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计算机组成原理试题答案及解析
一、单选题
1.Whatistheprimaryfunctionofthecontrolunitinacomputer?
A.Performingarithmeticcalculations
B.Managingtheexecutionofinstructions
C.Storingdataforfutureuse
D.Controllingtheinput/outputdevices
Answer:B
Explanation:Thecontrolunitisresponsibleformanagingtheexecution
ofinstructionsinacomputer.Itcoordinatestheactivitiesofalltheother
componentsandensuresthatinstructionsareexecutedinthecorrect
sequence.
2.Whichofthefollowingisanexampleofavolatilememory?
A.Harddiskdrive
B.Solid-statedrive
C.Flashmemory
D.Random-accessmemory(RAM)
Answer:D
Explanation:Random-accessmemory(RAM)isanexampleofvolatile
memory,whichmeansthatitscontentsarelostwhenthepowertothe
computeristurnedoff.Unlikepermanentstoragedeviceslikeharddisk
drivesorsolid-statedrives,RAMisusedfortemporarydatastorageduring
programexecution.
3.Whatisthepurposeofthearithmeticlogicunit(ALU)inacomputer?
A.Storingprograminstructions
B.Executingarithmeticandlogicoperations
C.Controllingtheinput/outputdevices
D.Managingthememoryhierarchy
Answer:B
Explanation:Thearithmeticlogicunit(ALU)isresponsiblefor
performingarithmeticandlogicoperationsinacomputer.Itcanperform
operationssuchasaddition,subtraction,multiplication,division,andlogical
comparisons.
4.Whichofthefollowingisnotavalidaddressingmodeincomputer
architecture?
A.Immediateaddressing
B.Directaddressing
C.Indirectaddressing
D.Paralleladdressing
Answer:D
Explanation:Paralleladdressingisnotavalidaddressingmodein
computerarchitecture.Theotherthreeoptions(immediate,direct,and
indirectaddressing)arecommonlyusedinprogrammingtoaccessmemory
locationsoroperands.
5.W
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