Dell Precision 420 - Manual (Page 43)

cpi
characters per inch
CPU
central processing unit. See also microprocessor .
cursor
A marker, such as a block, an underscore, or a pointer, that represents the position at which the next keyboard or mouse action will occur.
D
DAT
digital audio tape
dB
decibel(s)
dBA
adjusted decibel(s)
DC
direct current
Dell Diagnostics
A comprehensive set of diagnostic tests for your Dell computer. To use the diagnostics, you must boot your computer from the Dell Diagnostics
Diskette. See your Diagnostics and Troubleshooting Guide for more information about using the Dell Diagnostics.
Dell Inspector
A DMI browser that allows you to view your computer system's current hardware configuration and operating system version. If your system
includes Dell-installed software, you can select this program from the Dell Accessories program folder.
device driver
A program that allows the operating system or some other program to interface correctly with a peripheral device, such as a printer. Most device
drivers are installed when the operating system is installed.
DIMM
dual in-line memory module
DIN
Deutsche Industrie Norm
DIP
dual in-line package. A circuit board, such as a system board or expansion card, may contain DIP switches for configuring the circuit board. DIP
switches are always toggle switches, with an ON position and an OFF position.
directory
Directories help keep related files organized on a disk in a hierarchical, "inverted tree" structure. Each disk has a "root" directory; for example, a
C:\>
prompt normally indicates that you are at the root directory of hard-disk drive C. Additional directories that branch off of the root directory are
called subdirectories. Subdirectories may contain additional directories branching off of them.
display adapter
See video adapter .
DMA
direct memory access. A DMA channel allows certain types of data transfer between RAM and a device to bypass the microprocessor.
DMI