IBM 5000 manual Lan, Local

network . (1) An arrangement of nodes and connecting branches. (T) (2) A configuration of data processing devices and software connected for information interchange.

Local area network.

J

MDI . Medium Dependent Interface.

MDI port . The port that acts as the electrical and jumper . A connector between two pins on a network

mechanical interface between the twisted-pair link

adapter that enables or disables an adapter option,

segment and the medium attachment unit.

feature, or parameter value.

L

LAN .

MDI-X	.	A	port	on a	10BASE-T	repeater	that performs
the	crossover			function.
medium	.	A	physical		material	in or on	which data may
be	represented.

LED .

Light-emitting

diode.

megabyte .

(1) For

processor

storage

and

real

and

virtual

20

2or

1 048 576

bytes. (2) For

disk

link

segment

.

In

simple

terms,

a

single

memory,

cable

or

capacity

and

transmission

rates,

1 000 000

interconnected

cables

that

connect

a

storage

device to

a

bytes.

10BASE-T repeater. The cables in a link segment are

unshielded twisted-pair

cables

that

conform

to

the

.

Addressable

storage

space

in

the

computer

cabling

specifications

in

IEEE

Standard 802.3

memory

that

is

used

for

temporary

storage

of

instructions

10BASE-T.

data while a program is running,

or

for

permanent

load .

To

bring all or part of

a

computer

storage

of

microcode. Contrast

with

auxiliary

storage.

program

into

memory

from

auxiliary

storage

so

that

the

computer

can

of

options

displayed

to

the

user

by

run

the

program.

menu

.

A

list

processing

system,

from

which

the

user

can

select a

local

area

network

(LAN) .

(1) A

computer

network

action to be initiated. (T)

located

on

a

user's

premises

within

a

limited

.

A

processor

whose

elements

have

geographical

area. Communication

within

a

local

microprocessor

area

miniaturized

into

one

or

a

few

integrated

circ

been

network is not subject to external regulations; however,

communication across the LAN boundary may be

(T)

subject

to

some

form

of

regulation. (T)

(2) A

network

in

.

(1) A

functional

which

a

set

of

devices

are

connected to

modem (modulator/demodulator)

one

another

for

communication

and

that

can

be

connected

to

unit

that

modulates and demodulates signals. One of

a

larger

of

a modem is to

enable

digital

data

network.

the

functions

transmitted

over

analog

transmission

facilities. (T)

(A)

logical .

(1) Pertaining

to

content

or

meaning

(2) A

device

that

converts

digital

data

from a

compu

as

an

analog

signal

that

can

be

transmitted

on

a

opposed

to

location

or

actual

to

implementation. (A)

and

converts

the

analog

signal

(2) Pertaining

to

a

view

or

description

telecommunication line,

of data

that

does

for

the

computer.

received

to

data

not depend on the characteristics of the computer

system or the physical storage. (A)

(3) Contrast

with

physical.

(A)

N

M

NDIS . Network Driver Interface Specification.

NetBIOS . Network BIOS. An operating system

math coprocessor . In personal-computer systems, a

interface for application programs used on IBM perso microprocessor that supplements the operations of the

computers that are attached to the IBM Token-Ring system microprocessor, enabling the computer to

Network. See also BIOS.

perform complex mathematical operations in parallel with other operations.

MAU . Medium attachment unit.

Mbps . Megabits per second.

Mbps . Million bits per second.

MBps . Megabytes per second.

node address . The address of an adapter on a LAN.

nonvolatile . (1) Pertaining to a storage device whose contents are not lost when power is cut off. (T)

(2) Contrast with volatile.

180 Netfinity 5000 Server Hardware Information and Procedures