软件工程专业英语chapter1Mobile Computers.pptx

软件工程专业英语chapter1Mobile Computers.pptx

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,TaiyuanUniversityofTechnology,软件我工们程毕专业业啦英语,计算机科学与技术学院软件学院,SOFTWAREE其N实是G答I辩N的E标E题R地方INGESSENTIALS,CourseOutline,CourseArrangement:

32HoursLectures2CreditsTotalScore40%Assignment&Attendences&inclassquiz+60%FinalExaminationLecturesRange:

Chapter1Chapter8CourseRequirements:

readingandcomprehensionInClassQuiz:

Fourtimes,andOncetwoweeks.,Chapter1Chapter2,Chapter3Chapter4Chapter5Chapter6Chapter7Chapter8,MobileComputersSoftwareReengineeringMainMemoryDatabaseNetworkingAndSecurityArtificialIntelligenceBigDataMobileInternetInternetofThings,6/23/2019,太原理工大学软件学院,3,6/23/2019,太原理工大学.计算机科学与技术学院.软件学院,4,ANOVERVIEWOFMOBILECOMPUTERSSMARTPHONESANDROIDOPERATINGSYSTEMTERMS,CHPTER1,MOBILECOMPUTERS,COMPETENCIES,Afterreadingthischapter,youshouldbeableto:

Describethetypesandthefeaturesofmobilecomputers.Describethedifferenttypesofmobileoperatingsystems.DistinguishbetweenmobileoperatingsystemsandmobileApps.Explainthetwotypesofsmartphones.DescribeARMarchitectureandAndroidarchitecture.IdentifythefourlayersofAndroidarchitecture.DiscussAndroidAppStore:

GooglePlay.,6/23/2019,太原理工大学.软件学院,5,1.2SMARTPHONES,6/23/2019,6,太原理工大学.计算机科学与技术学院.软件学院,Themostdramaticchangeincomputertechnologyin,thepastfiveyearshasbeenthewidespreaduseofmobilecomputers,suchastabletsandsmartphones.Manyexpertspredictthattheapplicationofthesemobilecomputershasjustbegun.Mobilecomputersareexpectedtogreatlyaffectthewaywecommunicateandusecomputertechnology.,1.2SM,6/23/2019,7,太原理工大学.计算机科学与技术学院.软件学院,ARTPHONES,Inthischapter,wepresentanoverviewofmobile,computers,includingtheirtypes,features,CPU,architectures,operatingsystems,andApps.Itisessentialtounderstandthesebasicconcepts.,Also,wedescribesmartphones,themostpopularmobilecomputingdevicesindetail,likeiPhoneandAndroidphones.Lastly,wediscussthemostwidelyusedmobileoperatingsystem,AndroidOS,includingitsorigin,architecture,andAppstore.,1.1ANOVERVIEWOFMOBILECOMPUTERS,6/23/2019,8,太原理工大学.计算机科学与技术学院.软件学院,1.1ANOVERVIEWOFMOBILECOMPUTERS,6/23/2019,9,太原理工大学.软件学院,Amobilecomputer,alsoknownasamobilecomputingdevice,isdescribedasasmall,lightweight,portablecomputercontainingwirelessInternetaccess.AmobiledevicewithoutInternetaccessisnotgenerallyreferredtoasamobilecomputingdevice.,1.1.1TypesofMobileComputers,Thereareseveraltypesofmobilecomputingdevices:

NotebookcomputersTabletcomputersHand-heldcomputersSmartphonesPhabletsApplication-specificmobilecomputersDevicesthatareportable,butusedwhilestationary,suchasnotebooks,aresometimesremovedfromthegroupofmobilecomputingdevicesastheycannotbeusedwhileinmotion.,6/23/2019,10,太原理工大学.软件学院,Notebookcomputers,6/23/2019,11,太原理工大学.软件学院,Alsocalledlaptopsorshorteningnotebooks,aresmallpersonalcomputersdesignedforportability.Usually,allofthehardwareandinterfacesneededtooperateonenotebook,suchasthegraphicscard,audiodevicesandUSBports,arebuiltintoasingleunit.Intheinterestsofsavingpower,weightandspace,alaptopgraphicscardisinmanycasesintegratedintotheCPUorchipsetandusesystemRAM,resultinginreducedgraphicsperformancewhencomparedtoanequivalentdesktopcomputer.,Atablet,6/23/2019,12,太原理工大学.软件学院,AtypeofportablePCsthatde-emphasizestheuseoftraditionalinputdevices，suchasamouseorakeyboard,byusingatouchscreendisplay,whichcanbecontrolledbyeitherastyluspenorfingers.Sometabletsmayuseahybridorconvertibledesign,offeringakeyboardthatcaneitherberemovedasanattachment,orascreenthatcanberotatedandfoldeddirectlyovertopofthekeyboard.,Handheldcomputers,6/23/2019,13,太原理工大学.软件学院,Alsoknownaspalmcomputers,aredesignedasverysmalldevicestofitintothepalmofonehandTypicallycombinepeninput,writingrecognition,personalorganizationaltools,andcommunicationscapabilities.Personaldigitalassistants（PDAs）arethemostwidelyusedhandheldcomputers.PDAsruntheMicrosoftWindowsMobileoperatingsystemandanalternativeoperatingsystemlikeLinux.,AsmartphoneIsamobilephonewithanadvancedmobileoperatingsystemwhichcombinesfeaturesofapersonalcomputeroperatingsystemwithotherfeaturesusefulformobileandhandhelduses.Ittypicallycombinesthefeaturesofacellphonewiththoseofotherpopularmobiledevices,suchasapersonaldigitalassistant（PDA）,amediaplayerandaGPSnavigationunit.,6/23/2019,14,太原理工大学.软件学院,Aphablet,6/23/2019,15,太原理工大学.软件学院,Isatypeofmobiledevicesdesignedtocombineorstraddletheformofasmartphoneandatablet.Aphablethasascreenthatmeasuresdiagonally5.36.99inches（135178mm）,asizethatcomplementsscreen-intensiveactivitiessuchasmobilewebbrowsingandmultimediaviewing.In2014,notingthatphabletshadovertakenlaptopsanddesktopsinglobalsales,TheNewYorkTimessaidPhabletscouldbecomethedominantcomputingdeviceofthefuturethemostpopularkindofphoneonthemarket,andperhapstheonlycomputermanyofusneed.,Application-specificmobilecomputers,6/23/2019,16,太原理工大学.软件学院,Portabledataterminals（PDTs）:

Electronicdevicesareusedtoenterorretrievedataviawirelesstransmission（WLANorWWAN）.Theycanalsoserveasbarcodereadersinlargestores,orbeusedinwarehouses,hospitals,orinthefieldtoaccessadatabasefromaremotelocation.Wearablecomputers,alsoknownasbody-bornecomputersorwearables,areminiatureelectronicdevicesthatarewornbythebearerunder,withorontopofclothing.ModernexamplewillbetheNikesystemwhichallowsyoutotrackyourtime,distance,paceandcaloriesviaasensorintheshoe.CarputersorcarPCsaretabletcomputersdesignedormodifiedspecificallytobeinstalledandrunincars,whichincludeusefultechnologieslikeGPSandBluetooth.,1.1.2FeaturesofMobileComputers,6/23/2019,17,太原理工大学.计算机软件学院,Portability:

Anymobiledeviceshouldfunctionandoperateconsistentlywhileonthemove,regardlessofproximitytoapowersourceorphysicalInternetconnectionSmallSize:

Atypicalmobiledevicewillfitintheaverageadultshandorpocket.Somemobiledevicesmayfoldorslidefromacompact,portablemodetoaslightlylargersize,revealingbuilt-inkeyboardsorlargerscreens.WirelessCommunication:

Typicallycapableofcommunicationwithothersimilardevices,withstationarycomputersandsystems,withnetworksandportablephonesTouchInterface:

Touchinputallowstheusertonavigateeasilyandtypewithavirtualkeyboardonthescreen.,1.1.3CPUArchitecturesofMobileComputers,TwomajorCPUarchitecturesthatdominatethemobilecomputersmarketareARMHoldingsARMarchitectureandIntelsx86architecture.,ASamsung1GHzARMCORTEX-A8processorandanIntelx86processor,6/23/2019,18,太原理工大学.计算机软件学院,1.Intelsx86architecture,6/23/2019,19,太原理工大学.计算机软件学院,Includingx86-64,haspoweredtheIBManditscompatiblePCssince1981andApplesMacintoshcomputerssince2006.TheCPUarchitecturehasbeenincorporatedintotabletPCsovertheyearsandgenerallyoffersgreaterperformancealongwiththeabilitytorunfullversionsofMicrosoftWindows,includingWindowsdesktopandenterpriseapplications.IntelannouncedplanstoenterthetabletmarketwithitsAtomin2010.InOctober2013,IntelsfoundryoperationannouncedplanstobuildFPGA-basedquadcoresforARMandx86processors.,2.ARMarchitecture,6/23/2019,20,太原理工大学.计算机软件学院,ARMhasbeenchosenastheCPUarchitecturebymanufacturersofsmartphones（95%ARM）,PDAs,digitalcameras（80%ARM）,set-topboxes,DSLrouters,smarttelevisions（70%ARM）andtabletcomputers（95%ARM）.Thisdominancebeganwiththereleaseofthemobile-focusedandcomparativelypower-efficient32-bitARM610processororiginallydesignedfortheAppleNewton（ApplesPDA）andAcornA4（alaptopcomputercalledA4isintroducedbyAcorn）in1993.ThechipwasadoptedbyPsion,PalmandNokiaforPDAsandlatersmartphones,cameraphones,cameras,etc.,1.1.4MobileOperatingSystems,6/23/2019,21,太原理工大学.计算机软件学院,Isanoperatingsystem（OS）forsmartphones,tablets,PDAs,orothermobiledevices.Whilecomputerssuchasthetypicallaptoparemobile,theoperatingsystemsusuallyusedonthemarenotconsideredmobileonesastheywereoriginallydesignedforbiggerstationarydesktopcomputersthathistoricallydidnothaveorneedspecificmobilefeatures.Thisdistinctionisgettingblurredinsomeneweroperatingsystemsthatarehybridsmadeforbothuses.,Mobileoperatingsystemscombinefeaturesofapersonalcomputeroperatingsystemwithotherfeaturesusefulformobileorhandhelduse,usuallyincludingtouchscreen,cellular,Bluetooth,Wi-Fi,GPSmobilenavigation,camera,videocamera,speechrecognition,voicerecorder,musicplayer,nearfieldcommunicationandinfraredblaster,mostofwhichareconsideredessentialinmodernmobilesystems.ThepopularmobileOSincluse:

AndroidOS:

iOSWindowsPhoneBlackBerry,6/23/2019,22,太原理工大学.计算机软件学院,1.AndroidOS,6/23/2019,23,太原理工大学.计算机软件学院,IsaOScurrentlydevelopedbyGoogle,andbasedontheLinuxkernelanddesignedprimarilyfortouchscreenmobiledevicessuchassmartphonesandtablets.TherearemanyworldwidecompaniesthatuseAndroidOSfortheirmobiledevices,forexample,SamsungsGalaxyproductsinSouthKorea,HuaweiandXiaomisinChinaandmanymoreotherbrandsintheworld.AndroidOSisthemostpopularoperatingsystemformobilecomputers,andsharesmorethan50%worldwidemarket,whileAndroidiscurrentlynotpopularforregularPCs.Androidisfreeandopen-sourcesoftware,andalargeamountofproprietarysoftwareisbundledwithit,suchasGooglePlayStore,GoogleSearch,GooglePlayServices,GoogleMusic,andsoon.,2.iOS,6/23/2019,24,太原理工大学.计算机软件学院,IsfromAppleInc.andhasthesecondlargestinstalledbaseworldwideonsmartphones,butthelargestprofits,duetoag