IBM 5000 manual 177, American National Dictionary For Information, Terminology, Basic

Glossary

This glossary includes terms and definitions fromattenuationthe .

A

decrease

in

magnitude

of

current,

following

publications.

voltage,

or

power

of

a

signal

in

transmission

betwe

The American

National

Dictionary

for

Information

points.

Systems , ANSI X3.172-1990, copyright 1990 by theAWG

.

American

Wire

Gauge.

American

National

Standards Institute (ANSI). Copies

may be purchased from the American National

Standards Institute, 11 West 42 Street,

NewB

York,

NY

10036.

Definitions

are

identified

by

the

symbol

(A).

To

copy

information,

usually

to

diskette

o

back

up .

The ANSI/EIA Standard 440-A:Fiber Optic

tape,

for

safekeeping.

Terminology.

Copies

may

be

purchased

from

the

.

Pertaining

to

a

system,

device,

file,

or

Electronic

Industries

Association,

2001

backup

Pennsylvania

can

be

used in

the

event

of

a

malfunction

o

Avenue,

N.W.,

Washington

DC

20006.

Definitions

that

are

identified

by

the

symbol

(E).

data.

The Information

Technology

Vocabulary, developed

by BBS

.

Bulletin

board

system.

Subcommittee

1,

Joint

Technical

Committee

1,

of

the

Basic

Input/Output

System.

BIOS

.

International Organization for Standardization and the

International Electrotechnical Commission (ISO/IECBIOS

(Basic

Input/Output

System)

.

Code

that

JTC1/SC1). These definitions

are

identified

by

the

symbol

(I). Definitions

from

draft

controls basic hardware operations such as interact

international

with diskette drives, hard disk drives, and the k

standards, committee drafts, and working papers being

developed

by

ISO/IEC

JTC1/SC1

are

identified

by

the

1

when

used

in

t

symbol

(T),

indicating

that

final

agreement

bit .

Either of the digits 0 or

has

not yet

with

binary

digit. (T)

been

reached

among

the

participating

National

numeration

system. Synonymous

Bodies

of

SC1.

bridge

.

A functional unit that interconnects

two

loca

A

area networks that use the same logical

link

control

protocol

but

may

use

different

medium

access

cont

protocols.

adapter .

A

printed

circuit

board

that

modifies

the

(1) A

routine

or

storage

used

to

compensat

system

unit

to

allow

it

to

operate

in

a

buffer

.

particular

way.

for a difference in rate of flow of data, or

address .

(1) A

value

that

identifies

a

occurrence

of

events,

when

transferring

data

from

register

or

a

particular

part

of

storage.

The

value

is

device to another. (A) (2) A portion of storage us

represented

by

one

or

more

characters.

(2) The

location

in

hold

input or output data temporarily.

the

storage

of

a

computer

where

data

is

stored. (3) To

refer

to

a

specific

storage

location

by

specifying

bus

. One or more conductors used for transmitting

the

value that

identifies

the

location.

signals, data, or power. See also address bus and

bus.

application

.

The

use

to

which

an

information

byte . A string that consists of a number of bits,

processing

system

is

put;

for

example,

a

payroll

application, an airline reservation application,

8,

a

that are treated as a unit and represent a

network

application.

C

application

program

.

(1) A

program

that

is

to

specific

the solution of

an

application

problem. Synonymous

.

The

physical

medium

for

transmitting

signals;

with

application

software. (T)

(2) A

program

cable

written

for

conductors

and

optical

fibers.

or

by

a

user

includes

copper

that applies to the user's work,

such

as

a

program

that

does

inventory

control

or

payroll.

(3) A

A buffer storage that contains frequently

cache

.

program used to connect and communicate with accessed instructions

and

data;

it

is

used

to

re

stations

on

a

network,

enabling

users

to

perform

time.

application-oriented

activities.

access

architecture

.

See

computer architecture.

CD-ROM

.

Compact disc read only memory.

High-capacity

read-only

memory in the form of an

optically

read

compact

disc.

See

also

CD.



Copyright

IBM

Corp.

1998

177