IBM 5000 manual

client .

A

functional

unit

that

receives

shareddeviceservices.A

mechanical,

electrical,

or

electronic

piece

from

a

server. (T)

equipment

designed to serve a special purpose or

clock .

perform

a

special

function.

A

device that generates periodic, accurately

spaced signals used for purposes such

as

timing,device driver

.

A

file

that

contains the

code

needed

regulation of the operations of a processor,useor an attached device.

generation

of

interrupts. (T)

diagnostic .

Pertaining to the detection and isolation

code .

A

collection

of

instructions

that

is inerrorsa formin

thatprograms

and faults

in

equipment.

can

be

read

and

processed

by

a

computer.

digital .

(1) Pertaining

to

data

in

the

form

of

digits

collision .

An unwanted condition that results from(2) Contrast with analog.

concurrent

transmissions

on

a

channel. (T)

DIMM

.

Dual

inline

memory

module.

compatibility

.

The

capability

of

a

hardware

or

software

component

to

conform

to

the

direct

access

storage

device

(DASD)

.

A

interface

nonvolatile-storage device, such as a diskette drive,

requirements of a given computer without adversely

affecting

its

functions.

hard

disk

drive, or CD-ROM drive, in which access ti

is

effectively

independent

of

the

location

of

the

configuration

.

The manner in which the

hardwarethe andstorage

medium.

software of an information processing system are

organized

and

interconnected. (T)

direct

memory

access

(DMA)

.

The transfer

of

data

between

memory

and

input/output

devices

without

configure

.

To

set

up

a

computer

for

operationmicroprocessorby

intervention.

describing

to

the

system

the

devices,

optional

features,

and

programs

installed

in

the

computer.

disk

array .

Two or more hard disks interconnected to

increase

security,

performance,

or

reliability.

connector

.

An

electrical part used to join two

or

more

other

electrical

parts. (Contrast

with

port.) diskette .

A

small

magnetic

disk

enclosed

in

a

jacket.

(T)

control .

The

determination

of

the

time

and

order

in

which

the

parts

of

a

computer

and

the

diskette

drive

.

The

mechanism

used

to

seek,

read,

devices

that

and

write data on diskettes. It can be installed in

contain those parts perform the input, processing,

storage,

and

output

functions.

attached

to,

a

computer.

controller .

A

device

that

coordinates

and

display .

A

component

capable

of

displaying

controls the

operation

of

one

or

more

input/output

information on a viewing surface; for example, a

devices,

such

as

cathode ray tube or a gas panel.

workstations, and synchronizes the operation of such

devices

with

the

operation

of

the

system

as

a

whole.

DMA

.

Direct

memory

access.

crossover

cable

.

A

type

of

10BASE-T

cable

in

which

the

transmit

and

receive

data

pairs

are

duplex

.

Pertaining

to

communication

in

which

data

can

wired

so

that

the

transmit

pair

is

terminated

at

the

pin

be sent and received at the same time. Synonymous

positions

used

by

the

receive

pair

at

the

opposite

end

of

with full-duplex (FDX).. Contrast with

half-duplex

the

cable. A

crossover

cable

is

used

to

connect

the

(HDX).

10BASE-T

port

on an Ethernet controller to a 10BASE-T port on a

repeater

that does

not

perform

the

crossover

function.

E

D

ECC . Error correcting code.

DASD

.

Direct

access

storage

device.

ECP .

Extended

Capability Port. An IEEE

1284

standard signalling method for high speed bidirectiona

data

. (1) A

re-interpretable

parallel

communication

between

a

computer

and

a

representation of

peripheral device, that uses the hardware in the p

information in a formalized manner suitable for

communication,

interpretation, or

processing.

assist in the data transfer. It can use direct me

Operations can

be performed

upon data by

addressing (DMA)

channels to

move

its data,

and

humans or

by

automatic

means. (T)

(2) Any

requires the peripheral device to control the

representations such

as

characters or analog quantities to which

handshaking. ECP is generally used for printers and

meaning

is

or

might

be

assigned. (A)

scanners. See also

EPP.

178

Netfinity

5000 Server

Hardware

Information and

Procedures