IBM SY27-0345-06 manual Glossary

Glossary

This glossary includes terms and definitions from:baseband adapter addresses, X.25 addresses, and token-ring adapter addresses on a local area netwo

ŸThe IBM Dictionary of Computing(New York; McGraw-Hill, Inc., 1994).

American National Standards Institute (ANSI) . An

ŸThe American National Standard Dictionary fororganization consisting of producers, consumers, and

Information Systems, ANSI X3.172-1990,

copyrightgeneral interest

groups,

that

establishes

the

proc

1990 by the American National Standards

Institutebywhich

accredited

organizations

create

and

main

(ANSI). Copies may be purchased from

the voluntaryAmer-

industry

standards

in

the

United

States.

ican

National

Standards

Institute,

11

West

42nd

Street,

New

York,

New

York

10036.

analog .

(1) Pertaining

to

data

consisting of

contin-

Definitions

are

identified

by

the

symbol

(A)

after

the

uously

variable

physical

quantities. (A)

(2) Contrast

definition.

Ÿ The Information

Technology

Vocabulary, developed

withdigital.

by

Subcommittee

1,

Joint

Technical

Committee

1,

of

Standards

Institute

(ANSI)

.

An

the

International

Organization

for

American

National

Standardization

consisting

of

producers,

consumers,

and

and

the

International

Electrotechnical

organization

Commission

(ISO/IEC JTC1/SC1). Definitions

of

general interest groups, that establishes the proc

published

parts

accredited

organizations

create

and

main

of

this

vocabulary

are

identified

by

by which

the

symbol (I)

voluntary industry standards in the United States.

after the definition; definitions taken from draft inter-

national

standards,

committee

drafts,

and

working

.

The

routing

architecture

used

to

interc

AppleTalk

papers

being developed

by

ISO/IEC

JTC1/SC1

are

nect

Apple computers or workstations. AppleTalk

identified

by

the

symbol

(T)

after

the

definition,

indi-

groups nodes (hosts) into physical networks corre-

cating that

final

agreement

has

not

yet

been

sponding to local area network (LAN) segments or

reached

among

the

participating

National

Bodies

of

LANs and

it allows

the

logical

grouping

of

SC1.

bridged

(regardless

of

network boundaries) into

AppleTalk

ŸThe Network Working Group Request for Com- zones. See alsoz ne. ments: 1208.

ARP .

Address

Resolution

Protocol.

The

following

cross-references

are

used

in this

glos-

Standard

Code

for

Information

sary:

ASCII

(American

Interchange)

.

The

standard

code,

using

a

coded

ch

Contrast

with:

This

refers

to a

term

that

has

an

opposed

or

substantively

different

meaning.

acter set consisting of 7-bit coded characters (

including parity check), that is used

for

informati

Synonym

for:

This

indicates

that

the

term

change

among

data processing

systems,

data

commu-

has

the

same

meaning

as

a preferred

term,

which

is

nication systems, and associated equipment. The

defined

in

its

proper

place

in

the

glossary.

ASCII set consists of control characters and graph

Synonymous

with:

This

is

a

backward

characters.

(A)

reference

from

a defined term to all other terms

that

Note:

IBM

has

defined

an

extension

to

ASCII

code

have

the

same

meaning.

(characters

128–255).

See:

This

refers

the

reader

to

multiple-word

terms

that

(AUI) .

In a

local

area

have

the

same

last

word.

attachment

unit

interface

network, the

interface between the medium attachme

unit

and

the

data

terminal

equipment

within

a

data

See also: This refers the reader to terms that have a

related,

but not

synonymous,

meaning.

station.

(I)

(A)

AUI .

Attachment

unit

interface.

A

auto-baud

.

Automatic

baud

rate

detection.

A

proce

by which a receiving device determines the speed

ac .

Alternating

current.

level,and

stop

bits of incoming data by examining

t

active

first

character,

usually

a

preselected

sign-on char

.

(1) Operational.

(2) Pertaining

to

a

node

or

Auto-baud allows the receiving device to accept d

device

that

is

connected

or

is

available

for

connection

to

another

node

or

device.

from a variety of transmitting devices operating at

ferent speeds without needing to establish data r

Address

Resolution

Protocol

(ARP)

advance.

.

A

protocol

that

dynamically

maps

between

Internet

addresses,

 Copyright

IBM

Corp.

1994,

1998

X-1