Operating instructions

daisy-chaining A method of connecting together several devices along a bus
and managing the signals for each device.
DAT (digital audio tape) Higher storage capacity tape recording system that
uses digital recording methods. Used for digital audio and video as well as data
backups.
data structure A term that is used interchangeably with the term “file sys
-
tem.” See also file system.
DB connectors D-shaped connectors used for a variety of connections in
the PC and networking world. Can be male (with prongs) or female (with
holes) and have a varying number of pins or sockets. Also called D-sub or
D-subminiature connectors.
DB-15 connector A two- or three-row DB connector (female) used for
10Base5 networks, MIDI/joysticks, and analog video.
DB-25 connector DB connector (female), commonly referred to as a parallel
port connector.
DC (direct current) A type of electricity in which the flow of electrons is in a
complete circle in one direction.
DDR SDRAM (double data rate SDRAM) A type of DRAM that makes two
processes for every clock cycle. See also DRAM.
DDR2 SDRAM A type of SDRAM that sends four bits of data in every clock
cycle. See also DDR SDRAM (double data rate SDRAM).
debug To detect, trace, and eliminate errors in computer programs.
decoder A tool used to decode data that has been encoded; for instance,
a DVD decoder breaks down the code used to encrypt the data on a piece of
DVD Video media.
dedicated circuit Circuit that runs from a breaker box to specific outlets.
dedicated server A machine that is not used for any client functions, only
server functions.
GLOSSARY 19
Passport / Mike Meyers‘ A+ Certification Passport / Meyers / 226308-3 / Glossary
P:\010Comp\Passport\308-3\gloss.vp
Monday, April 09, 2007 10:24:42 PM
Color profile: Generic CMYK printer profile
Composite Default screen