Expanded memory, Extended memory – Dell PowerEdge 6400 User Manual

Page 17

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EDO

Extended-data output. A type of RAM chip that holds data on the chip's output data lines for a longer period of time than fast-page mode RAM
chips. The EDO RAM chips are also faster than fast-page mode RAM chips.

EEPROM

electrically erasable programmable read-only memory

EGA

enhanced graphics adapter

EISA

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

Electromagnetic Compatibility

EMI

electromagnetic interference

EMM

Expanded memory manager. A software utility that uses extended memory to emulate expanded memory on computers with an Intel386™ or 
higher microprocessor. See also

conventional memory

,

expanded memory

,

extended memory

,

memory manager

, and

XMM

.

EMS

Expanded Memory Specification. See also

expanded memory

,

memory manager

, and

XMS

.

EPROM

erasable programmable read-only memory

ESD

Electrostatic discharge. See "

Safety Instructions

" for a complete discussion of ESD.

ESDI

enhanced small-device interface

expanded memory

A technique for accessing RAM above 1 MB. To enable expanded memory on your computer, you must use an EMM. You should configure your 
system to support expanded memory only if you run application programs that can use (or require) expanded memory. See also

conventional

memory

,

EMM

,

extended memory

, and

memory manager

.

expansion bus

Your computer contains an expansion bus that allows the microprocessor to communicate with controllers for peripheral devices, such as a
network card or an internal modem.

expansion-card connector

A connector on the computer's system board for plugging in an expansion card.

extended memory

RAM above 1 MB. Most software that can use it, such as the Windows operating system, requires that extended memory be under the control of an
XMM. See also

conventional memory

,

expanded memory

,

memory manager

, and

XMM

.

external cache memory

A RAM cache using SRAM chips. Because SRAM chips operate at several times the speed of DRAM chips, the microprocessor can retrieve data
and instructions faster from external cache memory than from RAM.

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