Shared Flashcard Set

Details

CSIT
Chap 7 - 9
59
Computer Networking
Undergraduate 1
12/07/2010

Additional Computer Networking Flashcards

 


 

Cards

Term
Digital Convergence
Definition

 

§Describes the combining of several industries – computers, communications, consumer electronics, entertainment, and mass media – through various devices that exchange data in digital form
Term
Tree-and-Branch Communications
Definition

 

§A centralized information provider sends out messages through many channels to thousands of consumers
Term
Switch-network communications
Definition

 

§A common carrier provides circuit switching that creates a temporary two-way connection between one public user and another
Term
Point-and-shoot
Definition

 

§Automatically adjusts settings such as exposure and focus
Term
Single-lens reflect
Definition
Uses a reflecting mirror to reflect the
incoming light so the viewfinder shows
what the lens is framing
Term
High Definitions
Definition

 

§Works with digital broadcasting signals
Term
Files
Definition
Collections of related records
Term
Records
Definition
collections of related fields
Term
Field
Definition
unit of data containing 1 or more characters
Term
Character
Definition
a letter number or special character made of bits
Term
bit
Definition
0 or 1
Term
key field
Definition
the field that identifies a record
Term
program files
Definition
files that contain software instructions
Term
excutable files
Definition
program files translated so they can be executed on the computer
Term
data files
Definition
files that contain data such as words, numbers, pictures, or sounds
Term
Database Management Systems
Definition

 

§Software written specifically to control the structure of a database and access to the data
Term
Data Dictionary
Definition

 

§A repository that stores the data definitions and descriptions of the structure of the data and the database
Term
DBMS Utilities
Definition

 

§Programs that allow you to maintain the database by creating, editing, deleting data, records, and files
Term
Report Genorator
Definition

 

§Program for producing an on-screen or printed document form all or part of a database
Term
Database Administrator
Definition

 

§A high-paid, responsible position within an organization
Term

 

§Hierarchical database
Definition

 

§Fields or records are arranged in a family tree, with child records subordinate to parent or higher-level records
Term
Network Database
Definition

 

§Like a hierarchical database, but each child record can have more than one parent record
Term
relational database
Definition

 

§Relates, or connects, data in different files through the use of a key, or common data element
Term
object-oriented database
Definition

 

§Uses objects (software written in small, reusable chunks) as elements within database files
Term
multidimensional database
Definition

 

§Models data as facts, dimensions, or numerical measures for use in the interactive analysis of large amounts of data
Term
data mining
Definition
the computer-assisted process of sifting through and analyzing vast amounts of data to extract hidden patterns and meaning and to discover new knowledge
Term
Data Warehouse
Definition
a special database that shows detailed and summary data from multiple sources
Term
regression analysis
Definition

 

§Develops a formula to fit patterns in the data that has been extracted
Term
classification analysis
Definition

 

§A statistical pattern recognition process that is applied to data sets with more than just numerical data
Term
e-commerce
Definition

 

§The buying and selling of products and services through computer networks
Term
business to business
Definition

 

§A business sells to other businesses using the internet or a private network to cut transaction costs and increase efficiencies
Term
business to consumer
Definition

 

§A business sells goods or services to consumers
Term
consumer to consumer
Definition

 

§Consumers sell goods or services directly to other consumers with the help of a third party, such as eBay.
Term
strategic level management
Definition

 

§Top managers concerned with strategic or long-term planning and decisions
Term
tactical level management
Definition

 

§Middle level managers who make decisions to implement the strategic goals set for the organization
Term
operation level management
Definition

 

§Low-level supervisors make daily operational decisions
Term
transactions proccessing systems
Definition

 

§Transactions are recorded events of routine business activities such as bills, orders, and inventory
Term
managment information systems
Definition

 

§Computer-based information system that uses data recorded by a TPS as input to programs that produce routine reports as output
Term
decisions support systems
Definition

 

§Computer information system that provides a flexible tool for analysis and helps management focus on the future
Term
executive support system
Definition

 

§An easy-to-use DSS made especially for strategic managers to support strategic decision-making
Term
inference engine
Definition

 

§The software that controls the search of the expert system’s knowledge base and produces conclusions
Term
intelligent agents
Definition

 

§A form of software with built-in intelligence that monitors work patterns, asks questions, and performs work tasks on your behalf
Term
pattern recognition
Definition

 

§Involves a camera and software that identify recurring patterns in its vision and maps the pattern against patterns stored in a database
Term
fuzzy logic
Definition

 

§A method of dealing with imprecise data and uncertainty, with problems that have many answers rather than one
Term
virtual reality
Definition

 

§A computer-generated artificial reality that projects a person into a sensation of 3-D space
Term
robotics
Definition

 

§The development and study of machines that can perform work that is normally done by people
Term
weak a.i.
Definition
claims computers can be programmed to simulate human cognition
Term
strong a.i.
Definition
claims that computers can think on a level that is equal to or better than humans, and can also achieve consciousness
Term
identity theft
Definition

 

§A crime in which thieves hijack your identity and use your good credit rating to get cash, take out loans, order credit cards, and buy things in your name
Term
Procedural Erros
Definition

 

§When people fail to follow safe procedures, errors can occur
Term
Dirty Data
Definition

 

§Incomplete, updated, or inaccurate data
Term
Pharming
Definition

 

§Malicious software is implanted in your computer that directs you to an imposter web page
Term
Trojan Horses
Definition

 

§A program such as a “free” online game or screensaver that loads hidden programs that take over your computer or cause mischief without your knowledge
Term
Security
Definition

 

§A system of safeguards for protecting information technology against disasters, system failures, and unauthorized access that can result in damage or loss
Term
CERT
Definition

 

§Provides round-the-clock information on international computer security threats
Term
Encryption
Definition

 

§The process of altering readable data into unreadable form to prevent unauthorized access
Term
Disaster-Recovery Plans
Definition

 

§A method of restoring information-processing operations that have been halted by destruction or accident
Supporting users have an ad free experience!