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Software Software

• A set of instructions that tells the computer A set of instructions that tells the computer what to dowhat to do

• Two main types of softwareTwo main types of software– System softwareSystem software– Application softwareApplication software

System SoftwareApplication Software

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System Software vs. System Software vs. Application SoftwareApplication Software

System SoftwareSystem Software• Coordinates instructions Coordinates instructions

between software & between software & hardwarehardware

• IncludesIncludes– Operating systemOperating system– Utility programsUtility programs

Application SoftwareApplication Software• Programs used to Programs used to

complete taskscomplete tasks

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Productivity SoftwareProductivity Software

– Word processing Word processing programsprograms

– Spreadsheet programsSpreadsheet programs– Presentation programsPresentation programs

– DatabaseDatabase programsprograms

– Personal information Personal information manager programsmanager programs

• Programs that enable you to perform tasks Programs that enable you to perform tasks required in home, school, and business required in home, school, and business

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Integrated Software Applications Integrated Software Applications

Integrated ApplicationsIntegrated Applications• Single program that Single program that

incorporates many incorporates many software programssoftware programs

• Complex features are not Complex features are not includedincluded

• Easier to learnEasier to learn• Good for home useGood for home use• CheaperCheaper

ExamplesExamples• Microsoft WorksMicrosoft Works• AppleWorksAppleWorks• AppleWorks for WindowsAppleWorks for Windows

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Software SuitesSoftware Suites

Software SuitesSoftware Suites• Programs bundled Programs bundled

togethertogether• Cheaper than buying Cheaper than buying

individuallyindividually• For professional useFor professional use

ExamplesExamples• Microsoft OfficeMicrosoft Office• WordPerfect OfficeWordPerfect Office• Lotus SmartsuiteLotus Smartsuite

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Software MarketsSoftware Markets

• Mass marketMass market– sell millions, low costsell millions, low cost

• Vertical market Vertical market – single industrysingle industry

• Proprietary softwareProprietary software– Custom developedCustom developed

• very expensivevery expensive

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Adobe AcrobatAdobe 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

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Graphics and Multimedia SoftwareGraphics and Multimedia Software

• Used to create and design documents, Used to create and design documents, images, illustrations, Web pages, and images, illustrations, Web pages, and moremore

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Desktop Publishing SoftwareDesktop Publishing Software

• Used to arrange text and graphics for Used to arrange text and graphics for publicationspublications

• Features includeFeatures include– Text formattingText formatting– File importingFile importing– Graphics toolsGraphics tools

• Example: Example: – Quark XpressQuark Xpress– Adobe InDesignAdobe InDesign

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Painting SoftwarePainting Software

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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

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Painting SoftwarePainting Software

•Use pointing devices Use pointing devices to “paint” objects, to “paint” objects, shapes or freehand shapes or freehand script on the screenscript on the screen•Bit-mapped graphicsBit-mapped graphics•e.g. Microsoft Painte.g. Microsoft Paint

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Digital Image Editing:Digital Image Editing:Photographic Editing by ComputerPhotographic Editing by Computer

Why Digital Imaging Software?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)

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Digital Image EditingDigital Image Editing

Start with this photo…

Combine it with other images to create this… Or this…

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Digital Image Editing:Digital Image Editing:SoftwareSoftware

Adobe PhotoshopAdobe Photoshop

Acquires images

Manipulates pixels

Layers – edited and stored independently

Used by professionals

Saves in other formats

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Digital Image Editing:Digital Image Editing:Consumer SoftwareConsumer Software

Adobe Photoshop Elements

Jasc Paint Shop

Coral PhotoPaint

Microsoft Picture It!

Apple iPhoto

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Drawing SoftwareDrawing Software

• Used to create and editUsed to create and edit– Two-dimensional drawingsTwo-dimensional drawings– Technical diagramsTechnical diagrams– AnimationsAnimations– Geometric shapesGeometric shapes

• Illustration softwareIllustration software• ExamplesExamples

– Adobe IllustratorAdobe Illustrator– Microsoft VisioMicrosoft Visio

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Drawing:Drawing:Object-Oriented GraphicsObject-Oriented Graphics

Object-Oriented Object-Oriented Software offers Software offers drawing tools drawing tools similar to painting similar to painting softwaresoftware

Pointing devices are used to create various shapes

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DrawingDrawing

Shapes in Object-Oriented Software: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

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Drawing: SoftwareDrawing: Software

• Adobe IllustratorAdobe Illustrator

• Corel DrawCorel Draw

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Painting PixelsPainting Pixels vsvs..Drawing Object ShapesDrawing Object Shapes

When When paintingpainting with with pixels:pixels:

– Use to embellishUse to embellishphotographic imagesphotographic images

– Use for simulatingUse for simulatingnatural paint medianatural paint media

– More control More control over textures, shading, over textures, shading, and fine detailand fine detail

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Painting PixelsPainting Pixels vsvs..Drawing Object ShapesDrawing Object Shapes

When When drawingdrawing object object shapes:shapes:

– shapes and lines are shapes and lines are cleaner and cleaner and smoothersmoother

– use for creating use for creating printed graphs, printed graphs, charts, and charts, and illustrations illustrations

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Graphics File FormatsGraphics File Formats

• Tiff: bit-mapped, images from scanners, widely supported

• EPS: encapsulated postscript

• Native file formatsNative file formats

• For commercial printingFor commercial printing

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Graphics File FormatsGraphics File Formats

• BMP – Windows bit-map

• PICT – Macintosh, both bit-mapped and object-oriented

Platform dependent Paint programsPlatform dependent Paint programs

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Graphics File Formats:Graphics File Formats:for the WEBfor the WEB

GIF • 256 possible

colours• Lossless

compression

JPEG • Photo-realistic• Lossy compression

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Computer-Aided Design SoftwareComputer-Aided Design Software

• Used to create 3-D Used to create 3-D automated designs, automated designs, technical drawings, technical drawings, and model and model visualizationsvisualizations

• Industrial use Industrial use includesincludes– ArchitectureArchitecture– AutomotiveAutomotive– AerospaceAerospace– Medical engineeringMedical engineering

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Video-Editing SoftwareVideo-Editing Software

• Used to edit digital Used to edit digital videosvideos

• Features includeFeatures include– Special effectsSpecial effects– TransitionsTransitions– Narration/voiceoverNarration/voiceover– OverlaysOverlays

• ExamplesExamples– Adobe PremiereAdobe Premiere– Microsoft Movie MakerMicrosoft Movie Maker

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Web Page Authoring SoftwareWeb Page Authoring Software

• Used to design Web Used to design Web pages: knowing pages: knowing HTML is not HTML is not necessarynecessary

• Features includeFeatures include– Wizards and Wizards and

templatestemplates– Reference materialsReference materials

• ExamplesExamples– Microsoft FrontPageMicrosoft FrontPage– Adobe DreamweaverAdobe Dreamweaver

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Digital Audio SoftwareDigital Audio Software

• MP3: Audio MP3: Audio compression formatcompression format

• Software allows you Software allows you to record, rip, and to record, rip, and burn filesburn files

• Also allows you to Also allows you to perform format perform format conversionconversion

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Buying SoftwareBuying Software

• Preinstalled softwarePreinstalled software• Software may be purchased throughSoftware may be purchased through

– Retail storesRetail stores– OnlineOnline

• Student discounted softwareStudent discounted software

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SharewareShareware

• Software that allows Software that allows users to run it for a users to run it for a limited time free of limited time free of chargecharge

• Then pay for itThen pay for it

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FreeFree

• Free trial from Free trial from manufacturer’s manufacturer’s websitewebsite

• Beta versions: Beta versions: Programs that are still Programs that are still under development under development

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FreeFree

• Freeware: Freeware: Copyrighted software Copyrighted software you can get for freeyou can get for free

• Alternative software: Alternative software: Evans, page 276Evans, page 276

• Open SourceOpen Source