第一章窗体顶端窗体底端Thegeneralroleofanoperatingsystemisto: 选择一个答案a. Provideasetofservicestosystemusers b. Managefilesforapplicationprograms c. puters d. Noneoftheabove Informationthatmustbesavedpriortotheprocessortransferringcontroltotheinterrupthandlerroutineincludes:选择一个答案ProcessorStatusWord(PSW)&Contentsofprocessorregisters b. Noneoftheabove c. ProcessorStatusWord(PSW) d. ProcessorStatusWord(PSW)&Locationofnextinstruction Inauniprocessorsystem,multiprogrammingincreasesprocessorefficiencyby:选择一个答案a. Increasingprocessorspeed b. Eliminatingallidleprocessorcycles c. Alloftheabove d. Takingadvantageoftimewastedbylongwaitinterrupthandling Asoneproceedsdownthememoryhierarchy(.,frominboardmemorytoofflinestorage),thefollowingcondition(s)apply: 选择一个答案a. Decreasingcapacity b. Increasingcostperbit c. esstime d. Alloftheabove Small,fastmemorylocatedbetweentheprocessorandmainmemoryiscalled选择一个答案a. Cachememory b. CD-RWmemory c. WORMmemory d. Noneoftheabove Whenanewblockofdataiswrittenintocachememory,upy:选择一个答案a. Cachesize b. Noneoftheabove c. Writepolicy d. Blocksize putersystemare: 选择一个答案Processor,Registers,MainMemory&SystemBus b. Noneoftheabove d. Processor,Registers,I/OModules&MainMemory Processor,MainMemory,I/OModules&SystemBus Thetwobasictypesofprocessorregistersare: 选择一个答案a. Noneoftheabove b. User-visibleanduser-invisibleregisters c. ControlandStatusregisters d. User-visibleandControl/Statusregisters Addressregistersmaycontain选择一个答案a. Memoryaddressesofinstructions b. Partialmemoryaddresses c. Memoryaddressesofdata d. Alloftheabove AControl/Statusregisterthatcontainstheaddressofthenextinstructiontobefetchediscalledthe: 选择一个答案a. ProgramCounter(PC) b. ProgramStatusWord(PSW) c. InstructionRegister(IR) d. Alloftheabove Thetwobasicstepsusedbytheprocessorininstructionprocessingare: 选择一个答案a. FetchandInstructioncycles b. InstructionandExecutecycles c. FetchandExecutecycles d. Noneoftheabove Afetchedinstructionisnormallyloadedintothe: 选择一个答案a. InstructionRegister(IR) b. Accumulator(AC) c
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