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Software: Systems and Application Software

Software: Systems and Application Software. Chapter 4. Chapter 4 Outline. An Overview of Software Systems Software Application Software Programming Languages Software Issues and Trends. An Overview of Software. An Overview of Software.

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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. Chapter 4 Outline • An Overview of Software • Systems Software • Application Software • Programming Languages • Software Issues and Trends Principles of Information Systems, Sixth Edition

  3. An Overview of Software Principles of Information Systems, Sixth Edition

  4. 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

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

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

  7. Systems Software:operating systems and utilities Principles of Information Systems, Sixth Edition

  8. Operating System Functions • 1. Perform common hardware functions • 2. Provide a user interface • 3. Provide hardware independence • 4. Memory management • 5. Task management • 6. Control access to system resources • 7. File Management Principles of Information Systems, Sixth Edition

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

  10. 1. Perform Hardware Functions, 2. Provide A User Interface • Common Hardware Functions • Accept keyboard input • Store data on disks • Send data to output devices • User Interface Types: • Command-based interfaces • Graphical User Interfaces (GUIs) Principles of Information Systems, Sixth Edition

  11. 3. Hardware Independence Principles of Information Systems, Sixth Edition

  12. 4. Memory Management Principles of Information Systems, Sixth Edition

  13. 5. Task Management • 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

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

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

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

  17. WORKGROUP OPERATING SYSTEMS Netware Windows NT Server 4.0 Windows 2000 Server Unix Red Hat Linux Mac OS X Server ENTERPRISE OPERATING SYSTEMS IBM’s OS/390 HP’s MPE/iX (Multiprogramming Executive with integrated POSIX) IBM’s z/OS Linux CONSUMER APPLIANCE OPERATING SYSTEMS Windows CE.NET Mobil Linux Windows XP Embedded Handheld PC Pocket PC Palm OS Types of Operating Systems Principles of Information Systems, Sixth Edition

  18. Utility Programs Principles of Information Systems, Sixth Edition

  19. Application Software:types and functions Principles of Information Systems, Sixth Edition

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

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

  22. personal application software Principles of Information Systems, Sixth Edition

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

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

  25. TurboTax Principles of Information Systems, Sixth Edition

  26. Quicken Principles of Information Systems, Sixth Edition

  27. Word Processing Principles of Information Systems, Sixth Edition

  28. Electronic Spreadsheets Principles of Information Systems, Sixth Edition

  29. Database Management Systems Principles of Information Systems, Sixth Edition

  30. Graphics Programs Principles of Information Systems, Sixth Edition

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

  32. Software Suites Principles of Information Systems, Sixth Edition

  33. Major Components of Leading Software Suites Principles of Information Systems, Sixth Edition

  34. Workgroup Application Software • Groupware • Collaborative computing software • Lotus Notes • Group Scheduling Principles of Information Systems, Sixth Edition

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

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

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

  38. Programming Languages Principles of Information Systems, Sixth Edition

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

  40. Programming Languages Principles of Information Systems, Sixth Edition

  41. First and Second Generation Languages • First Generation Languages • Machine language • ASCII (American Standard Code for Information Interchange) • Second Generation Languages • Assembly languages • Assemblers • Symbolic language Principles of Information Systems, Sixth Edition

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

  43. 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

  44. 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

  45. 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

  46. Object-Oriented Programming Languages Principles of Information Systems, Sixth Edition

  47. Software Issues and Trends Principles of Information Systems, Sixth Edition

  48. Software Issues & Trends • Software bugs • Open source software • Software licensing • Software upgrades • Global software support • Antitrust issues for software Principles of Information Systems, Sixth Edition

  49. How to Deal with Software Bugs Principles of Information Systems, Sixth Edition

  50. Summary • Software - consists of programs that control the workings of the computer hardware • Operating system - set of computer programs that controls the computer hardware • Application - software that applies the power of the computer to solve problems and perform specific tasks • Programming languages - provide instructions to a computer to perform some processing activity Principles of Information Systems, Sixth Edition

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