##11

Theory 6Theory 6

Unit 6Unit 6

OutputOutput

##22

Theory 6Theory 6

Categories of HardwareCategories of Hardware

• InputInput•ProcessingProcessing•StorageStorage•Output*Output*

##33

Theory 6Theory 6

Output DevicesOutput Devices

•Softcopy devicesSoftcopy devices– Monitor Monitor - Sound- Sound

•Hard copy devicesHard copy devices–PrinterPrinter

•(Scanner & others)(Scanner & others)

##44

Theory 6Theory 6

Softcopy Output Softcopy Output DevicesDevices

##55

Theory 6Theory 6

MonitorMonitor

•MonitorMonitor–ScreenScreen–Several types/sizesSeveral types/sizes

•CRTCRT•FlatFlat

##66

Theory 6Theory 6

Monitor SpecificationsMonitor Specifications

•Size (diagonal)Size (diagonal) 17”17”•Dot Pitch Dot Pitch .26.26•Type of graphics Type of graphics

–VGAVGA -SVGA-SVGA•Non-InterlacedNon-Interlaced

##77

Theory 6Theory 6

Monitor Specs (2)Monitor Specs (2)

•Refresh RateRefresh Rate•ControlsControls•Tilt-and-Swivel BaseTilt-and-Swivel Base•FiltersFilters

–GlareGlare–EM RadiationEM Radiation

##88

Theory 6Theory 6

Monitor CardMonitor Card

•Need video cardNeed video card•Function: liaisonFunction: liaison•VideoRAMVideoRAM 4 Mb4 Mb

–DRAMDRAM –VRAM–VRAM•3D3D

##99

Theory 6Theory 6

Sound CardsSound Cards

and and

AccessoriesAccessories

##1010

Theory 6Theory 6

Why Use a Sound CardWhy Use a Sound Card

•BusinessBusiness–Audible softwareAudible software

•PleasurePleasure–Record soundsRecord sounds–Games/MultimediaGames/Multimedia

##1111

Theory 6Theory 6

Parts of a Sound SystemParts of a Sound System

•Sound card insideSound card inside•SpeakersSpeakers•MicrophoneMicrophone•Software to run itSoftware to run it

##1212

Theory 6Theory 6

Connections SuppliedConnections Supplied

–Joystick (for games!)Joystick (for games!)–Line In/OutLine In/Out–Mic InMic In–Speaker OutSpeaker Out

##1313

Theory 6Theory 6

Sound Card SpecsSound Card Specs

•Sound Blaster (true vs. Sound Blaster (true vs. generic)generic)

•Full-Duplex (Internet)Full-Duplex (Internet)•Sampling Size/Rate Sampling Size/Rate

(depending on needs)(depending on needs)

##1414

Theory 6Theory 6

MIDIMIDI

•Music on the computerMusic on the computer•Types:Types:

–FM SynthesisFM Synthesis–Wavetable SynthesisWavetable Synthesis

##1515

Theory 6Theory 6

ModemModem

##1616

Theory 6Theory 6

Purpose of ModemPurpose of Modem

•Connect computers by Connect computers by phonephone

•Examples:Examples:– InternetInternet–Send & Receive FaxesSend & Receive Faxes–Exchange InformationExchange Information

##1717

Theory 6Theory 6

Types of ModemsTypes of Modems

•InternalInternal•ExternalExternal

##1818

Theory 6Theory 6

Determining SpeedDetermining Speed

• Modem Modem speeds speeds (33.6)(33.6)

• Data com-Data com-pressionpression

• Line QualityLine Quality

• Line typesLine types– Phone linePhone line– ISDNISDN– T1-T3 (etc)T1-T3 (etc)

##1919

Theory 6Theory 6

Modem ProcedureModem Procedure

•Use communication Use communication software to dialsoftware to dial

•Handshake/protocolsHandshake/protocols•ActivitiesActivities•DisconnectDisconnect

##2020

Theory 6Theory 6

PrintersPrinters

##2121

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Types of PrintersTypes of Printers

• ImpactImpact– Dot matrixDot matrix– (old: Daisy (old: Daisy

Wheel)Wheel)

• Non-impactNon-impact– Ink jetInk jet– Bubble jetBubble jet– LaserLaser

##2222

Theory 6Theory 6

Factors in PrintersFactors in Printers

•Printer UsesPrinter Uses•Printer SpeedPrinter Speed•Printer ResolutionPrinter Resolution

##2323

Theory 6Theory 6

Printer ComparisonPrinter Comparison

• ImpactImpact– CheaperCheaper– Improving Improving

resolutionresolution– SlowerSlower– Multi-part Multi-part

forms**forms**

• Non-impactNon-impact– $$$$$$– Better Better

resolutionresolution– FasterFaster

##2424

Theory 6Theory 6

Dot-Matrix PrinterDot-Matrix Printer

•SpeedSpeed•ResolutionResolution• InkInk•Carriage widthCarriage width•PaperPaper•Multipart FormsMultipart Forms

##2525

Theory 6Theory 6

Ink Jet PrinterInk Jet Printer

•SpeedSpeed•ResolutionResolution• InkInk•ColorColor•CarriageCarriage•PaperPaper

##2626

Theory 6Theory 6

Laser PrinterLaser Printer

•SpeedSpeed•ResolutionResolution• InkInk•ColorColor•PaperPaper•MultifunctionMultifunction

##2727

Theory 6Theory 6

Laser Printer (2)Laser Printer (2)

•MemoryMemory•Laser Printer LanguageLaser Printer Language

##2828

Theory 6Theory 6

Printer FontsPrinter Fonts

•TrueType Font -- scalableTrueType Font -- scalable•Bitmapped Font -- old Bitmapped Font -- old

fashionedfashioned

##2929

Theory 6Theory 6

Other Printers TypesOther Printers Types

•Solid Ink PrinterSolid Ink Printer•Thermal-Wax PrinterThermal-Wax Printer•Dye Sublimation PrinterDye Sublimation Printer

##3030

Theory 6Theory 6

ScannersScanners

##3131

Theory 6Theory 6

Purposes of ScannerPurposes of Scanner

•Scan GraphicsScan Graphics•Scan Text (OCR)Scan Text (OCR)

##3232

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How a Scanner WorksHow a Scanner Works

•Similar to copierSimilar to copier•Stores data in computerStores data in computer•File types:File types:

–Graphic (big)Graphic (big)–Text (smaller)Text (smaller)

##3333

Theory 6Theory 6

Parts of Scanner SystemParts of Scanner System

•Scanner (machine)Scanner (machine)•Card (inside computer)Card (inside computer)•Software (to run it)Software (to run it)

##3434

Theory 6Theory 6

Sizes of ScannersSizes of Scanners

•Hand-Held ScannerHand-Held Scanner•Sheet-Fed ScannerSheet-Fed Scanner•Flatbed ScannerFlatbed Scanner

##3535

Theory 6Theory 6

Types of ScannersTypes of Scanners

•Grayscale ScannerGrayscale Scanner•Color ScannerColor Scanner

##3636

Theory 6Theory 6

Ways to Scan InfoWays to Scan Info

•Scanning ModesScanning Modes–Line ArtLine Art–GrayscaleGrayscale–Color (several types)Color (several types)

##3737

Theory 6Theory 6

Scanner ResolutionScanner Resolution

•Higher is better!Higher is better!•Use resolution of the Use resolution of the

printerprinter•Generally 300 to 600 dpiGenerally 300 to 600 dpi

##3838

Theory 6Theory 6

Other Output DevicesOther Output Devices

•PlotterPlotter•Stereolithography & CNC Stereolithography & CNC

machinemachine