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1、DavidMoneyHarrisandSarahL.Harris,DigitalDesignandComputerArchitecture,©2007byElsevierInc.ExerciseSolutionsCHAPTER1SOLUTIONSDavidMoneyHarrisandSarahL.Harris,DigitalDesignandComputerArchitecture,©2007byElsevierInc.ExerciseSolutions2CHAPTERsolutionsDavidMoneyHarrisandSarahL.Harris,DigitalDesignan
2、dComputerArchitecture,©2007byElsevierInc.ExerciseSolutionsSOLUTIONS1CHAPTER11.1(a)Biologistsstudycellsatmanylevels.Thecellsarebuiltfromor-ganellessuchasthemitochondria,ribosomes,andchloroplasts.Organellesarebuiltofmacromoleculessuchasproteins,lipids,nucleicacids,andcarbohy-drates.Thesebiochemi
3、calmacromoleculesarebuiltsimplermoleculessuchascarbonchainsandaminoacids.Whenstudyingatoneoftheselevelsofabstrac-tion,biologistsareusuallyinterestedinthelevelsaboveandbelow:whatthestructuresatthatlevelareusedtobuild,andhowthestructuresthemselvesarebuilt.(b)Thefundamentalbuildingblocksofchemist
4、ryareelectrons,protons,andneutrons(physicistsareinterestedinhowtheprotonsandneutronsarebuilt).Theseblockscombinetoformatoms.Atomscombinetoformmolecules.Forexample,whenchemistsstudymolecules,theycanabstractawaythelowerlevelsofdetailsothattheycandescribethegeneralpropertiesofamoleculesuchasbenze
5、newithouthavingtocalculatethemotionoftheindividualelec-tronsinthemolecule.1.2(a)Automobiledesignersusehierarchytoconstructacarfrommajorassembliessuchastheengine,body,andsuspension.Theassembliesarecon-structedfromsubassemblies;forexample,theenginecontainscylinders,fuelinjectors,theignitionsyste
6、m,andthedriveshaft.Modularityallowscompo-nentstobeswappedwithoutredesigningtherestofthecar;forexample,theseatscanbecloth,leather,orleatherwithabuiltinheaterdependingonthemodelofthevehicle,solongastheyallmounttothebodyinthesameplace.Regularityinvolvestheuseofinterchangeablepartsandthesharingofp
7、artsbe-tweendifferentvehicles;a65R14tirecanbeusedonmanydifferentcars.(b)Businessesusehierarchyintheirorganizationchart.Anemployeere-portstoamanager,whoreportstoageneralmanagerwhoreportstoavicepres-identwhoreportstothepresident.Modularit
