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37 terms

MIS Quiz 2

STUDY
PLAY
telecommunications
the electronic transmission of signals for communications
telecommunications medium
anything that carries an electronic signal and interfaces between a sending device and a receiving device.
modum
modulation and demodulation
bandwidth
capacity of networks and telecommunications; has to do with speed
broadband
high capacity needed for video and audio
guided media
(conducted)
-use conductor to move signal
-things can touch such as a coaxable cable
-signal travels along a known confined path
hubs
a place of convergence where data arrives
wireless technologies
bluetooth, RFID, wifi, Wimax ( can cover over 3,000 miles)
centralized
all data maintained in one location (risky)
decentralized
each server is independent
distribution
applications are split between servers
Terminal-to-host
application and database reside on one computer, and use "dumb" terminal
file server
one host computer
client/ server architectures
multiple computer platforms are dedicated to special functions
Local Area Network (LAN)
covers a small area like between small buildings; 10-100 billion Mbps
Metropolitan Area Network (MAN)
connects LAN's; 30 or more miles; 100-1000 Mbps
Wide Area Network (WAN)
connects MAN and LAN and are usually leased
-span hundred of thousand of miles
Backbone Network
High speed backbone of all networks- 100 meters to many miles
A
the only one that is not backward compatable
- less interference
- increased wireless network
Switches
a telecom. device that routes incoming data from any one of the many inputs
Routers
software in a computer that determines the next network point
gateways
network point that acts as an entrance
HTML
hyperlink Markup Language
Content streaming
method for transferring multimedia files over the internet
e- commerce
is means to manage business communications
EDI
electronic data interchange: and intracompany, application to to application communication of data
M- commerce
) relies on the use of wireless devices, such as personal digital assistants, cell phones, and smart phones, to place orders and conduct business
Wireless Application Protocol( WAP)
A standard set of specifications for Internet applications that run on handheld, wireless devices.
electronic exchange
an electronic forum where manufacturers, suppliers, and competitors buy and sell goods
Transaction Processing systems (TPS)
the basic series of computer programs used by most businesses. These systems provide the basic data to carry out business
Process the detailed data necessary to update records about the fundamental business operations
Include order entry, inventory control, payroll, accounts payable, accounts receivable, and the general ledger.
Batch Processing system
method of computerized processing in which business transactions are accumulated over a period of time and prepared for processing as a single unit or batch
OLTP
computerized processing in which each transaction is processed immediately, without the delay of accumulating transactions into a batch
TPS activities
Data collection: process of capturing and gathering all data necessary to complete transactions
Data editing: process of checking data for validity and completeness
Data correction: process of reentering miskeyed or misscanned data that was found during data editing
Data manipulation: process of performing calculations and other data transformations related to business transactions
Data Storage: process of updating one or more databases with new transactions
Document production and reports: process of generating profit records and reports
Business continuity planning
identification of the business processes that must be restored first in a disaster event
international issues
- different language and culture
- disparities in IS infrastructure
- varying laws and custom rules
ERP
) systems are used in large, midsized, and small companies
Real-time monitoring of business functions
Timely analysis of key issues, such as quality, availability, customer satisfaction, performance, and profitability
ERP Disadvantages
Expense and time in implementation
Difficulty implementing change
Difficulty integrating with other systems
Risks in using one vendor
Risk of implementation failure