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MIS 6-9 > 6-9 > Flashcards

6-9 Flashcards

1
Q

Data communication

A

The electronic transfer of data from one location to another

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2
Q

Bandwidth

A

The amount of data that can be transferred from one point to another in a certain time period, usually one second

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3
Q

Attenuation

A

The loss of power in a signal as it travels from the sending device to the receiving device

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4
Q

Broadband

A

Data transmission, multiple pieces of data are send simultaneously to increase the transmission rate

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5
Q

Narrowband

A

A voice grade transmission channel capable of transmitting a maximum of 56,000 bps, so only limited amount of information can be transferred in a specific period of time

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6
Q

Protocols

A

Rules that govern data communications, including error detection, message length, and transmission speed

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7
Q

Modem

A

Short for modulator demodulator is a device that connect as used to the internet

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8
Q

Digital subscriber line (DSL)

A

Common carrier service is a high speed service that used ordinary phone lines

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9
Q

Communication media

A

Channels, connect sender and receiver devices. They can be conducted of radiated

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10
Q

Conducted media

A

Provide a physical path along which signals are transmitted, including twisted pair copper cable, coaxial cable, and fiber optics

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11
Q

Radiated media

A

Uses an antenna for transmitting data through air or water

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12
Q

Centralized processing

A

All processing is done on one central computer

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13
Q

Decentralized processing

A

Each user, department, or division has its own computer (sometimes called an organizational unit) for performing tasks

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14
Q

Distributed processing

A

Maintains centralized control and decentralized operations. Processing power is distributed among several locations

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15
Q

Open systems interconnection

A

A seven layer architecture for defining how data is transmitted from computer to computer in a networks, from the physical connection to the network to the applications that users run. It also standardizes interactions between network computers exchanging information

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16
Q

Network interface card

A

A hardware component that enables computers to communicate over a network

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17
Q

Local area network (LAN)

A

Connects workstations and peripheral devices that are in close proximity

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18
Q

Wide area network (WAN)

A

Can spend several cities, states, or even countries and it is usually owned by several different parties

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19
Q

Metropolitan area network (MAN)

A

Designed to handle data communication for multiple organizations in a city and sometimes nearby cities

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20
Q

Network topology

A

represents a networks physical layout including the arrangement of computers and cables

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21
Q

Star topology

A

Usually consists of a central computer (host computer, often a server) and series of nodes (typical, workstations or peripheral devices)

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22
Q

Ring topology

A

No host computer is required because each computer manages its own connectivity

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23
Q

Bus topology

A

(Also called linear bus) connects nodes along a network segment but the ends of the cable are not connected as they are in ring topology

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24
Q

Hierarchical topology

A

Also called tree, combines computer with different processing strengths in different organizational levels

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25
Q

Controller

A

A hardware and software device that control data transfer from a computer to a peripheral device

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26
Q

Multiplexer

A

A hardware device that allows several nodes to share in communication channel

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27
Q

Mesh topology

A

(Pled or interconnected) every nodes is connected to other nodes

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28
Q

Transmission Control Protocol/internet (TCP/IP)

A

An industry standard suite of communication protocols that enables interoperability

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29
Q

Packet

A

A collection of binary digits including message data and control characters from formatting and transmitting sent from computer to computer over a networks

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30
Q

Routing

A

The process of deciding which path to take in a network this is determined by the type of network and the software used to transmit data

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31
Q

Routing table

A

Generated automatically by software is used to determine the best possible route for a packet

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32
Q

Centralizing routing

A

One node is in charge of selecting the path for all packets. This node considered the network routing manager stores the routing table and any changes to a route must be made at this node

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33
Q

Distributed routing

A

Relies on each node to calculate its own best possible route. Each node contains its own routing table with current information on the status of adjacent nodes so packers can follow the best possible route

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34
Q

Router

A

A network connection device containing software that connects network systems and controls traffic flow between them

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35
Q

Static router

A

Requires the network routing manager to give it information about which addresses are in which network

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36
Q

Dynamic router

A

Can build tables that identify addresses on each network

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37
Q

Client/Server model

A

Software runs on the local computer (the client) and communicates with the remote server to request information or services. A server is a remote computer on the network that provides information or series’s in response to client requests

38
Q

Two-tier architecture

A

The most common, a client (tier one) communicates directly with the server

39
Q

N-tier architecture

A

Attempts to balance the workload between client and server by removing application processing from both the client and server and placing it on a middle tier server

40
Q

Wireless network

A

A network that uses wireless instead of wired technology

41
Q

Mobile network

A

Cellular network, a network operating on a radio frequency consisted of radio cells each server by a fixed transmitter

42
Q

Throughout

A

Similar to bandwidth it is the amount of data transferred or processed in a specified time

43
Q

Time division multiple access (TDMA)

A

Divides each channel into six time slots. Each user is allocated two slots: one for transmission and one for reception

44
Q

Code Division Multiple Access (CDMA)

A

Transmits multiple encoded messages over a wide frequency and then decides them st the receiving end

45
Q

Convergence

A

Refers to the integrating voice and data video and data so that multimedia information can be used for decision making

46
Q

Internet

A

Worldwide collection of millions of computers and networks of all sizes. A network of networks

47
Q

Advanced research projects agency network (ARPANET)

A

A project stated in 1969 by the US department of defense was the beginning of the Internet

48
Q

Internet backbone

A

A foundation network linked with fiber optic cables that can support very high bandwidth. It is made up of many interconnected government, academic, commercial, and other high capacity data routes

49
Q

Hypermedia

A

Documents include embedded references to audio text images video and other documents

50
Q

Hypertext

A

The embedded messages in hypermedia that connects to links

51
Q

Domain name system (DNS)

A

When information is transferred from one network to another it is converted using this system

52
Q

Uniform resource locators (URL)

A

Called universal resource locators identify a webpage

53
Q

Hypertext Markup Language (HTML)

A

The language used to create webpages it defines a pages layout and appearances by using tags and attributes

54
Q

Navigational tools

A

Used to travel from website to website

55
Q

Search engine

A

Such as google or Ask is an information systems that enables users to retrieve data from the web

56
Q

Directories

A

Indexes of information based on keywords embedded in documents which make it possible for search engines to find what you are looking for

57
Q

Discussion groups

A

Usually for exchanging opinion and ideas on a specific tops

58
Q

Newsgroups

A

Typically more general in nature and can Cover any topic

59
Q

Internet relay (IRC)

A

Enables users in chat rooms to exchange text messages with people in other locations in real time

60
Q

Internet telephony

A

Using internet rather than the telephone to communicate

61
Q

Voice over internet protocol (VoIP)

A

Protocol to use internet telephony

62
Q

Intranet

A

A network within an organization that uses internet protocols and technologies for collecting storing and disseminating useful information that supports business activities such as sales customer service

63
Q

Extranet

A

Secure network that uses the internet and web tech to connect intranets of business partners SO communications between organizations or between consumers

64
Q

Web 2.0

A

Refers to the trend toward web applications THAG are more

Interactive than traditional web applications

65
Q

Blog

A

A journal or newsletter that is updated frequently and intended for the public

66
Q

Wiki

A

Type of website that allows users to add, delete and sometimes modify content

67
Q

Social networking

A

Broad class of websites and service that allows users to connect with others

68
Q

RSS Feeds

A

Fast easy way to distribute web content in extensible markup language (XML) format. It is a subscription service and new context from websites you have selected is delivered via a feed reader to one spot

69
Q

Value chain

A

A series of activities designed to meet business needs by adding value in each phase of the ecommerce process

70
Q

Click a brick ecommerce

A

Mixes traditional commerce and e commerce it capitalized on the advantages of online interaction with customer YET retains the benefits of habjng a physical store

71
Q

Merchant model

A

Transfers the old retail model to the ecommerce world by using the medium of the internet

72
Q

Brokerage model

A

Brings sellers and buyers together on the web and collects commission on transactions between these parties

73
Q

Advertising model

A

Extension of transitional advertising media

74
Q

Mixed model

A

Generating revenue from more than one source

75
Q

Infomediary model

A

Ecommerce sites collect information on consumers and business and then sell this information to other companies for marketing purposes

76
Q

Subscription model

A

Sites sell digitial products or services to consumers

77
Q

Business to consumer

A

Selling directly to consumer

78
Q

Business to business

A

Electronic transactions between business

79
Q

Organizational ecommerce (intrabusiness)

A

Involves ecommerce activities that take place inside an organization typically via the organizations intranet exachange of goods

80
Q

Seller side market place

A

Sellers who cater to specialized markets such as chemicals electronics and come together to create a common market place for buyers

81
Q

Eprocurement

A

Enables employees in an organization to order and receive supplies and services directly from suppliers

82
Q

Buyer side marketplace

A

A buyer or group of buyers opens and electron marketplace and invited sellers to bid on announced products or make a request for quotation

83
Q

Third party exchange marketplace

A

Not controlled by sellers or buys instead is controlled by a third party and the marketing place generates revenue from the fees charges for matching buyers and sellers

84
Q

Vertical market

A

Ckncentrates on a specific industry or market

85
Q

Horizontal market

A

Concentrates on a specific function or business process and automates this function for different industries

86
Q

Global information system (GIS)

A

Information system THAG works across national borders, facilitates communication between headquarters and subsidiaries in other countries, and incorporates all the THE tech and applications found j atypekcal information system

87
Q

Trans order data flow

A

Restricts what type of data can be captured and transmitted to other countries

88
Q

Multinational structure

A

Production sales and marketing are decentralized and financial management remains the parents responsibility

89
Q

Global structure

A

Uses high centralized information systems. Subsidiaries have little autonomy and rely on headquarters for all process and control decisions as well as system design and implementation

90
Q

International structure

A

Operates much like multinational corp but subsidiaries depend on headquarters more for process and production decisions

91
Q

Transnational structure

A

The parent and all subsidiaries work tougher in designing policies procedures and logistics for delivering products and services to he RIGHT market

MIS 6-9 (1 decks)

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