1. © 2007 Prentice-Hall, Inc.1 Software A set of instructions that tells the computer what to doA set of instructions that tells the computer what to do Two main types of softwareTwo main types of software –System software –Application software System Software Application Software

2. © 2007 Prentice-Hall, Inc.2 System Software vs. Application Software System Software Coordinates instructions between software & hardwareCoordinates instructions between software & hardware IncludesIncludes –Operating system –Utility programs Application Software Programs used to complete tasks

3. © 2007 Prentice-Hall, Inc.3 Productivity Software –Word processing programs –Spreadsheet programs –Presentation programs –Database programs –Personal information manager programs Programs that enable you to perform tasks required in home, school, and business Programs that enable you to perform tasks required in home, school, and business

4. © 2007 Prentice-Hall, Inc.4 Integrated Software Applications Integrated Applications Single program that incorporates many software programsSingle program that incorporates many software programs Complex features are not includedComplex features are not included Easier to learnEasier to learn Good for home useGood for home use CheaperCheaper Examples Microsoft Works AppleWorks AppleWorks for Windows

5. © 2007 Prentice-Hall, Inc.5 Software Suites Software Suites Software Suites Programs bundled togetherPrograms bundled together Cheaper than buying individuallyCheaper than buying individually For professional useFor professional use Examples Microsoft Office WordPerfect Office Lotus Smartsuite

6. © 2007 Prentice-Hall, Inc.6 Software Markets Mass marketMass market –sell millions, low cost Vertical marketVertical market –single industry Proprietary software –Custom developed very expensive

7. © 2007 Prentice-Hall, Inc.7

8. 8 Adobe Acrobat Portable document format (PDF) Displays documents same on screen as on paper On any computer! Windows file extension is.pdf Acrobat Reader is installed on most computers

9. © 2007 Prentice-Hall, Inc.9 Graphics and Multimedia Software Used to create and design documents, images, illustrations, Web pages, and moreUsed to create and design documents, images, illustrations, Web pages, and more

10. © 2007 Prentice-Hall, Inc.10 Desktop Publishing Software Used to arrange text and graphics for publicationsUsed to arrange text and graphics for publications Features includeFeatures include –Text formatting –File importing –Graphics tools Example:Example: –Quark Xpress –Adobe InDesign

11. © 2007 Prentice-Hall, Inc.11 Painting Software GrAphicSGrAphicSGrAphicSGrAphicS Pixels:tiny dots of white, black or color arranged on the screen Bit-Mapped Graphics:pictures that are simple maps showing how the pixels should be arranged on the screen J a r g o n Resolution:the number of pixels (dots) per inch

12. © 2007 Prentice-Hall, Inc.12 Painting Software Use pointing devices to “paint” objects, shapes or freehand script on the screenUse pointing devices to “paint” objects, shapes or freehand script on the screen Bit-mapped graphicsBit-mapped graphics e.g. Microsoft Painte.g. Microsoft Paint

13. © 2007 Prentice-Hall, Inc.13 Digital Image Editing: Photographic Editing by Computer Why Digital Imaging Software?   Provides a powerful way to edit high resolution images captured by digital cameras and scanners   Offers a way to touch up pictures and make them look more professional and polished   Allows photographs to be edited and combined (think of the supermarket tabloids)

14. © 2007 Prentice-Hall, Inc.14 Digital Image Editing Start with this photo… Combine it with other images to create this… Or this…

15. © 2007 Prentice-Hall, Inc.15 Digital Image Editing: Software Adobe Photoshop   Acquires images   Manipulates pixels   Layers – edited and stored independently   Used by professionals   Saves in other formats

16. © 2007 Prentice-Hall, Inc.16 Digital Image Editing: Consumer Software   Adobe Photoshop Elements   Jasc Paint Shop   Coral PhotoPaint   Microsoft Picture It!   Apple iPhoto

17. © 2007 Prentice-Hall, Inc.17 Drawing Software Used to create and editUsed to create and edit –Two-dimensional drawings –Technical diagrams –Animations –Geometric shapes Illustration softwareIllustration software ExamplesExamples –Adobe Illustrator –Microsoft Visio

18. © 2007 Prentice-Hall, Inc.18 Drawing: Object-Oriented Graphics Object-Oriented Software offers drawing tools similar to painting software Pointing devices are used to create various shapes

19. © 2007 Prentice-Hall, Inc.19 Drawing Shapes in Object-Oriented Software: – –Are stored as formulas (not pixels) that describe how to draw that shape – –Drawings are smoother and require less memory than bit-mapped drawings – –Resolution is not fixed

20. © 2007 Prentice-Hall, Inc.20 Drawing: Software Adobe IllustratorAdobe Illustrator Corel DrawCorel Draw

21. © 2007 Prentice-Hall, Inc.21 Painting Pixels vs. Drawing Object Shapes When painting with pixels: –Use to embellish photographic images –Use for simulating natural paint media –More control over textures, shading, and fine detail

22. © 2007 Prentice-Hall, Inc.22 Painting Pixels vs. Drawing Object Shapes When drawing object shapes: –shapes and lines are cleaner and smoother –use for creating printed graphs, charts, and illustrations

23. © 2007 Prentice-Hall, Inc.23 Graphics File Formats Tiff: bit-mapped, images from scanners, widely supported EPS: encapsulated postscript Native file formatsNative file formats For commercial printingFor commercial printing

24. © 2007 Prentice-Hall, Inc.24 Graphics File Formats BMP – Windows bit-map PICT – Macintosh, both bit-mapped and object-oriented Platform dependent Paint programs

25. © 2007 Prentice-Hall, Inc.25 Graphics File Formats: for the WEB GIF 256 possible colours Lossless compression JPEG Photo-realistic Lossy compression

26. © 2007 Prentice-Hall, Inc.26

27. © 2007 Prentice-Hall, Inc.27 Computer-Aided Design Software Used to create 3-D automated designs, technical drawings, and model visualizationsUsed to create 3-D automated designs, technical drawings, and model visualizations Industrial use includesIndustrial use includes –Architecture –Automotive –Aerospace –Medical engineering

28. © 2007 Prentice-Hall, Inc.28 Video-Editing Software Used to edit digital videosUsed to edit digital videos Features includeFeatures include –Special effects –Transitions –Narration/voiceover –Overlays ExamplesExamples –Adobe Premiere –Microsoft Movie Maker

29. © 2007 Prentice-Hall, Inc.29 Web Page Authoring Software Used to design Web pages: knowing HTML is not necessaryUsed to design Web pages: knowing HTML is not necessary Features includeFeatures include –Wizards and templates –Reference materials ExamplesExamples –Microsoft FrontPage –Adobe Dreamweaver

30. © 2007 Prentice-Hall, Inc.30 Digital Audio Software MP3: Audio compression formatMP3: Audio compression format Software allows you to record, rip, and burn filesSoftware allows you to record, rip, and burn files Also allows you to perform format conversionAlso allows you to perform format conversion

31. © 2007 Prentice-Hall, Inc.31 Buying Software Preinstalled softwarePreinstalled software Software may be purchased throughSoftware may be purchased through –Retail stores –Online Student discounted softwareStudent discounted software

32. © 2007 Prentice-Hall, Inc.32 Shareware Software that allows users to run it for a limited time free of chargeSoftware that allows users to run it for a limited time free of charge Then pay for itThen pay for it

33. © 2007 Prentice-Hall, Inc.33 Free Free trial from manufacturer’s websiteFree trial from manufacturer’s website Beta versions: Programs that are still under developmentBeta versions: Programs that are still under development

34. © 2007 Prentice-Hall, Inc.34 Free Freeware: Copyrighted software you can get for freeFreeware: Copyrighted software you can get for free Alternative software: Evans, page 276Alternative software: Evans, page 276 Open SourceOpen Source