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Management Information Systems: an Overview

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Management Information Systems: an Overview EDUSAT LEARNING RESOURCE MATERIAL ON MMMAAANNNAAAGGGEEEMMMEEENNNTTT IIINNNFFFOOORRRMMMAAATTTIIIOOONNN SSSYYYSSSTTTEEEMMMSSS 5th Semester Computer Science Engineering According to S. C. T. E &V. T. Syllabus for Diploma Students Prepared By:- SRI RAMESH CHANDRA SAHOO, Sr. Lect. CSE/IT U.C.P.ENGG.SCHOOL, BERHAMPUR SMT NAYANA PATEL, PTGF CSE/IT U.C.P.ENGG.SCHOOL, BERHAMPUR MISS SASMITA MISRA, PTGF CSE/IT U.C.P.ENGG.SCHOOL, BERHAMPUR Copy Right DTE&T, Odisha CONTENTS CHAPTER-1 ...................................................................................................................................................... 7 MANAGEMENT INFORMATION SYSTEMS: AN OVERVIEW ............................................................. 7 1.1. INTRODUCTION ...................................................................................................................... 7 1.2. MANAGEMENT INFORMATION SYSYEM ......................................................................... 7 1.2.1. Management ......................................................................................................................... 7 1.2.2. Information .......................................................................................................................... 8 1.2.3. System .................................................................................................................................. 9 1.3. DEFINITIONS OF MIS. ............................................................................................................ 9 1.4. FRAMEWORK FOR MIS ORGANISATION AND MANAGEMENT TRIANGLE ............ 10 1.4.1. Levels of Management ....................................................................................................... 10 1.5. INFORMATION NEEDS AND ITS ECONOMICS ............................................................... 10 1.5.1. Information Classification ................................................................................................. 11 1.6. SYSTEMS APPROACH .......................................................................................................... 11 1.6.1. Classification of systems.................................................................................................... 12 1.6.2. System life cycle ................................................................................................................ 13 1.7. MEANING AND OBJECTIVES OF MIS ............................................................................... 13 1.7.1. Categories of MIS: ............................................................................................................. 14 1.7.2. MIS and Organisation Structure: ....................................................................................... 14 1.7.3. Classification of MIS ......................................................................................................... 15 1.7.4. Implementation of MIS ...................................................................................................... 16 1.8. DISADVANTAGES OF INFORMATION SYSTEM ............................................................. 17 1.9. APPROACHES OF MIS DEVELOPMENT ............................................................................ 17 1.10. CONSTRAINTS IN DEVELOPING AN MIS....................................................................... 18 1.11. MIS AND USE OF COMPUTER .......................................................................................... 18 1.12. LIMITATIONS OF MIS......................................................................................................... 19 1.13. COMPUTER BASED INFORMATION SYSTEMS ............................................................. 19 CHAPTER-2 .................................................................................................................................................... 21 INFORMATION SYSTEMS FOR DECISION MAKING ......................................................................... 21 2.1. INTRODUCTION .................................................................................................................... 21 2.2. TRANSACTION PROCESSING SYSTEM ............................................................................ 21 2.3. MANAGEMENT INFORMATION SYSTEMS ...................................................................... 23 2.3.1. Decision Making In MIS ................................................................................................... 23 2.4. INTELLIGENT SUPPORT SYSTEMS ................................................................................... 25 2.4.1. Decision support system: ................................................................................................... 25 2.4.2. Executive information systems: ......................................................................................... 25 2.4.3. Artificial intelligence and Expert systems: ........................................................................ 26 2.5. OFFICE AUTOMATION SYSTEM ........................................................................................ 26 CHAPTER-3 .................................................................................................................................................... 29 COMPUTER HARDWARE FOR INFORMATION SYSTEMS ............................................................... 29 3.1. INTRODUCTION .................................................................................................................... 29 3.2. BASICS OF DATA REPRESENTATION .............................................................................. 29 3.3. TYPES OF COMPUTERS ....................................................................................................... 30 3.4. BASIC COMPONENTS OF COMPUTER SYSTEMS ........................................................... 31 3.5. FACTORS TO BUY A PC: ...................................................................................................... 35 CHAPTER-4 .................................................................................................................................................... 36 COMPUTER SOFTWARE FOR INFORMATION SYSTEMS ................................................................ 36 i 4.1. INTRODUCTION .................................................................................................................... 36 4.2. PROGRAMMING LANGUAGES ........................................................................................... 36 4.2.1. Object oriented programming ............................................................................................ 38 4.2.2. Visual Programming: ......................................................................................................... 39 4.3. CLASSIFICATION OF SOFTWARE: .................................................................................... 39 4.3.1. System Software ................................................................................................................ 39 4.3.2. Application Software: ........................................................................................................ 40 4.4. ROLE OF SOFTWARE IN PROBLEM SOLVING ................................................................ 41 4.5. CRITERIA FOR INVESTMENT IN HARDWARE AND SOFTWARE ............................... 41 CHAPTER-5 .................................................................................................................................................... 43 DATA COMMUNICATIONS SYSTEM ...................................................................................................... 43 5.1. INTRODUCTION .................................................................................................................... 43 5.2. TELECOMMUNICATIONS SYSTEM ................................................................................... 43 5.2.1. Telecommunications Channels .......................................................................................... 43 5.2.2. Telecommunications Media ............................................................................................... 44 5.3. DATA COMMUNICATIONS HARDWARE ......................................................................... 44 5.4. DATA COMMUNICATIONS SOFTWARE ........................................................................... 45 5.5. COMMUNICATION NETWORKS ........................................................................................ 45 5.5.1. Private Branch Exchanges (PBXs) .................................................................................... 46 5.5.2. Integrated Services Digital Networks (ISDNs): ................................................................ 46 5.5.3. Local Area Networks (LANS) ........................................................................................... 47 5.5.4. Wide Area Networks (WANS) .......................................................................................... 47 5.5.5. Value Added Networks (VANS) ....................................................................................... 48 5.6. DISTRIBUTED SYSTEMS ..................................................................................................... 48 5.7. TOPOLOGY OF COMPUTER NETWORK ........................................................................... 49 5.8. PROTOCOLS AND NETWORK ARCHITECTURE ............................................................
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