Dell PowerEdge 4400 - Manual (Page 16)

Acronym for Deutsche Industrie Norm.
DIP
Acronym for 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 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.
diskette-based diagnostics
A comprehensive set of diagnostic tests for your Dell computer. To use the diskette-based diagnostics, you must boot your computer from the Dell
Diagnostics Diskette. Refer to your Installation and Troubleshooting Guide for a complete discussion about how to use the diskette-based
diagnostics.
display adapter
See video adapter .
DMA
Abbreviation for direct memory access. A DMA channel allows certain types of data transfer between RAM and a device to bypass the
microprocessor.
DOC
Abbreviation for Department of Communications (in Canada).
dpi
Abbreviation for dots per inch.
DPMS
Abbreviation for Display Power Management Signaling. A standard developed by the Video Electronics Standards Association that defines the
hardware signals sent by a video controller to activate power management states in a video display or monitor. A monitor is said to be DPMS-
compliant when it is designed to enter a power management state after receiving the appropriate signal from a computer's video controller.
DRAC
Acronym for Dell OpenManage™ Remote Assistant Card.
DRAM
Abbreviation for dynamic random-access memory. A computer's RAM is usually made up entirely of DRAM chips. Because DRAM chips cannot
store an electrical charge indefinitely, your computer continually refreshes each DRAM chip in the computer.
drive-type number
Your computer can recognize a number of specific hard-disk drives. Each is assigned a drive-type number that is stored in NVRAM. The hard-disk
drive(s) specified in your computer's System Setup program must match the actual drive(s) installed in the computer. The System Setup program
also allows you to specify physical parameters (cylinders, heads, write precomp, landing zone, and capacity) for drives not included in the table of
drive types stored in NVRAM.
DS/DD