Users Guide

136 Glossary
charge indefinitely, your system continually refreshes
each DRAM chip in the system.
drive-type number
Your system 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
system's System Setup program must match the actual
drive(s) installed in the system. 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 microprocessor.
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 and tape 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 system 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.
EMM
Abbreviation for expanded memory manager. A utility
that uses extended memory to emulate expanded
memory on systems with an Intel386™ or higher
microprocessor.
EMS
Abbreviation for Expanded Memory Specification.
EPP
Abbreviation for Enhanced Parallel Port which
provides improved bidirectional data transmission.
Many devices are designed to take advantage of the
EPP standard, especially devices, such as network or
SCSI adapters that connect to the parallel port of a
portable computer.