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Software: Systems and Application Software

Software: Systems and Application Software. Chapter 4. Principles and Learning Objectives.

norman-riggs
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Software: Systems and Application Software

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  1. Software: Systems and Application Software Chapter 4 Principles of Information Systems, Sixth Edition

  2. Principles and Learning Objectives • When selecting an operating system, you must consider the current and future needs for application software to meet the needs of the organization. In addition, your choice of a particular operating system must be consistent with your choice of hardware. • Identify & describe the functions of the 2 basic kinds of software. • Outline the role of the operating system & identify the features of several popular operating systems. Principles of Information Systems, Sixth Edition

  3. Principles and Learning Objectives • Do not develop proprietary application software unless doing so will meet a compelling business need that can provide a competitive advantage. • Discuss how applications software can support personal, workgroup, and enterprise business objectives. • Identify 3 basic approaches to developing applications software and discuss the pros and cons of each. Principles of Information Systems, Sixth Edition

  4. Principles and Learning Objectives • Choose a programming language whose functional characteristics are appropriate to the task at hand, taking into consideration the skills and experience of the programming staff. • Outline the evolution of programming languages. • The software industry continues to undergo constant change; users need to be aware of recent trends and issues to be effective in their business and personal life. • Differentiate among the five generations of programming languages. Principles of Information Systems, Sixth Edition

  5. An Overview of Software • Computer program - sequences of instructions for the computer • Documentation - describes program functions • Systems software - coordinates the activities of hardware & programs • Applications software - helps users solve particular problems Principles of Information Systems, Sixth Edition

  6. The Importance of Software in Business Principles of Information Systems, Sixth Edition

  7. Supporting Individual, Group, and Organizational Goals Principles of Information Systems, Sixth Edition

  8. Operating Systems Principles of Information Systems, Sixth Edition

  9. Operating Systems • Perform common hardware functions • Provide a user interface • Provide hardware independence • Manage system memory • Manage processing • Control access to system resources • Manage files Principles of Information Systems, Sixth Edition

  10. The Role of the Operating System Principles of Information Systems, Sixth Edition

  11. Common Hardware Functions • Accept keyboard input • Store data on disks • Send data to output devices Principles of Information Systems, Sixth Edition

  12. User Interface • Command-based interfaces • Graphical User Interfaces (GUIs) Principles of Information Systems, Sixth Edition

  13. Hardware Independence Principles of Information Systems, Sixth Edition

  14. Memory Management Principles of Information Systems, Sixth Edition

  15. Processing Tasks • Multitasking - more than one program can run at a time using a single processor • Time-sharing - multiple users can simultaneously use the resources of a single processor • Scalability - easy adaptation to more users or tasks Principles of Information Systems, Sixth Edition

  16. Access to System Resources • Protection against unauthorized access • Logins and passwords Principles of Information Systems, Sixth Edition

  17. Personal Computer Operating Systems Principles of Information Systems, Sixth Edition

  18. Personal Computer Operating Systems Principles of Information Systems, Sixth Edition

  19. Workgroup Operating Systems • Netware • Windows NT Server 4.0 • Windows 2000 Server • Unix • Red Hat Linux • Mac OS X Server Principles of Information Systems, Sixth Edition

  20. Enterprise Operating Systems • IBM’s OS/390 • HP’s MPE/iX (Multiprogramming Executive with integrated POSIX) • IBM’s z/OS • Linux Principles of Information Systems, Sixth Edition

  21. Consumer Appliance Operating Systems • Windows CE.NET • Mobil Linux • Windows XP Embedded • Handheld PC • Pocket PC • Palm OS Principles of Information Systems, Sixth Edition

  22. Nokia 7650 Principles of Information Systems, Sixth Edition

  23. Utility Programs Principles of Information Systems, Sixth Edition

  24. Types and Functions of Applications Software Principles of Information Systems, Sixth Edition

  25. Sources of Software Principles of Information Systems, Sixth Edition

  26. Comparison of Proprietary and Off-the-Shelf Software Principles of Information Systems, Sixth Edition

  27. Personal Application Software Principles of Information Systems, Sixth Edition

  28. Personal and Application Software Principles of Information Systems, Sixth Edition

  29. Personal and Application Software Principles of Information Systems, Sixth Edition

  30. TurboTax Principles of Information Systems, Sixth Edition

  31. Quicken Principles of Information Systems, Sixth Edition

  32. Word Processing Principles of Information Systems, Sixth Edition

  33. Spreadsheet Analysis Principles of Information Systems, Sixth Edition

  34. Database Applications Principles of Information Systems, Sixth Edition

  35. Graphics Programs Principles of Information Systems, Sixth Edition

  36. On-Line Information Systems Principles of Information Systems, Sixth Edition

  37. Software Suite Principles of Information Systems, Sixth Edition

  38. Workgroup Application Software • Groupware • Collaborative computing software Principles of Information Systems, Sixth Edition

  39. Group Scheduling Principles of Information Systems, Sixth Edition

  40. Examples of Enterprise Application Software Principles of Information Systems, Sixth Edition

  41. Enterprise Application Software Principles of Information Systems, Sixth Edition

  42. Selected Enterprise Resource Vendors Principles of Information Systems, Sixth Edition

  43. Programming Languages • Commands and statements combined according to a particular syntax • Different languages have different characteristics Principles of Information Systems, Sixth Edition

  44. Programming Languages Principles of Information Systems, Sixth Edition

  45. First-Generation Languages • Machine language • ASCII (American Standard Code for Information Interchange) Principles of Information Systems, Sixth Edition

  46. Second-Generation Languages • Assembly languages • Assemblers • Symbolic language Principles of Information Systems, Sixth Edition

  47. Third-Generation Languages Principles of Information Systems, Sixth Edition

  48. Fourth-Generation Languages • 4GLs • Programs tell the CPU the desired results, not how to get them • Examples: SQL, SAS Principles of Information Systems, Sixth Edition

  49. Fifth-Generation Languages • 5GLs • Uses a visual or graphical development interface to create source language • Examples: Visual Basic, PC COBOL, and Visual C++ Principles of Information Systems, Sixth Edition

  50. Object-Oriented Programming Languages • Objects - data and actions that can be performed on the data • Encapsulation - group items into an object • Polymorphism - one procedure can work with multiple objects • Inheritance - an object in a particular class gets attributes of that class Principles of Information Systems, Sixth Edition

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