S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

subsystem .

 

In computers,

a

secondary

or

subordinate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

system, usually capable of operating independently of

SCSI .

Small

computer

 

system

interface.

 

 

 

 

controlling

 

system,

and

usually

having

a

 

single

 

purpose,

 

 

 

 

 

such

 

 

as

 

displaying

video

 

or

reading

from

and

writing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

segment

.

 

A

 

section

 

of

cable

between

 

 

 

 

hard

 

disks. A

subsystem

can

be

integrated

 

into

the

 

 

 

 

components

 

or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

system board or on an adapter.

 

 

 

 

 

 

 

 

 

devices. A segment may consist of a single patch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cable, several

patch

cables

that

are

 

connected,

 

 

or

 

a

video

 

graphics

array.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SVGA .

 

 

 

Super

 

 

 

 

 

 

 

 

 

combination of building cable and patch cables that are

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

symmetric

 

 

multiprocessing

 

 

.

 

In

personal-computer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

serial

port

.

 

An

access

point

 

through

which

a

 

systems,

 

 

a

multiprocessing

 

design

that

enables

two

or

 

 

 

computer

 

 

 

 

 

 

 

 

to

run

concurrently

and

 

work

 

 

transmits

or

 

receives

data,

one bit

at

a

 

more

 

microprocessors

 

 

 

 

 

 

time. Contrast

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

with

 

parallel

port.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

independently, with each microprocessor capable of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

performing

 

any

task.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

server .

(1) A

functional

unit

that

provides

shared

board

 

 

.

In

a

 

system

unit,

the

main

circuit boa

services

to

workstations

over

a

network.

 

 

 

system

 

 

 

 

(2) In

a

 

supports

a

variety

 

of

basic

system

devices,

s

network,

a

 

data

station

that

provides

 

 

 

 

that

 

 

 

 

facilities

 

 

to

 

 

other

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

stations.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a

 

keyboard or a mouse, and provides other basic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

system

 

 

functions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIMM .

 

Single-inline

memory

module.

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

slot . (1) A position in a device used for removable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

storage

media.

(2) One

of

 

several

receptacles

in

 

 

the

 

a

local

area

 

network,

the

 

symbol

 

of

autho

rear

panel

 

of

the

 

system

 

unit

into

which

a

token .

 

 

 

In

 

 

 

 

 

 

 

 

user

 

 

can

 

 

 

 

 

from

 

one

data

station

to

another

install

an

adapter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

passed

 

 

successively

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

indicate the station temporarily in control of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

small computer system interface (SCSI)

 

 

 

 

 

 

 

 

 

 

transmission

 

medium. Each

data

station

has an

 

 

 

 

 

 

.

A

standard opportunity

 

to

acquire

and

use

the

token

to

control

input/output

interface

used

 

by

personal

computers.

 

 

 

 

 

token is a particular message

or

 

bit

patte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

medium. A

 

 

SMP .

symmetric

multiprocessing.

 

 

 

 

 

 

 

that

 

signifies permission to transmit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

socket .

A

receptacle

for

 

a

microchip.

 

 

 

 

transceiver

 

 

 

.

 

A

physical

device

that

connects

a

host

 

 

 

 

 

interface to a local area network, such as Ethernet.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

software

.

 

(1) All

 

or

 

part

of the

programs,

 

Ethernet

 

 

transceivers

contain

electronics

that

apply

 

 

 

 

procedures,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

signals to the cable and sense collisions.

 

 

 

 

 

rules, and associated documentation of a computer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software

is

 

an

intellectual

 

creation

that

is independent

Protocol

(TCP)

 

 

.

A

 

 

 

 

 

 

 

 

 

of

the

medium

on

 

which

it

is

recorded.

 

 

Transmission

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

(2) Contrast

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

with

 

hardware.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communications protocol used in Internet and in any

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

network that follows the U.S. Department of Defense

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

startup

sequence

 

 

.

 

 

In

 

personal

computers,

 

the

 

standards

 

 

for

inter-network

protocol. TCP

 

provides

a

 

 

 

 

 

 

 

 

order

 

 

 

 

 

host-to-host protocol

between

hosts

 

in

 

 

that

 

the

computer

uses

to

search the

 

 

 

 

reliable

 

 

 

 

 

 

direct

 

access

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

storage

devices

 

for

an

operating

system.

 

packet-switched communications networks and in

 

 

 

 

 

 

 

interconnected systems of such networks. It

assumes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

storage

.

A

 

functional

unit

into

which

data

 

that

 

 

the

 

 

Internet

protocol

is the

underlying

protocol

 

can

 

be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

placed,

in

which

 

it

can

be

retained,

 

and

 

from

 

which

 

it

Protocol/Internet

Protocol

 

 

 

 

 

 

 

 

 

 

can

be

retrieved.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmission

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(TCP/IP) . A set of protocols that allow cooperating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

straight-through

cable

 

 

.

 

A

type

of

10BASE-T

cable

computers to share resources across a heterogeneous

 

 

 

 

in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

which

the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

network.

 

 

 

 

 

so

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

transmit and receive data pairs are wired

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

that

 

each

 

signal

 

wire

is

 

terminated

at

 

the

 

same

 

pin

To send

information

from

one

place

for

 

 

position

at

each

 

end

of

the

cable. A

 

 

 

 

transmit .

 

 

 

 

 

 

straight-through

 

elsewhere.

(A)

 

 

 

 

 

 

 

 

 

 

 

 

 

cable

is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reception

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

used to connect the 10BASE-T port on an

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ethernet

controller

to

a

10BASE-T

port

on

 

a

repeater

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

that

 

performs

the

crossover

function.

 

 

 

 

twisted pair . A transmission medium that consists of

 

 

 

 

 

 

two insulated electrical conductors twisted together

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reduce noise.

(T)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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