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39 Cards in this Set

  • Front
  • Back
IT and IS
information technology
information system

IS is more important than IT.
ENIAC
first computer; used for calculations for the atom bomb; the size of a room
3 computer
main frame
mid frame;hp sun ibm
and micocomputers
operating systems of 3 main computers
main frame; zios
midframe; unix, windows server
micro; windows
3 tier architecture
main frame-midframe- and WS(displaying and manipulating)
2 tier architecture
server-workstation
LAN
local area network; connect from up to 200 yard apart
WAN
wide area network; to connect countries via satellite and oceanic cables
ATM
asynchronous transmission mode; used on college campuses
MAN
metropolitan area network; (network cable line around manhattan)
ERP
enterprise resource planning
95% of companies implemented.
ie. SAP, peoplesoft, Boan, JD Edwards
BPR
business process reengineering
SDLC
software development life cycle.
1. feasibility stage (whether or not to do something)
2. requirements
3. buy or build
4. test
5. UAT: user acceptance testing
6.production implemented: done on routine basis.
IPO
input processing output
AIS
an application. the first one developed. a business asset. processes financial transactions
captures and records the financial effects of a firms transactions
distributes transaction information to operations personnel to coordinated many key tasks
MIS
management information systems; processes non financial transactions not normally processed by AIS.
system
a group of interrelated multiple components or subsystems that serve a common purpose
system decomposition
the process of dividing the system into smaller subsystem parts
data sources
financial transactions that enter the information system from internal and external sources
transforming data into information
collection
processing
management
information generation
the three transaction cycles
the expenditure cycle
the conversion cycle
the revenue cycle
manual system accounting records
journals and ledgers
audit trail
source documents-journal-general ledger-financial statements
master file
contains account data
transaction file
a temporary file containing transactions since the last update. new everyday
reference file
nonfinancial data ie. phone numbers
archive file
update backup files. weekly/monthly stored in a wharehouse.
cardinalities
represents the numerical mapping between entities. not always 1-1
system flowcharts
used to represent relationships between the key elements. depict the type of media being used.
legacy system
mainframe based apps
batch oriented
use flat files for data storage
hierarchical and network databases
single user enviorment that discourages information integration.
modern system
client server based
uses relational database tables
high degree of process integration and data sharing
batch processing
a group of similar transactions that are accumulated over time and then processed together. ie. adp payroll company
increases efficiency and control
real time systems
control events as they happen. process transactions individually. no time lag between economic event and the processing
sec squared
stock, supplier
employee, enviornment
customer
c-suite; management level people
four main areas of business ethics
equity
rights
honesty
excercise of corporate power
main computer ethics issues
privacy
security
ownership of property
ownership of assets
misuse of computer
unemployment and displacement
fraud
false representation
material fact
intent to deceive
misrepresentation caused injury or loss
factors that contribute to fraud
MOM
mode/motivation
oppourtunity
the means
debt, addicted to gambling, abuse
amount of risk;CARRE
custody
authorize movement of custody
record keeping
occasional reconciliation
error correction