mis chap # 1
TRANSCRIPT
MANAGEMENT INFORMATION SYSTEM
Chapter 1Introduction to Information Systems
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OVERVIEW
History of Information Systems (IS)Evolution in Computer HardwareIntroduction to Computer ArchitectureIntroduction to Communication ArchitectureComputer Applications, MISDecision Support SystemProblem Solving and Decision MakingProblem Solving PhasesThe future of Information Technology
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HISTORY OF INFORMATION SYSTEMS
Evolution in Computer HardwareMainframeMultitasking
Smaller ComputersMinicomputersMicrocomputersPersonal computers (PC)
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INTRODUCTION TO COMPUTER ARCHITECTURE
Hardwareprocessor, keyboard, monitor, mouse, printer,
etc. Software
application, operating, etc. Used to support managerial decision making.
Modemhardware device that modulates the digital
signals from a computer into analog signals (telephone system), and vice versa.
Direct communication standards Wireless networks
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COMMUNICATIONS ARCHITECTURE
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THE EVOLUTION IN COMPUTER APPLICATIONS
Information systems are virtual systems that enable management to
control the operations of the physical system of the firm.
Physical systemtangible resources such as materials,
personnel, machines, and money. Virtual system
information resources that are used to represent the physical system.
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THE PHYSICAL SYSTEM OF THE FIRM
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THE EVOLUTION OF COMPUTER APPLICATIONS (CONT’D)
Open systemis a firm’s physical system that
interacts with its environment by means of physical resource flows.
Closed system one that does not communicate
with its environment.
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TRANSACTION PROCESSING SYSTEMS
Datafacts and figures that are generally unusable
due to their large volume and unrefined nature.
Informationprocessed data that is meaningful; tells users
something. Transaction Processing System (TPS)
processes data that reflects the activities of the firm.
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A MODEL OF TPS
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MANAGEMENT INFORMATION SYSTEMS
Management Information System (MIS) is a computer-based system that makes
information available to users with similar needs.
Report-writing software produces both periodic and special reports.
Mathematical models produces information as a simulation of the firm’s
operations.
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MIS MODEL
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MANAGEMENT INFORMATION SYSTEMS
Information provided by MIS describes the firm or one of its major systems.What has happened in the past.What is happening now.What is likely to happen in the future.
Interorganizational information system (IOS)is formed when a firm interacts with
others, such as suppliers.13
VIRTUAL OFFICE SYSTEMS
Office automationuse of electronics to facilitate communication.
Personal productivity systemsuse technology to self-manage clerical tasks
such as calendars, address books, etc. Virtual office
performing office activities independent of a particular physical location.
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DECISION SUPPORT SYSTEMS
Decision Support System (DSS)assists management in solving a problem.
Groupwaregroup-oriented software.
Group decision support system (GDSS)combines groupware and the DSS.
Artificial intelligence (AI)the science of providing computers with human
intelligence. 15
DSS MODEL
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INFORMATION SYSTEM USERS
First users were clerical users on TPSs. MISs added problem-solvers as users. Managerial Levels
Strategic planning levelManagement control levelOperational control level
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MANAGEMENT LEVELS CAN INFLUENCE BOTH THE SOURCE AND PRESENTATION FORM OF INFORMATION
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MANAGERSCAN BE FOUND ON ALL BUSINESS AREAS OF THE FIRM
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MANAGEMENT LEVEL MAY INFLUENCE THE RELATIVE EMPHASIS ON THE MANAGEMENT FUNCTION
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MINTZBERG’S MANAGERIAL ROLES
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PROBLEM SOLVING AND DECISION MAKING
Problemcondition or event that is harmful or
potentially harmful to a firm or that is beneficial or potentially beneficial.
Solutionoutcome of the problem-solving activity.
Decisiona particular selected course of action.
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PROBLEM-SOLVING PHASES
The four phases are: Intelligence activity.
Search the environment for conditions calling for a solution.
Design activity.Invent, develop, and analyze possible courses
of action. Choice activity.
Select a particular course of action from those available.
Review activity. Assess past choices.
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INFORMATION SUPPORTS EACH PROBLEM-SOLVING PHASE
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THE FUTURE OF INFORMATION TECHNOLOGY
Reduced cost and increased power of both computers and communications.
Computers and communications are converging, i.e., cell phones with browsers.
Future computing will be low cost, small in size, mobile, and connected.
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EXTRA: MOORE’S LAW
Coined in 1960s Originally stated that the storage density
of integrated circuits on a silicon chip doubled about every year
By the 1970s, the rate doubling had increased to 18 months, a pace that continues today
What this means to users is that power of a computer doubles about every 18 months for a given cost 26
EXTRA: MOORE’S LAW
E.g. Salary comparison
YEARYEAR FRIENDFRIEND YOUYOU11 $40,000$40,000 $5,000$5,00033 $57,600$57,600 $20,000$20,00066 $99,533$99,533 $80,000$80,00099 $171,993$171,993 $320,000$320,0001212 $297,203$297,203 $1,280,000$1,280,0001515 $513,567$513,567 $5,120,000$5,120,000
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