DCOP
DCP
DCPS
DCR
DCRC
DCS
DCS/DFS
DCSDFS
DCT
DCTN
DCU
-- DD --
DDA
DDB
DDBAC
DDBMS
DDC
DDC2B
DDCD
DDCD-R
DDCD-RW
DDCDR
DDCDRW
DDCMP
DDCS/2
DDCS2
DDD
DDE
Definitions Index: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

About this site and copyright information - Online Dictionary Home - Privacy Policy