Definitions - Final Exam - Chptrs 14, 15, 16, 17 Flashcards
Data
raw facts and figures that may or may not be meaningful to a business decision
Information
Knowledge gained from processing data
Information System
Organized method for collecting, storing and communicating past, present and projected information on internal operations and external intelligence
(CIO) Chief Information Officer
Executive responsible for managing a firms information systems and related computer technologies
Computer Based Information Systems
Information systems that use computer and related technologies to store information electronically in an organized, accessible manner
Database
Centralized integrated collection of data resources
Operational Support Systems
Information systems designed to produce a variety of information on an organizations activities for both internal and external users
Transaction processing systems
Operational support systems that record and process data from business transactions
Process Control Systems
Operational support systems that monitor and control physical processes
Management Support Systems
Information systems designed to provide support for decision making
(MIS) Management Information Systems
Information systems that produces reports for Managers and other professionals
(DSS) Decision support systems
Information systems supporting business-people during decision making process
(ESS) Executive Support Systems
Information systems that lets senior executives access to firms primary database, often with a computer or voice recognition
Expert System
Computer program that imitates human thinking through complicated sets of “if-then” rules
Hardware
Tangible, Physical elements of a computer system
Server
Heart of mid-range computer network
Software
Programs, routines and languages that control a computer and tell it how to operate
(LANs) Local Area Networks
Computer Networks that connect machines within limited access such as buildings or several nearby buildings
(WANs) Wide Area Networks
Computer networks that tie larger geographical regions together by using telephone lines and microwave and satellite transmission
WIFI
Wireless network that allows multiple devices to connect and communicate with one another through radio waves
Intranet
Computer network similar to internet but limits access to authorized users
Firewall
Security system for computers that limits data transfers to certain locations. Tracks system use so Managers can identify security threats, including attempts to log on with invalid passwords
(VPNs) Virtual Private Networks
Secure connections between two points on the internet
VoIP
Alternative communication method that uses the internet to transmit messages as opposed to phone lines
Malware
malicious software designed to infect computers
Viruses
Malicious software programs that attach themselves to programs (called hosts) and change them or destroy data
Worm
Small piece of software that uses a security hole in a network to replicate itself
Botnet
Network of PCs that have been infected with onr or more data-stealing viruses
Trojan Horse
A program that claims to do one thing but in reality does something else usually malicious in nature