Cis Chp. 5

Front 1

continuous waves that transmit information by altering the amplitude and frequency of the waves

Back 1

analog signal

Front 2

web site that offers a single point of entry to an entire community of affiliated interests

Back 2

affinity portal

Front 3

data transmission technology that uses packet switching and allows for almost unlimited bandwidth on demand

Back 3

asynchronous transfer mode (ATM)

Front 4

the main fiber-optic network that links the nodes of a network

Back 4

backbone network

Front 5

the range of frequencies available in a communications channel, stated in bits per second

Back 5

bandwidth

Front 6

communications channels that use electromagnetic media (the 'airwaves') to transmit data

Back 6

broadcase (wireless) media

Front 7

a communications processor that connects two networks of the same type

Back 7

bridge

Front 8

software applications through which users primarily access the web

Back 8

browsers

Front 9

communications channels that use physical wires or cables to transmit data and information

Back 9

cable (wireline) media

Front 10

a modem that operates over coaxial cable and offers high-speed acess to the internet or corporate intranets

Back 10

cable modem

Front 11

a virtual meeting place where groups of regulars come to "gab" electronically

Back 11

chat room

Front 12

computers, such as users' personal computers, that use any of the services provided by servers

Back 12

clients

Front 13

form of distributed processing in which some machines (servers) perform computingfunctions for end-user PCs

Back 13

client/server computing

Front 14

insulated copper wire; used to carry high-speed data traffic and television signals

Back 14

coaxial cable

Front 15

mutual efforts by two or more individuals who perform activities in order to accomplish certain tasks

Back 15

collaboration

Front 16

web sits that offers fairly routine content for diverse audiences; offers customization only at the user interface

Back 16

commercial (public) portal

Front 17

hardware devices that support data transmission and reception across a telecommunications system

Back 17

communications processors

Front 18

pathway for communicating data fron one location to another

Back 18

communications channel

Front 19

a system connection communications media, hardware, and software needed by two or more computer systems and/or devices

Back 19

computer network

Front 20

website that provides a signle point of access to critical business information located inside and outside of an organization

Back 20

corporate portal

Front 21

a private network that runs ont he internet but is open only to users who belong to it

Back 21

darknet

Front 22

a hierarchially organized collection of links to web pages, compiled manually; an example is Yahoo

Back 22

directory

Front 23

a discrete pulse, either on or off, that conveys information in binary form

Back 23

digital signal

Front 24

a high-speed, digital data-transmission technology using existing analog telephone lines

Back 24

digital subscriber line (DSL)

Front 25

learning situations in which teachers and students do not meet face-to-face

Back 25

distance learning (DL)

Front 26

network architecture that divides processing work between two or more computers, linked together in a network

Back 26

distributed processing

Front 27

the name assigned to an internet site, consisting of multiple parts, separated by dots, which are translated from right to left

Back 27

domain name

Front 28

the system administered by the internet corporation for assigned names that assigns names to each site on the internet

Back 28

domain name system (DNS)

Front 29

learning supported by the web; can be done inside traditional classrooms or in virtual classrooms

Back 29

e-learning

Front 30

interconnected multiple LANs and WANs

Back 30

enterprise network

Front 31

the most common network protocol

Back 31

ethernet

Front 32

a network that connects parts of the intranets or different organizations

Back 32

extranet

Front 33

thousands of very thin filaments of glass fibers, surrounded by cladding that transmit information via light pulses generated by lasers

Back 33

fiber-optic cable

Front 34

a repository of various software and data files for the network, which determines who gets access to what and in what sequence

Back 34

file server

Front 35

a small secondary computer, dedicated solely to communication, that manages all routing communications with peripheral devices

Back 35

front-end processor

Front 36

a communications processor that connects dissimilar netowrks by translating from one set of protocols to another

Back 36

gateway

Front 37

software products that support groups of people who collaborate on a common task or goal and that provide a way for groups to share resources

Back 37

groupware

Front 38

a text and graphical screen display that welcomes users and describes the organization that has extrablished the page

Back 38

home page

Front 39

the communications standard used to transfer pages across the WWW portionof th einternet; defines how messages are formulated and transmitted

Back 39

hypertext transport protocol (HTTP)

Front 40

a web-based gateway to information and knowledge for an entire industry

Back 40

industrywide portal

Front 41

a high-speed technology that allows users to transfer voice, video, image, and data simulataneously, over existing telephone lines

Back 41

integrated service digital network (ISDN)

Front 42

the massive network that connects computer networks of businesses, organizations, government agencies, and schools around the world, quickly, seamlesslyo, and inexpensively

Back 42

the internet

Front 43

a new, faster telecommunications network with limited access, devoted excusively to research purposes

Back 43

internet2

Front 44

terminals for public internet access

Back 44

internet kiosk

Front 45

the set of rules used to send and receive packets from one machine to another over the internet

Back 45

internet protocol (IP)

Front 46

companies that provide internet connections for a fee

Back 46

internet service providers (ISP)

Front 47

the use of the internet as the transmission medium for telephone calls

Back 47

internet telephony (voice-over IP or VoIP)

Front 48

a private network that uses internet software and TCP/IP protocols

Back 48

intranet

Front 49

an assigned address that uniquely identifies a computer on the internet

Back 49

IP address

Front 50

network that connects communications devices in a limited geographical region, so that every user device on the network can communicate with every other device

Back 50

local area network (LAN)

Front 51

a computer program that searches several engines at once and integrates the findings of the various search engines to answer queries posted by users

Back 51

metasearch engine

Front 52

website that is accessible from mobile devices

Back 52

mobile protocol

Front 53

device that converts signals from analog to digital and vice versa

Back 53

modem

Front 54

electronic device that allows a single commmunications channel to carry data transmissions simulatneously from many sources

Back 54

multiplexer

Front 55

computers that act as exchange points for internet traffic and determine how traffic is routed

Back 55

network access points (NAP)

Front 56

hardware that specifies the data transmission rate, the size of message units, the addressing information attached to each message, and netowork topology

Back 56

network interface card

Front 57

a multiagency, US federal government research and development program that is developing revolutionary applications that require advanced networking

Back 57

next-generation internet (NGI)

Front 58

computing devices that are connected to a network, including the internet

Back 58

nodes

Front 59

data transmission technology that breaks up blocks of text into small, fixed bundles of data (packets) that are sent independently through the network

Back 59

packet switching

Front 60

a type of client/server distributied processing that allows two or more computers to pool their resources, making each computer both a clietn and a server

Back 60

peer-to-peer processing

Front 61

a web-based personalized gateway to information and knowledge that provides information from disparate information systems and the internet, using advanced search and indexing techniques

Back 61

portal

Front 62

the set of rules and procedures governing transmission across a network

Back 62

protocol

Front 63

a communications processor that routes messages through several connected LANs or to a wide are network

Back 63

router

Front 64

a computer program that can contact other network resources on the internet, search for specific information by key words, and report the results; an example is google

Back 64

search engine

Front 65

a computer that provides access to various network services, such a printing, data, and communications

Back 65

server