Dell PowerEdge 7250 User Manual

Page 95

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Glossary

93

local bus

On a system with local-bus expansion capability,

certain peripheral devices (such as the video adapter

circuitry) can be designed to run much faster than they

would with a traditional expansion bus. Some local-bus

designs allow peripherals to run at the same speed and

with the same width data path as the system's

microprocessor.

LPT

n

The device names for the first through third parallel

printer ports on your system are LPT1, LPT2, and

LPT3.

LRA

Abbreviation for local response agent.

MB

Abbreviation for megabyte(s). The term megabyte

means 1,048,576 bytes; however, when referring to hard

drive storage, the term is often rounded to mean

1,000,000 bytes.

memory

A system can contain several different forms of

memory, such as RAM, ROM, and video memory.

Frequently, the word memory is used as a synonym for

RAM; for example, an unqualified statement such as

"a system with 16 MB of memory" refers to a system

with 16 MB of RAM.

memory address

A specific location, usually expressed as a hexadecimal

number, in the system's RAM.

memory manager

A utility that controls the implementation of memory

in addition to conventional memory, such as extended

or expanded memory.

memory module

A small circuit board containing DRAM chips that

connects to the system board.

MHz

Abbreviation for megahertz.

microprocessor

The primary computational chip inside the system that

controls the interpretation and execution of arithmetic

and logic functions. Software written for one

microprocessor must usually be revised to run on

another microprocessor. CPU is a synonym for

microprocessor.

modem

A device that allows your system to communicate with

other systems over telephone lines.

modular system

A system that can include multiple server modules.

Each server module functions as an individual system.

To function as a system, a server module is inserted

into a chassis which includes power supplies, fans, a

system management module, and at least one network

switch module. The power supplies, fans, system

management module, and network switch module are

shared resources of the server modules in the chassis.

See server module.

MS-DOS

Acronym for Microsoft Disk Operating System.

NIC

Acronym for network interface controller.

NTFS

Abbreviation for the Windows NT File System option

in the Windows NT operating system. NTFS is an

advanced file system designed for use specifically

within the Windows NT operating system. It supports

file system recovery, extremely large storage media, and

long file names. It also supports object-oriented

applications by treating all files as objects with user-

defined and system-defined attributes. See also FAT

and FAT32.

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