User's Manual

218 Glossary
DPMS
Abbreviation for Display Power Management
Signaling. A standard developed by the Video
Electronics Standards Association (VESA
®
) that
defines the hardware signals sent by a video controller
to activate power management states in a 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
Refers to a remote management capability. See RAC .
DRAM
Acronym 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
drives. Each is assigned a drive-type number that is
stored in NVRAM. The hard 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 (logical cylinders, logical heads, cylinder
number, and logical sectors per pack) for drives not
included in the table of drive types stored in NVRAM.
DTE
Abbreviation for data terminal equipment. Any device,
such as a computer system, that can send data in digital
form by means of a cable or communications line. The
DTE is connected to the cable or communications line
through a data communications equipment (DCE)
device, such as a modem.
ECC
Abbreviation for error checking and correction.
ECP
Abbreviation for Extended Capabilities Port.
EDO
Acronym for extended data output dynamic random
access memory which is a type of DRAM that is faster
than conventional DRAM. EDO RAM can start
fetching the next block of memory at the same time
that it sends the previous block to the CPU.
EEPROM
Acronym for electrically erasable programmable
read-only memory.
EIDE
Abbreviation for enhanced integrated drive electronics.
EIDE devices add one or more of the following
enhancements to the traditional IDE standard:
• Data transfer rates of up to 16 MB/sec
• Support for drives other than just hard drives, such
as CD drives
• Support for hard drives with capacities greater than
528 MB
• Support for up to two controllers, each with up to
two devices attached
EISA
Acronym for Extended Industry-Standard
Architecture, a 32-bit expansion-bus design. The
expansion-card connectors in an EISA computer are
also compatible with 8- or 16-bit ISA expansion cards.
To avoid a configuration conflict when installing an
EISA expansion card, you must use the EISA
Configuration Utility. This utility allows you to specify
which expansion slot contains the card and obtains
information about the card's required system resources
from a corresponding EISA configuration file.
EMC
Abbreviation for Electromagnetic Compatibility.
EMI
Abbreviation for electromagnetic interference.