Unit 02 Digital Devices Answer Key

Unit 02 Digital Devices 1. Whichofthefollowingisbasedoncomputertechnology? a. t ablets b. e bookreaders c. g ameconsoles d. all of the above ANSWER: d 2. A(n) __________ is a multipurpose device that accepts input, processes data, stores data, and produces output, all accordingtoaseriesofstoredinstructions. ANSWER: computer 3. ______isdatathatisenteredintoacomputer.______istheresultproducedbyacomputer. a. O  utput,Input b. I nput,Output c. I nformation,Binarydata d. N  oneoftheabove ANSWER: b 4. Keyboardsandprintersaretwoexamplesof_________devices. ANSWER: peripheral 5. Peripheraldevicesaregenerallyattachedtoacomputerwithcablesorawirelessconnection. a. True b. False ANSWER: True 6. Computers process __________ by performing calculations, modifying documents and pictures, drawing graphs, andsortinglistsofwordsornumbers. ANSWER: data 7. TheCPUofmostmoderncomputersisamicroprocessor. a. True b. False ANSWER: True 8. Processingishandledbythecomputer’scentralprocessingunit(CPU). a. True b. False ANSWER: True Unit 02 Digital Devices 9. Mostcomputershavetemporaryholdingareascalled__________. a. o utput b. m  icroprocessor c. CPU d. m  emory ANSWER: d 10. Instructionsthattellacomputerhowtocarryoutprocessingtasksarereferredtoasacomputer_______. ANSWER: program,application 11. Thecollectionofprogramsonacomputerisreferredtoas_______________. ANSWER: software 12. Theterm'storedprogram'meansthataseriesofinstructionsforacomputingtaskcanbeloadedintoacomputer’s memory. a. True b. False ANSWER: True 13. Theabilitytoswitchbetweenprogramsmakescomputersmultipurposedevices. a. True b. False ANSWER: True 14. Computersrunthreemaintypesofsoftware:applicationsoftware,developmenttools,and_______software. ANSWER: system 15. Systemsoftwareisasetofcomputerprogramsthathelpsapersoncarryoutatask. a. True b. False ANSWER: False 16. Softwareapplicationsaresometimesreferredtoas_______,especiallyinthecontextofhandhelddevices. ANSWER: apps,app 17. Anexampleofsystemsoftwareisacomputeroperatingsystem. a. True b. False ANSWER: True Unit 02 Digital Devices 18. The primary purpose of ________ software is to help the computer system monitor itself in order to function efficiently. a. s ystem b. a pplication c. i nput d. m  emory ANSWER: a 19. An integrated circuit is a set of microscopic electronic circuits etched onto a thin slice of ___________ material suchassilicon. ANSWER: semiconducting,semiconductor 20. Semiconductorsaresubstanceswithpropertiesbetweenthoseofaconductorandaninsulator. a. True b. False ANSWER: True 21. AnDIPisasquarechippackage,typicallyusedformicroprocessors,withpinsarrangedinconcentricsquares. a. True b. False ANSWER: False 22. LGAshavetworowsofpinsthatconnectthechiptoacircuitboard. a. True b. False ANSWER: False 23. Theelectroniccomponentsofmostdigitaldevicesaremountedonacircuitboardcalleda______________. a. s ystemboard b. m  otherboard c. m  ainboard d. a lloftheabove ANSWER: d 24. The________housesallessentialchipsandprovidesconnectingcircuitrybetweenthem. ANSWER: systemboard,motherboard,mainboard 25. Inthecomputerindustry,theterm_________referstothesizeanddimensionsofadeviceorcomponents. ANSWER: formfactor Unit 02 Digital Devices 26. Theterm________referstothepartofadigitaldevicethatholdsthesystemboard. a. f ormfactor b. CPU c. s ystemboard d. s ystemunit ANSWER: d 27. Componentsystemsarecurrentlythemostpopularformfactorfordigitaldevices. a. True b. False ANSWER: False 28. __________deviceshaveakeyboardasthebaseandascreenonthehingedcover. ANSWER: Clamshell,notebook,laptop 29. The__________formfactorfeaturesatouchscreenthatcoversmostofthedevice’ssurface. ANSWER: slate,tablet 30. Manytouchscreenshavean_________coatingdesignedtorepeltheoilsdepositedbyfingertips. ANSWER: oleophobic 31. Batterylifespanisthetimeyourdeviceoperatesbeforeitmustberecharged. a. True b. False ANSWER: False 32. B  atterylifeisthetimeyourdeviceoperatesbeforeitmustberecharged. a. True b. False ANSWER: True 33. Themostpopularbatterytypeusedintoday'selectronicdevicesis__________. a. nickel-cadmium b. a lkaline c. l ithiumion d. n oneoftheabove ANSWER: c Unit 02 Digital Devices 34. Atitstimeofconstruction,oneofthefastestcomputersintheworldisreferredtoasa(n)_________________. a. m  ainframe b. s upercomputer c. m  inicomputer d. a lloftheabove ANSWER: b 35. A large, closet-sized computer capable of simultaneously processing data for hundreds or thousands of users is mostlikelya__________computer. ANSWER: mainframe 36. Acomputerthatisprimarilyusedtoservedatatoothercomputersonanetworkiscalleda(n)______________. ANSWER: server 37. Originallycalledmicrocomputers,_________aredesignedtomeetthecomputingneedsofindividuals. a. m  ainframes b. p ersonalcomputers c. m  icrocomputers d. servers ANSWER: b 38. Which of the following is an example of a computer that is a small, lightweight personal computer that is designed likeaclamshell? a. D  esktopcomputer b. L  aptopcomputer c. S  erver d. T  ablet ANSWER: b 39. A ___________ is a special category of laptop, designed to be connected to the Internet for most routine computingactivities. ANSWER: Chromebook 40. A desktop is a portable computing device featuring a touch-sensitive screen that can be used for input as well as foroutput. a. True b. False ANSWER: False Unit 02 Digital Devices 41. Aslatetabletconfigurationisbasicallyascreeninanarrowframethatlacksaphysicalkeyboard. a. True b. False ANSWER: True 42. _____________ are mobile devices that have features similar to tablet computers, but also provide telecommunicationscapabilitiesovercellphonenetworks. ANSWER: Smartphones,Smartphone 43. SmartphonesevolvedfrombasiccellphonesandPDAs. a. True b. False ANSWER: True 44. Theoperatingsystemsforsmartphonesareradicallydifferenttothoseusedfortabletcomputers. a. True b. False ANSWER: False 45. W  hichofthefollowingisanexampleofanoperatingsystemthatisusedbysmartphones? a. i OS b. A  ndroid c. W  indowsRT d. A  lloftheabove ANSWER: d 46. Smartwatches,smartglasses,andfitnesstrackerscanbeclassifiedas_______computers. ANSWER: wearable 47. Digital devices such as NOOK and the Kindle, that are designed for displaying the content of digital publications, suchasbooks,magazines,andnewspapersarereferredtoas__________. ANSWER: ebookreaders 48. Smartwatches are multifunction devices that can include a camera, thermometer, compass, calculator, cell phone, GPS,mediaplayer,andfitnesstracker. a. True b. False ANSWER: True 49. Headmounteddigitaldevicesdesignedtolooklikeeyeglassesarecalled__________. ANSWER: smartglasses Unit 02 Digital Devices 50. Modern refrigerators, washing machines, and other appliances are controlled by integrated circuits called ____________thatcombinesensorswithprocessingcircuitry. a. microcontrollers b. m  icrocomputers c. servers d. m  icrodevices ANSWER: a 51. To monitor activity throughout the day, you can wear a __________. These devices, worn on the wrist or clipped toapocket,monitoryourstepsandheartrate. ANSWER: fitnesstracker 52. What type of computer should you consider purchasing if you want a system that is ideal for dedicated gamers, seriousdesigners,desktoppublishers,andvideoeditors? a. L  aptop b. D  esktop c. T  ablet d. S  martphone ANSWER: b 53. What type of computer should you consider purchasing if you want a portable system that is great for consuming content suchasebooks,music,andvideosbutnotsogreatforcreatingcontentormultitasking? a. T  ablet b. S  martphone c. D  esktop d. L  aptop ANSWER: a 54. What type of computer should you consider purchasing if you want a portable system that is good for students and onthegoprofessionalswhowanttocreatecontentandbeproductive,inadditiontoconsumingcontent? a. D  esktop b. L  aptop c. T  ablet d. S  martphone ANSWER: b 55. Computersthatoperateinessentiallythesamewayandusethesamesoftwarearesaidtobe______. ANSWER: compatible Unit 02 Digital Devices 56. Computerswiththesameoperatingsystemscantypicallyusethesamesoftwareandperipheraldevices. a. True b. False ANSWER: True 57. A(n)____________isanintegratedcircuitdesignedtoprocessinstructions. ANSWER: microprocessor 58. IntelCorporationistheworld’slargestchipmakerandsuppliesasizeablepercentageofthemicroprocessorsthat powerdesktopsandlaptops. a. True b. False ANSWER: True 59. In1971,Intelintroducedtheworld’sfirstmicroprocessorcalledthe_________. ANSWER: 4004 60. The__________chipfamilysetthestandardforprocessorsusedintoday’sdesktopandlaptopcomputers,as wellasservers. ANSWER: 8086,x86. 61. ModernprocessorsfollowIntel’soriginalnumberingsequence. a. True b. False ANSWER: False 62. TheInteli7microprocessorisx86compatible. a. True b. False ANSWER: True 63. AthlonandAseriesprocessorsmanufacturedbyAMDareNOTx86compatible. a. True b. False ANSWER: False 64. Theprocessorsthatarefoundinjustaboutalldesktopandlaptopcomputersare_____compatible. ANSWER: x86 65. Processorsbasedon____technologydominatetabletcomputersandsmartphones. ANSWER: ARM Unit 02 Digital Devices 66. ARMbasedprocessorsarenotespeciallyenergyefficient. a. True b. False ANSWER: False 67. ____processorsarefoundinMicrosoft’sSurfacetablets,Apple’siPadsandiPhones,andSamsung’slineupof Galaxyphones. ANSWER: ARM 68. Microprocessorsarehardwiredtoperformalimited,preprogrammedsetofactivitiescalleda(n)___________. ANSWER: instructionset 69. x86processorsuseadifferentinstructionsetthanARMprocessors. a. True b. False ANSWER: True 70. A(n) _____________contains a collection of instructions for actions that the circuitry in a microprocessor can perform. a. ALU b. A  RM c. m  icroprocessor d. i nstructionset ANSWER: d 71. Microprocessorscan’tdirectlyunderstandprogramminglanguages,soprogramshavetobeconvertedinto _____________thatcorrespondstothemicroprocessor’sinstructionset. a. a pplications b. m  achinelanguage c. microprocessors d. A  RM ANSWER: b 72. The ____________ is the part of the microprocessor that performs arithmetic operations, such as addition and subtraction. ANSWER: ALU,arithmeticlogicunit 73. TheALUuses__________toholddatathatisbeingprocessed. ANSWER: registers Unit 02 Digital Devices 74. Inamicroprocessor,the__________fetchesinstructions. a. ALU b. r egister c. CPU d. c ontrolunit ANSWER: d 75. Theterminstructioncyclereferstotheprocessinwhichacomputerexecutesasingleinstruction. a. True b. False ANSWER: True 76. Duringaninstructioncycle,allpartsoftheinstructionareperformedbythemicroprocessor'scontrolunit. a. True b. False ANSWER: False 77. Whenaprogrambegins,thememoryaddressofthefirstinstructionisplacedinapartofthemicroprocessor’s controlunitcalleda(n)__________. ANSWER: instructionpointer 78. Inaprocessor,thetimingdevicethatsetsthepaceforexecutinginstructionsiscalledthe___________. ANSWER: microprocessorclock 79. Mostcomputeradsspecifythespeedofamicroprocessoringigahertz. a. True b. False ANSWER: True 80. Amicroprocessorthatcontainscircuitryformorethanoneprocessingunitiscalleda________processor. ANSWER: multicore,multicore,multicore 81. Processorsthatexecuteoneinstructionatatimeareconsideredtobe________processors a. s erial b. p arallel c. p ipeline d. n oneoftheabove ANSWER: a Unit 02 Digital Devices 82. Amulticoreprocessorthatexecutesmorethanoneinstructionatatimeisreferredtoasaparallelprocessor. a. True b. False ANSWER: True 83. A(n) ____________ is special high-speed memory that allows a microprocessor to access data more rapidly than frommemorylocatedelsewhereonthesystemboard. ANSWER: CPUcache,cache 84. _________isatemporaryholdingareafordataandprograms. a. C  ISC b. R  AM c. R  OM d. R  ISC ANSWER: b 85. RAMisvolatile. a. True b. False ANSWER: True 86. If a program exceeds its allocated space, the operating system uses an area of the hard disk or other storage device as_______memory. ANSWER: virtual 87. ROMistemporaryandvolatile,RAMismorepermanentandnonvolatile. a. True b. False ANSWER: False 88. _______isthetermusedforthecomponentsofadigitaldevicedesignedtoholddatapermanently. ANSWER: Storage,Permanentstorage 89. Whichofthefollowingisanimportantconsiderationwhenevaluatingstorageoptionsfordigitaldevices? a. D  urability b. D  ependability c. C  apacity d. A  lloftheabove ANSWER: d Unit 02 Digital Devices 90. Aharddiskdriveisanexampleofmagneticstorage. a. True b. False ANSWER: True 91. Whichofthefollowingisanexampleofwhyharddiskdrivesaresopopular? a. T  heyarenotsusceptibletoaheadcrash b. R  elativelylowcostforlotsofstorage c. t heyarevolatile d. A  lloftheabove ANSWER: b 92. _________istheamountofdataastoragedevicecanmovepersecondfromthestoragemediumtoRAM. a. Accesstime b. Datatransferrate c. B  itrate d. RPM ANSWER: b 93. _______storagerepresentsdataasmicroscopiclightanddarkspotsonadiscsurface. ANSWER: Optical 94. Which optical storage technology stores data permanently on a disc, which cannot be subsequently added to or changed. a. R  eadonly b. R  ecordable c. R  ewritable d. N  oneoftheabove ANSWER: a 95. Solidstatestoragestoresdatainerasable,rewritablecircuitry,ratherthanonspinningdisksorstreamingtape. a. True b. False ANSWER: True 96. Memorycardsaretypicallyvolatile. a. True b. False ANSWER: False Unit 02 Digital Devices 97. Asolidstatedrivecanbeusedasasubstituteforaharddiskdrive. a. True b. False ANSWER: True 98. RemotestoragethatisavailableasanInternetserviceiscalled______storage. ANSWER: cloud 99. Allremotestorageisconsideredtobecloudstorage. a. True b. False ANSWER: False 100. WhichofthefollowingisNOTdrawbackofusingcloudstorage? a. I ncreasedsecurityrisk. b. H  ighpriceofstorage. c. P  ossibleserviceoutage. d. D  iscontinuationofservice. ANSWER: b 101. A(n)___________isacopyofoneormorefilesthatismadeincasetheoriginalsbecomedamaged. ANSWER: backup,databackup 102. A(n) _____________ contains parts of the operating system necessary to boot your computer and diagnose systemproblemsafteraharddrivefailureorsoftwaremalfunction. ANSWER: recoverydrive,systemrepairdisc 103. A(n)___________isabitforbitcopyofthedatafromallsectorsofaharddisk. ANSWER: diskimage 104. The term __________ device is used for devices such as printers, display devices, storage devices, mice, and headsetsthatareconnectedtothesystemunitofacomputer. ANSWER: peripheral 105. Themaincircuitsonthesystemboardthatcarrydataarecalledthe_________. a. R  OM b. R  AM c. e xpansionbus d. d atabus ANSWER: d Unit 02 Digital Devices 106. Portsthatexpandtheoptionsforinput,output,andstorage,theyarecommonlycalled____________ports. ANSWER: expansion 107. ThepartofthedatabusthatrunsbetweenthemicroprocessorandRAMiscalledthe_______bus. a. l ocal b. e xpansion c. U  SB d. n etwork ANSWER: a 108. WhichofthefollowingisNOTanexampleofanexpansionport? a. T  hunderbolt b. U  SB3.0 c. HDMI d. R  AM ANSWER: d 109. Whenaperipheraldeviceisconnectedordisconnectedwhilethehostdeviceisoperating,itiscalledhotplugging. a. True b. False ANSWER: True 110. AUSB_____isaninexpensivedevicethatturnsoneUSBportintomultipleports. ANSWER: hub 111. Acommonwirelesstechnologyforconnectingperipheralsis___________. ANSWER: Bluetooth 112. A(n)__________issoftwarethathelpsaperipheraldeviceestablishcommunicationwithitshostdevice. a. d evicehub b. d evicedriver c. h otplug d. d atabus ANSWER: b 113. Inadisplaydevice,responserateisthetimeittakesforonepixeltochangefromblacktowhitethenbacktoblack. a. True b. False ANSWER: True Unit 02 Digital Devices 114. Inadisplaydevice,__________isthedistanceinmillimetersbetweenlikecoloredLEDs. ANSWER: dotpitch,dp 115. TheadvantagesofLCDscreensincludedisplayclarity,lowradiationemission,portability,andcompactness. a. d isplayclarity b. l owradiationemission c. portability d. alloftheabove ANSWER: d 116. The number of horizontal and vertical pixels that a device displays on the screen is referred to as screen ________. ANSWER: resolution 117. A graphics card contains a(n)__________ and special video memory, which stores screen images as they are processedbutbeforetheyaredisplayed. ANSWER: graphicsprocessingunit,GPU 118. A(n) ____________ printer has a nozzle-like print head that sprays ink onto paper to form characters and graphics. ANSWER: inkjet,inkjet,inkjet 119. Alaserprinterhasanozzlelikeprintheadthatspraysinkontopapertoformcharactersandgraphics. a. True b. False ANSWER: False