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ACCT 2258 EXAM 4
mizzou accounting
143
Accounting
Undergraduate 3
12/12/2012

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Term
e commerce
Definition
allows computers to communicate and negotiate with customers through electronic funds transfers and electronic data interchange
Term
disintermediation
Definition
the removalof supply chain intermediaries
Term
ergonomics (human factors)
Definition
scientific application of information about humans to the dessign of objects, systems and environments that humans interact with (makes computers more comfortable through keyboards, mouses etc)
Term
assistive technology products include
Definition
public access, text to speech, dragon naturally speeking
Term
public access
Definition
an assistive technology product that ensures public with disabilities have access to public accomidations
Term
text to speech
Definition
an assistive technology product that is software that aids in reading documents through typed word to sound
Term
dragon naturally speeking
Definition
an asistive technology product that is a speech recognition program that allows the computer to use spoken commands
Term
social concerns with computer use include
Definition
-child protection (protecting and preventing inappropriate material)
-computer addiction
-pornography (wide spread and addictive, said to be first use of e commerce)
-dangerous information (banned books, political discussions, how to etc)
Term
green computing
Definition
the study and practice of using computing resources efficiently with a world wide perspective (buying green, save trees, recycle etc)
Term
"computer as the target" crime
Definition
crimes in which theft of intellectual property, marketing information, computerized files, and other info
Term
"computer as the instrument of the crime" crime
Definition
involves converting legitimate computer processes for illegitimate purposes
Term
"computer is incidental to other crimes" crime
Definition
not related to teh criminal act but assisted it to make it easier / faster
Term
"crimes associated with the prevelance of computers" crime
Definition
single presence of computers generate new versions of traditional crimes
Term
ways to protect data include
Definition
-discard unnecessary materials
-seperate job functions
-allow audit checks of data and security systems
Term
disaster recovery plan
Definition
a plan that is made to recover necesary information from a backup and recover a system fast and efficiently without downtime
Term
IPO
Definition
intput data > process data > output information
Term
data processing
Definition
processing of providing a context for data
Term
bit
Definition
uses of 1 0r 0
Term
binary system
Definition
using bits (1s and 0s) to make code and context and shit
Term
byte
Definition
a group of 8 bits
Term
ASCII
Definition
the american standard code for information interchange, states a standard for bit pattern representations
Term
data compensation
Definition
when comensation techniques are used to reduce the number of bytes required to store certain kinds of data (used for faster transmission of data)
Term
motherboard
Definition
one component of the computer that ties the rest together
Term
components of a motherboard
Definition
cpu, ram,
Term
CPU
Definition
the processor on teh motherboard
Term
system unit
Definition
main body of a computer that provides an enclosure of the important shit
Term
Central Processing Unit CPU
Definition
processes data by intrepreting and executing instructions that are contained in computer programs
Term
microprocessor
Definition
CPU manufactured wuth integrated circuits
Term
control unit
Definition
manager that keeps things organized and synchronized in teh system unit
Term
arithmetic logic unit
Definition
where the mathematical and logical operations are performed within the system unit
Term
dual core processor
Definition
processor that combines 2 or more independent processors into one package (also called chip level multiprocessing)
Term
processor speed is displayed in...
Definition
Ghz
MIPS
FLOPS
Term
Ghz
Definition
one billion hertz (one billion cycles per second)
Term
MIPS
Definition
instructions per second (one million per second, used to benchmark processors)
Term
FLOPS
Definition
floating point operations per second (performance based)
Term
BUS
Definition
a subsystem that transfers data between components
Term
primary memory
Definition
temporary but fast storage
Term
RAM
Definition
within the computer and closely connected to the processor (programs are held here while running)
Term
memory latency
Definition
the time between the processor initiating a request for a byte or word in memory until it is retrieved
Term
cache memory
Definition
special high speed memory (not necessary to communicate with RAM)
Term
ROM
Definition
read only memory, hard to edit so its main uses are for distribution of firmware
Term
firmware
Definition
software closely related to hardware
Term
virtual memory
Definition
allows multitasking computers to think that teh computer has more primary memory that it actually has
Term
mainframe (category of computer)
Definition
used by large organizations for the use of bulk data processing
Term
super computer (computer category)
Definition
processes data exceptionally fast (forecastting and simulation)
Term
microcomputers (computer category)
Definition
personal coputers, one user, desktops adn laptops
Term
workstations (computer category)
Definition
powerful high end microcomputers used for applications requesting more power
Term
minicomputers (computer category)
Definition
multiple users for processign transactions
Term
types of input devices include
Definition
keyboard
mouse
microphone
camera
scanner
barcode readers
card reader
speech recognition
Term
mouse types
Definition
-mechanical (ball on bottom)
-optical (light on bottom)
-touchpad (on laptops used through tough)
-trackball (rotating ball on top)
Term
output devices include
Definition
monitors
graphic cards
printers
plotters
speakers
digital music players
Term
pixel spacing
Definition
expressed in dot pitch and dots per inch
Term
resolution
Definition
number of individual pixels on display. given in ratios of horizontal x vertical
Term
refresh rate
Definition
the frequency with which the monitors display is refreshed
Term
color depth
Definition
array of colora a computer can display, (24 bit is up to 16million colors)
Term
2 measures of printer performance are
Definition
-DPI dots per minute
-PPM pages per minute
Term
5 types of printers
Definition
-laser
-ink jet
-dot matrix (impact printer that runs back and forth and prints by impact)
-photo printers (ink jets that are made to do high quality pics)
-thermal printer (heated and shit, does receipts)
Term
modem
Definition
devide that modulates a carriers signal to encode a computers digital data, and then demodulates the signal to decode the data
Term
wireless router
Definition
used to trasmiit the modems signal to a computer (access point is the router and knows as WIFI)
Term
operating system
Definition
the master program controlling all resources within a computer
Term
tasks of operating systems
Definition
process management
memory management
file system
mapping
file association
Term
process management
Definition
runs programs and allocates memory, deals with running multiple processes, uses context switching
Term
memory management
Definition
when the OS tracks what is needed and what is available and then reallocates memory (virtual memory management)
Term
file system
Definition
files must be managed and kept track of by teh OS, keep from fragmenting
Term
mapping
Definition
OS nagigating in a logical way of physical location of content to the logical content of a file
Term
file association
Definition
al files that are the same type will have the same extension
Term
windows
Definition
OS that multitasks teh ability to run several programs at once, opened door to many people unable to use command syntax
Term
unix
Definition
OS that is used in servers and workstations, programmed in language C, open systems/free software, master program is Kernel, strings together small programs to do bigger shit
Term
linux
Definition
OS like Unix, best example of open source development and free software, all programs are available to use by anybody, cameras/ps3/phones/mainframes/supercomputers
Term
macintosh
Definition
OS that eliminated possibility of one program crashing others, unix style multitasking
Term
virtual machine
Definition
copies of different OS's can run on one computer at the same time
Term
error checking
Definition
scans and searchign for errors in files
Term
disk defragmenter
Definition
scans an entire disck drive and looks for segments of unused disk area (helps computer run better and prevent data loss)
Term
disk cleanup
Definition
allows you to remove unused or little used files
Term
superfetch
Definition
overcomes sluggishmess from background idle programs running in RAM
Term
readyboost
Definition
extends amount of RAM available by external memory used as an addition cache
Term
control panel
Definition
allows users to control hundreds of teh computers individual components
Term
system software
Definition
like an OS, enables other software to run properly
Term
application software
Definition
like word processors, enables a user to perform a task
Term
to hardware relationship
Definition
devide drivers link software to hardware
Term
to data relationship
Definition
software is an intermediary between hardware and data (data=input and output)
Term
computer programing relationship
Definition
application software is usually written in high level programming language called source code and translated into machine language
Term
to people relationship
Definition
programs execute by users telling it what to do
Term
to software relationship
Definition
everything goes through the operating system
Term
hard disks
Definition
-used in computers cabinets or externel drives that are fast and store a large amount
-round rotation plates called platters
-sectors are pie shape part of platter
-organizaed in rigns called tracks
Term
floppy disk
Definition
stores data on a rotating surface (1.44 MB's)
Term
flash memory
Definition
USB drives and solid state (up to a few GB's)
Term
RAID redundant array of independent disks
Definition
technique that devides or replicates data among multiple hard drives (in tolerant computers, adds reduntand data, reduces data loss)
Term
disk mirroring
Definition
replication of logical disk volumes onto seperate hard disks in real time to ensure continuous availability of data, helps disaster recovery
Term
cd rom
Definition
optical storge device that contains data that is assessable to a computer from cd rom drive, stored by microscopic indentions called pits and read into bianary data, about 650 MB of data
Term
dvd
Definition
like a cd but 4-5 gb of storage
Term
data loss
Definition
unharmful data loss not intended to damage
Term
malicious data loss
Definition
data loss ment to harm
Term
denial of service
Definition
an aggressive attempt to prevent ligittimate users of a service from using that service or the server its installed on
Term
unsecured email
Definition
protection of propriority information between employeed and viruses
Term
online fraud risk
Definition
prevent through geolocation and order velocity monitoring
Term
how can a copany protect against fraud
Definition
-information acquisition (does the business have a good reason to access info?)
-storage (what computer security measures are placed aroun the systems storing personal data?)
-data access (is personal identifying info available only to those that need to know)
-data disposal (once data isnt needed is it disposed)
-personnel (are background checks and shit done?)
Term
cookies
Definition
[iece of data stored in a text file on a computer
Term
spyware
Definition
cookie that accesses personal data and sends it to a server somewhere over the fucking rainbow
Term
email virus
Definition
virus attached to an email for transportation between computers
Term
macro virus
Definition
written in scripted language and spread by inflecting documents and spreadsheets
Term
email worms
Definition
shitspread through emails
Term
instant messaging worms
Definition
travel through messaging networks
Term
file sharing networks worms
Definition
copy themselves to shared folders on hard disks
Term
internet worms
Definition
use TCP/IP communication ports
Term
standalone programs
Definition
pretend to be something else to trick a user
Term
keystroke logging
Definition
technique embedded in a program that enables recording and reporting of users key strokes
Term
phishing
Definition
trickign a person into giving away private account info
Term
web bug
Definition
tools used to monitor the activity of consumers at a website
Term
spam
Definition
abuse of email or messaging networks to send unsolicited and undesired messages
Term
zombie
Definition
is a ocmputer attached to teh internet that has been compromised by a securiy hacker or trojan or virus
Term
rootkits
Definition
set of software tools intended to conceal runnign proceses, files, or system data from the operating system
Term
identity theft
Definition
when someone elses personal information is used to commit fraud or crimes
Term
identity fraud
Definition
crime and involves using illegally obtained information to committ fradulent tasks
Term
password hacking (cracking of passowrds) can be done by...
Definition
-guessing
-dumpster diving
-shoulder surfing
-brute force attack (going through options)
-distionary attack (tries all combos likely to succeed)
-packet sniffing (interccepting and logging traffic through a network)
Term
why use an IT code
Definition
tomaintain a high standard of data quality and define acceptable behaviors
Term
what to consider when backing up files
Definition
-schedule back ups
-making multiple copues of backups
-storage of backup copies should be physical and away from source
-data compression is important when there is more data than media space
Term
encryption
Definition
process of obsuring information to make it unreadable without special knowledge
Term
cryptography
Definition
using alogorithims to encrypt and decrypt
Term
electronic funds transfer
Definition
provides payments and collection of receipts using electronic networks and equipment
Term
electonic data interchange
Definition
thecomputerto computer interchange of structured information
Term
e commerce
Definition
using computers and networks to automate commercial transactions
Term
types of e commerce
Definition
business to business
business to comsumer
customer to customer
business to governmet
citizen to government
business to
Term
what lures businesses towards e commerce
Definition
lower transaction costs
larger purchases per transactions
business cycle integration
people shop in different ways
larger catelogs
enhanced customer interaction
new business models
Term
4 main types of intermediaries who participate in e commerce
Definition
brokers
auctioneers
exchanges
dealers and resellers
Term
success factors of e commerce
Definition
market research
interface
documentation
security
inviting
value
incentive
Term
challenges to e commerce
Definition
unfulfilled expectations
unsatisfactory web experience
navigation
motivation
awkward proceesses
security
suitability
Term
fraud concerns related to e commerce
Definition
stolen credit cards
phishing
click fraud
auction adn retail schemes
markt manipulation
spam
Term
cloud computing
Definition
software as services model
Term
data centers
Definition
server farms
Term
smart dust
Definition
sensor so small that it floats in teh air, monitors the environment
Term
GIS
Definition
system for collecting, storing, managing, and analyzing data which are referenced to the earth
Term
nanties
Definition
little medical things that patrol the body and repeal invaders, like an artificial immune system
Term
software agents
Definition
focus on learning on users interests and act on users behalf
Term
bots
Definition
little deals that compare prices on the internet and disable viruses before they reach a computer
Term
web 3.0
Definition
basically an internet with more artificial shit
Term
mpeg
Definition
family of digital video compression standards
Term
GIF
Definition
graphic interchange format (8 bit per pixel bitmap image format
Term
WAV
Definition
standard digital audio file format for storing sound data, allows audio recording to be captured and stored often on a cd
Term
universan serial bus
Definition
allows peripheral devices to be connects without the need to plug expansion cords into the computers
Term
plug and play
Definition
describes the process for attaching a new device to the computer system, allows the addition of a new device without requiring reconfiguration or manual installiation
Term
bios
Definition
basic input/output system, small program run by a computer when first powered on, used to stabilize the machine and shti
Term
graphical user interfaces
Definition
allows users to navigate a computer using a mouse
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