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Glossary 3
cold boot
Process of starting up the computer by turning on the power. If power is already on, the
process means to turn off the computer and turn it on again. A cold boot reinitializes all
devices.
crt
Cathode-Ray Tube. A type of display screen used in desktop monitors. It forms the
screen image using tiny dots called, pixels. See also LCD.
cursor
A movable image on the display screen that indicates where the next entered data
appears.
D
default
A value, option, or setting that the computer automatically selects until you direct it
otherwise.
digital audio
Recorded sounds such as speech and sound effects. These are played back by the audio
circuit’s Digital-to-Analog Converter (DAC).
digital sound
A description of a sound wave that consists of binary numbers.
digitizing
The process of converting an analog signal into a digital representation.
diskette
A thin flexible platter coated with a magnetic material for storing information.
diskette drive
A magnetic drive that writes on and retrieves data from a diskette.
DSTN
Dualscan Super-Twisted Nematic. A type of technology used in some NEC Versa LCD
screen displays.
DVD
A denser, faster CD that can hold video as well as audio and computer data. Short for
digital versatile disk or digital video disk, this new type of CD-ROM holds a minimum
of 4.7-GB (gigabytes), enough for a full-length movie.