Information Systems Defined www assignmentpoint com Information Systems

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Information Systems Defined www. assignmentpoint. com

Information Systems Defined www. assignmentpoint. com

Information Systems Defined § A collection of components that work together to provide information

Information Systems Defined § A collection of components that work together to provide information to help in business operations and management. § Functions: § Input § Storage § Processing § Output www. assignmentpoint. com

Information System Functions www. assignmentpoint. com

Information System Functions www. assignmentpoint. com

Data vs. Information § Data is a representation of a: § Word § Number

Data vs. Information § Data is a representation of a: § Word § Number § Image § Picture § Sound § Information is data that is meaningful to someone www. assignmentpoint. com

How an Information System Processes Data www. assignmentpoint. com

How an Information System Processes Data www. assignmentpoint. com

Types of Information Systems § Individual information systems - affects a single person §

Types of Information Systems § Individual information systems - affects a single person § Examples: § Word processing software used to prepare written documents § Spreadsheet software used for financial analysis § Graphics software used for presentations § Personal database software for sales analysis www. assignmentpoint. com

Types of Information Systems (cont’d) § Workgroup information systems - affects a group of

Types of Information Systems (cont’d) § Workgroup information systems - affects a group of individuals who work together § Examples: § Electronic mail (email) § Information sharing system www. assignmentpoint. com

Types of Information Systems (cont’d) § Organizational information systems affects people throughout a business

Types of Information Systems (cont’d) § Organizational information systems affects people throughout a business or organization § Examples: § Payroll systems § Automatic teller machines (ATMs) www. assignmentpoint. com

Types of Information Systems (cont’d) § Interorganizational information systems functions among several organizations §

Types of Information Systems (cont’d) § Interorganizational information systems functions among several organizations § Examples: § Electronic data interchange (EDI) § Electronic funds transfer (EFT) www. assignmentpoint. com

Types of Information Systems (cont’d) § International information systems - spans international borders §

Types of Information Systems (cont’d) § International information systems - spans international borders § Example: § International production scheduling system www. assignmentpoint. com

Information Systems Users § Users enter input data directly or indirectly § Examples of

Information Systems Users § Users enter input data directly or indirectly § Examples of direct input: pressing keys on a keyboard, touch screens, barcode scanners § Examples of indirect input: giving data to a clerical person to enter § Users must be ethical access to computer systems will be restricted to a few people www. assignmentpoint. com

ETHICAL USE OF IS - Gain access to personal data Copying software or piracy

ETHICAL USE OF IS - Gain access to personal data Copying software or piracy Use IS to steal money, credit card forgery Sometimes IS cause ethical dilemma SOURCE: Liker, et al, 1987 www. assignmentpoint. com

Connecting Users to IT Networks § Network: a collection of computers and related equipment

Connecting Users to IT Networks § Network: a collection of computers and related equipment connected electronically in order to communicate with each other. § Networks connect users to information technology § Network types: Local Area Network (LAN), Wide Area Network (WAN), International WAN (e. g. , the Internet) www. assignmentpoint. com

Local Area Network (LAN) § A LAN usually connects users in the same building

Local Area Network (LAN) § A LAN usually connects users in the same building or buildings next to each other. www. assignmentpoint. com

Wide Area Network (WAN) § A WAN usually connects users in the city, region,

Wide Area Network (WAN) § A WAN usually connects users in the city, region, or country. www. assignmentpoint. com

International WAN § The Internet is a worldwide collection of interconnected networks that allow

International WAN § The Internet is a worldwide collection of interconnected networks that allow users to access information technology. § Example: Locating information via the World Wide Web. www. assignmentpoint. com

International WAN/Internet www. assignmentpoint. com

International WAN/Internet www. assignmentpoint. com

Information Systems Benefits § Providing better information for better decision making § Improving service

Information Systems Benefits § Providing better information for better decision making § Improving service for customers § Improving productivity to allow people to accomplish more in a period of time. www. assignmentpoint. com