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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
Controller
A hardware and software device that control data transfer from a computer to a peripheral device
26
Multiplexer
A hardware device that allows several nodes to share in communication channel
27
Mesh topology
(Pled or interconnected) every nodes is connected to other nodes
28
Transmission Control Protocol/internet (TCP/IP)
An industry standard suite of communication protocols that enables interoperability
29
Packet
A collection of binary digits including message data and control characters from formatting and transmitting sent from computer to computer over a networks
30
Routing
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
31
Routing table
Generated automatically by software is used to determine the best possible route for a packet
32
Centralizing routing
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
33
Distributed routing
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
34
Router
A network connection device containing software that connects network systems and controls traffic flow between them
35
Static router
Requires the network routing manager to give it information about which addresses are in which network
36
Dynamic router
Can build tables that identify addresses on each network
37
Client/Server model
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
Two-tier architecture
The most common, a client (tier one) communicates directly with the server
39
N-tier architecture
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
Wireless network
A network that uses wireless instead of wired technology
41
Mobile network
Cellular network, a network operating on a radio frequency consisted of radio cells each server by a fixed transmitter
42
Throughout
Similar to bandwidth it is the amount of data transferred or processed in a specified time
43
Time division multiple access (TDMA)
Divides each channel into six time slots. Each user is allocated two slots: one for transmission and one for reception
44
Code Division Multiple Access (CDMA)
Transmits multiple encoded messages over a wide frequency and then decides them st the receiving end
45
Convergence
Refers to the integrating voice and data video and data so that multimedia information can be used for decision making
46
Internet
Worldwide collection of millions of computers and networks of all sizes. A network of networks
47
Advanced research projects agency network (ARPANET)
A project stated in 1969 by the US department of defense was the beginning of the Internet
48
Internet backbone
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
Hypermedia
Documents include embedded references to audio text images video and other documents
50
Hypertext
The embedded messages in hypermedia that connects to links
51
Domain name system (DNS)
When information is transferred from one network to another it is converted using this system
52
Uniform resource locators (URL)
Called universal resource locators identify a webpage
53
Hypertext Markup Language (HTML)
The language used to create webpages it defines a pages layout and appearances by using tags and attributes
54
Navigational tools
Used to travel from website to website
55
Search engine
Such as google or Ask is an information systems that enables users to retrieve data from the web
56
Directories
Indexes of information based on keywords embedded in documents which make it possible for search engines to find what you are looking for
57
Discussion groups
Usually for exchanging opinion and ideas on a specific tops
58
Newsgroups
Typically more general in nature and can Cover any topic
59
Internet relay (IRC)
Enables users in chat rooms to exchange text messages with people in other locations in real time
60
Internet telephony
Using internet rather than the telephone to communicate
61
Voice over internet protocol (VoIP)
Protocol to use internet telephony
62
Intranet
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
Extranet
Secure network that uses the internet and web tech to connect intranets of business partners SO communications between organizations or between consumers
64
Web 2.0
Refers to the trend toward web applications THAG are more | Interactive than traditional web applications
65
Blog
A journal or newsletter that is updated frequently and intended for the public
66
Wiki
Type of website that allows users to add, delete and sometimes modify content
67
Social networking
Broad class of websites and service that allows users to connect with others
68
RSS Feeds
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
Value chain
A series of activities designed to meet business needs by adding value in each phase of the ecommerce process
70
Click a brick ecommerce
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
Merchant model
Transfers the old retail model to the ecommerce world by using the medium of the internet
72
Brokerage model
Brings sellers and buyers together on the web and collects commission on transactions between these parties
73
Advertising model
Extension of transitional advertising media
74
Mixed model
Generating revenue from more than one source
75
Infomediary model
Ecommerce sites collect information on consumers and business and then sell this information to other companies for marketing purposes
76
Subscription model
Sites sell digitial products or services to consumers
77
Business to consumer
Selling directly to consumer
78
Business to business
Electronic transactions between business
79
Organizational ecommerce (intrabusiness)
Involves ecommerce activities that take place inside an organization typically via the organizations intranet exachange of goods
80
Seller side market place
Sellers who cater to specialized markets such as chemicals electronics and come together to create a common market place for buyers
81
Eprocurement
Enables employees in an organization to order and receive supplies and services directly from suppliers
82
Buyer side marketplace
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
Third party exchange marketplace
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
Vertical market
Ckncentrates on a specific industry or market
85
Horizontal market
Concentrates on a specific function or business process and automates this function for different industries
86
Global information system (GIS)
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
Trans order data flow
Restricts what type of data can be captured and transmitted to other countries
88
Multinational structure
Production sales and marketing are decentralized and financial management remains the parents responsibility
89
Global structure
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
International structure
Operates much like multinational corp but subsidiaries depend on headquarters more for process and production decisions
91
Transnational structure
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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