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Management Information System MIS 202

Management Information System MIS 202. Review of MIS 101. Instructor. Name: Mohammed Arif Mazumder, MSc. Current Position: Senior Lecturer, CSE, DIU Education: MSc: University of Wollongong, Australia. Major in Network Security B.Sc. (Engineering): University of Wollongong, Australia.

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Management Information System MIS 202

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  1. Management Information SystemMIS 202 Review of MIS 101

  2. Instructor • Name: Mohammed Arif Mazumder, MSc. • Current Position: Senior Lecturer, CSE, DIU • Education: • MSc: University of Wollongong, Australia. • Major in Network Security • B.Sc. (Engineering): University of Wollongong, Australia. • Major in Software Engineering • Work Experience: Network Engineer, World Health Organization’s Regional Office, JICA, UNDP, BRAC Bank, E.Law Asia Pacific Australia, British American Tobacco, Australia, AIUB.

  3. Instructor Cont’d • Email: arifmazumder@daffodilvarsity.edu.bd • Please do not send me personal emails using this address. • Personal Web Page: http://www.arifmarias.wordpress.com/You will find a link to the course on this page.

  4. Study Materials • Textbooks: • Essentials of Business Information Systems (12th Edition), Kenneth C. Laudon and Jane P. Laudon, Pearson Prentice Hall. •  Management Information Systems (8th Edition), Raymond McLeod, and George Schell. • Introduction to e-commerce (2nd Edition), Jeffery Rayport, and Bernard Jaworski, ISBN:0-07-255347-2  

  5. Study Materials Cont’d • Lecture Notes: • Provide by the instructor • These notes should be augmented by your own notes from the class. • Any additional materials discussed in the class are required unless otherwise specified. • PowerPoint: • Provided by the instructor • These presentations are not enough as study materials. • Practice Questions: • The instructor will post sample questions for practice for the exams on the course Website.

  6. Project Requirements The project can be one of the following activities: • A Term Paper. Only one student can participate in a term paper. See paper requirements on the course website. • A Business Plan: Up to three students can participate in developing a business model. This will be covered very late in the course. • A presentation of a paper: • A student may opt to present a paper from a list of papers provided by the instructor (on the course Website). Only one student can present the same topic. • Typically these papers are large and require careful reading. • The student is expected to fully understand the paper, prepare a 15 minutes presentation on it, and be ready to answer questions during the presentation. Such presentations will be part of the midterm and final exams.

  7. Introduction to Computers, Networks, and Databases

  8. What is a computer? A machine that, under a program’s direction, performs four basic operations: input, processing, output, and storage

  9. What is a program? A list of instructions that tells a computer how to perform the four basic operations

  10. What is input? • Data entered into the computer system for processing • Electrical impulses representing words, numbers, images, or sounds

  11. What is processing? Performing arithmetic or comparison (logical) operations on the data 4 + 16 = 20 Arithmetic 728 > 546 Logic

  12. What is output? Showing the results of the processing operation in a way people can understand

  13. What is storage? Saving the data or output so that it can be used again later

  14. What are the computer’s physical components? HARDWARE • Input devices- Enable users to put data into the computer for processing • Processing circuitry- Components located in the system’s case that transform data into information • Output devices- Peripherals that show the results of processing • Storage devices- Used to hold all the programs and data that the computer uses • Communication Devices- Used to move data between computers

  15. What are input devices? Mouse-pointing device Keyboard Microphone-speech-recognition

  16. What are processing devices? Motherboard Expansion card Central Processing Unit- CPU Random Access Memory-RAM

  17. What are output devices? Monitor Printer Speakers

  18. Hard Drive What are storage devices ? Floppy Disk Drive Micro Drive CD / DVD Drive Zip Drive Tape Drive Jazz Drive

  19. What are communications devices ? Modem Network Interface Card- NIC

  20. What are the different types of computers? Desktop- PC, Microcomputer Workstation Supercomputer Mainframe Minicomputer Server Personal Digital Assistant- PDA, Handheld, Pocket PC Notebook- Laptop

  21. What is software? Programs that give the computer’s hardware its step-by-step instructions

  22. What are the different types of software? System software- All programs that help the computer function properly Application software- All the programs you use to perform a task such as writing a letter or browsing the World Wide Web Application software System software

  23. What is an operating system? • System software that . . . • Coordinates the various functions of the computer’s hardware • Provide support for running application software • Provide utility programs for optimizing computer performance

  24. What is a software suite? A collection of full featured standalone programs that usually share a common command structure and have similar interfaces MS WORD MS POWERPOINT MS EXCEL MS FRONT PAGE MS ACCESS

  25. What is the internet? A world-spanning computer network

  26. Network • A network is a system of hardware, software and transmission components that collectively allow two application programs on two different stations connected to the network to communicate well.

  27. Elements of a Network Access links connect stations to the first switch Usually copper wire Increasingly, radio links Access Link Access Link Access Link Access Link

  28. Client/Server Architecture Usually, two types of stations Clients and Servers Server Client PC Request Response Network Clients Receive Services Servers Provide Services

  29. Geographic Scope • Local Area Network (LAN) • Limited geographical distance: home, office, building, campus, industrial part • Customer premises operation • User firm chooses technology • User firm needs to manage on ongoing basis • Low cost per bit transmitted • Companies can afford high speed • 100 Mbps to the desktop is typical

  30. Geographic Scope WAN • Wide Area Network (WAN) • To link sites • Long distances • Requires the use of carriers to provide service • Limited and complex choices but carrier manages • High cost per bit transmitted • Companies cannot afford high speeds • Usually low speed (56 kbps to a few megabits per second)

  31. Geographic Scope • Other Distinctions • Metropolitan Area Network (MAN) • Single urban area (city and its suburbs) • Faster than long-distance WANs • Personal Area Network (PAN) • A person’s body or desk area • Storage Area Network (SAN) • To link servers to storage devices

  32. Internet • An internet is a group of networks linked together with routers in a way that allows an application program on any station on any network in the internet to be able to communicate with an application program on another station on any other network. Network 1 Network 2

  33. The Internet Network Webserver Software Browser Packet Packet Router Route Router Router Packet Webserver (Host) IP Address=128.171.17.13 Host name=voyager.cba.hawaii.edu User PC (Host) IP Address=128.150.50.9

  34. Databases

  35. What is a Database ? • A Database (DB) is collection of related data - with the following properties • A DB is designed, built and populated with data for a specific purpose • A DB represents some aspect of the real world. • Self-Describing: A database maintains a description of the data it contains (Catalog) • Related: Data has some relationship to one another, e.g., e.g.: Information stored in an University • Students, Courses, Faculty, Students taking courses, Faculty teaching courses, ....

  36. Users DBS Application Programs Query and transaction Processing Management of Stored Data DBMS Meta-data Database A Database System Components • The Database • Database Management System (DBMS) • Application Programs

  37. Database Management System (DBMS) • A set of programs that are used to: • Define, construct, maintain and manipulate data in a database. • Enable one or more users create and concurrently access data in a database. • Manage user requests, so that users and programs are free from having to understand where the data is physically located on storage media and who else may also be accessing the data. • The most commonly used DBMS is a relational database management system (RDBMS). Examples: Access, Oracle, DB2 • A standard user and program interface to a DBMS is the Structured Query Language (SQL).

  38. Advantages of a DBMS • Data Consistency and Integrity - by controlling access and minimizing data duplication • Application program independence - by storing data in a uniform fashion • Data Sharing (concurrency control) - by controlling access to data items, many users can access data concurrently • Backup and Recovery • Security and Privacy • Multiple views of data

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