计算机组成原理BB平台测试题答案Word下载.docx

计算机组成原理BB平台测试题答案Word下载.docx

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In8-bitsmicro-computersystem,multiplicationanddivisionarerealizedby（D）.C

A.dedicatedchipsB.firmwareC.softwareD.hardware

问题7

Softwareisequivalenttohardwareinlogicfunction.A

问题8

Resourcesmanagementofcomputersoftwareandhardwareisthedutyof（D）.

A.OperatingSystemB.LanguageprocessprogramA

C.DatabaseManagementSystemD.Applicationprogram

问题9

Thereasonofbinaryrepresentationforinformationinacomputerisitcaneasilyprocesstheinformation.B

问题10

ThebasicfeatureofVonNeumanncomputeris（A）.

A.accessmemorybyaddressandexecuteinstructioninsequence

B.accessmemorybycontent

C.MultipleInstructionStreamSingleDataStream（MISD）

D.operatestack

问题11

Dataandinstructionsarestoredin（C）whentheprogramisrunning.A

A.memoryB.diskC.datapathD.operatingsystem

问题12

Theoperatingsystemisappearedin（C）.

A.the4thgenerationcomputersB.the2ndgenerationcomputers

C.the3rdgenerationcomputersD.the1stgenerationcomputers

问题13

Thesocalled“PC”belongsto（C）.

A.MediumcomputersB.MainframesC.Micro-computersD.Mini-computers

问题14

Computerhardwareconsistsofcalculator,memory,controllerandI/OA

问题15

（C）isnotbelongedtosystemprogram.

A.DatabasesystemB.OperatingsystemC.CompilerprogramD.theaboveall

问题16

Thevastmajorityofcomputersystemsusedtodayareconstructedon（B）computermodel.

A.intelligentB.VonNeumannC.parallelD.realtimeprocessing

问题17

Theuseof（C）signifiedthedevelopmentofmicro-computer.

A.softwareB.diskC.MicroprocessorD.OS

问题18

Theuseofmicroprocessorsignifiedthedevelopmentof

问题19

Thereasonwhythebinarysystemofrepresentationiswidelyadoptedincomputeris（B）.

A.computingspeedfastB.convenienceforinformationprocessing

C.savingcomponentsD.therestrictionofthenatureofphysicaldevices

问题20

Afullcomputershouldconsistsof（D）.

A.hostandPeripheralB.calculator,memoryandcontroller

C.hostandprogramD.hardwareandsoftwaresystem

问题21

HostconsistsofCPUandI/OdevicesA.

问题22

InacomputerbasedonthevonNeumannmodel,instructionsanddataareallstoredinmemory,andCPUdistinguishthemaccordingtheiraddress.B

问题23

Systemsoftwareispurchased,andappliedsoftwareiseditbyourselvesB.

问题24

WhichofthefollowinglanguagescanbeimplementeddirectlyandeditedbyMnemonic（助记符）:

①Assemblylanguage;

②machinelanguage;

③High-levellanguage;

④Operatingsystemprimitives;

⑤RegularlanguageB

A.①,④B.②，①C.②，⑤D.①，③

问题25

Incomputerterminology,CPUconsistsofcalculatorandcontroller.A

选择题答案：

第二章

If[X]2’scomplement=，then[X]sign-magnitude=（D）

A.B.C.D.

（B）isusedtorepresentaddressincomputer.

A.1’scomplementB.unsignednumberC.2’scomplementD.signmagnitude

NumbersX1,X2areinteger,and【X1】2’scompl=，【X2】2’scompl=00011011,thentheirtruevalueofdecimalformare____-101____and____27____。

+++=

问题4

Thesign-magnituderepresentationof‘0’isunique.B

Plustwo2’scomplementnumbersthatadopt1signbit,overflowmustoccurwhen（CD）.

A.carrysignalisgeneratedfromthesignbit

B.XORoperationforcarrysignalgeneratedfromthesignbitandcarrysignalgeneratedfromthehighestnumericalbitis‘0’

C.XORoperationforcarrysignalgeneratedfromthesignbitandcarrysignalgeneratedfromthehighestnumericalbitis‘1’

D.XORoperationforcarrysignalgeneratedfromthesignbitandcarrysignalgeneratedfromthehighestnumericalbitis‘1’

Therangeofrepresentationfora1’scomplementnumbersystemof64bits（includingthesignbit）is（A）.

A.0≤|N|≤263–1B.0≤|N|≤262–1C.0≤|N|≤264–1D.0≤|N|≤263

Fixedpointnumbercanbeclassifiedintopuredecimal（纯小数）andpureinteger（纯整数）.

A.对B.错A

Infixedpointcalculator,whetheradopteddoublesignbitorsinglesignbit,itmusthas（）,whichisoftenimplementedby（）.C

A.Decodingcircuit,NANDgateB.encodingcircuit,NORgate

C.overflowdetectioncircuit,XORgateD.shiftcircuit,AND-ORgate

Arithmeticshift2’scomplementofapositive,signbitremainsunchanged,andtheblankbitfillsin‘0’.Arithmeticleftshift2’scomplementofanegative,signbitremainsunchanged,andthelowbitfills___0___.Arithmeticrightshift2’scomplementofanegative,signbitremainsunchanged,andthehighbitfills___1___,andtruncatlowbit.

问题10？

？

Letthewordlengthis8,thefixedpointintegerwith2’scomplementrepresentationof-1is_______.

Infixedpointoperation,itwillbeoverflowwhentheresultexceedstherepresentrangeofthecomputer.A

Fora8-bit2’scomplementrepresentationintegernumber,itsminimalvalueis__-128____,itsmaximalvalueis___127___.

Afixedpointnumberiscomposedofsignbitandnumericalpart.

A.对B.错B

Therangeofrepresentationfora2’scomplementnumbersystemof16bits（includingthesignbit）is（A）.

A.-215~+（215-1）B.-（215–1）~+（215–1）C.-215~+215D.-（215+1）~+215

8-4-2-1BCDcodeofanumberis011110001001，thenitstruevalueis___789___.

Theaddition/subtractionalgorithmforsignmagnituderepresentationisrathersimple.B

Whichofthefollowingnumbersisoddparity奇校验?

A?

A.0B.001000111C.1D.1

Thenumberrepresentedinthecomputersometimeswillbeoverflow,thefundamentalreasonisthelimitedcomputerwordlength.A

Forfixedpointbinarycalculator,subtractionisimplementedthrough（B）.

A.2’scomplementbinarysubtractorB.2’scomplementbinaryadder

C.signmagnitudedecimaladderD.signmagnitudebinarysubtractor

In2’scomplementaddition/subtraction,using2signbitsforoverflowdetection,whenthe2signbits‘S1S2’equals‘10’,itmeansthat（C）.

A.resultispositive,withnooverflowB.resultisnegative,withnooverflow

C.resultisoverflowD.resultisunderflow

The2’scomplementrepresentationof-127is.B

Theminimalnumberofthefollowingnumbersis（B）.

A.（100101）232+4+1=37B.（00100010）BCD22C.（50）840D.（625）16

2’scomplementrepresentationof‘0’equalsto1’scomplementrepresentationof‘-1’.B

A.对B.错0

If[X]2’scomplement=，then[X]sign-magnitude=（B）

Forsignmagnituderepresentation,1’scomplementrepresentation,2’scomplementrepresentation,__原码__and__反码___has2representationsof‘0’.

问题26

Theuseof2’scomplementoperationisadoptedtosimplifythedesignofcomputer.A

问题27

Fixedpointcalculatorisusedfor（A）.

A.fixedpointoperationB.floatingpointoperation

C.fixedpointoperationandfloatingpointoperationD.decimaladdition

问题28

When-1<

x<

0,[x]sign-magnitude=（A）

A.1-xB.（2-2-n）-|x|C.2+xD.x

问题29

Themaximalnumberofthefollowingnumbersis（A）.

A.（227）8151

B.（96）16150

C.（）2149

D.（143）548

问题30

8-4-2-1codeisbinarynumber.B

问题31？

Adecimalnumberis,thenitsoctalformis,itshexadecimalform.

问题32

Fora8-bit1’scomplementrepresentationintegernumber,itsminimalvalueis__-127___,itsmaximalvalueis__127___.

问题33

The（C）representationof‘0’isunique.

A.signmagnitudeand1’scomplement

B.1’scomplement

C.2’scomplement

D.signmagnitude

问题34

Therangeofrepresentationforaunsignedbinarynumbersystemof16bitsis___0_~_65535__.

问题35

Given【x1】2’scompl=，【x2】signmag=,thedecimalvalueofx1andx2are

___-52__and答案：

3.-101279.0110.

12.-128127

25.signmagnituderepresentation1’scomplementrepresentation

31.32.-127127

34.0~6553535.-52

第五章

Calculatorhasmanycomponents,butdatabusisthekeypart.B

Inanadder,thecarrygeneratevariable（G）ofbit‘i’is（C）.

A.Xi⊕Yi

B.Xi·

Yi·

Ci

C.Xi＋Yi＋Ci

D.Xi·

Yi

Thecarrylook-aheadcircuitchip74182realizesthecarrylogicbetweengroupsinparallel.

A.对B.错

Thesubtraction减法algorithm算法offixedpointbinaryisrealizedby（）.

A.subtractionforsignmagnituderepresentation

B.additionforbinarycodedecimal

C.additionfor2’scomplementrepresentation

D.subtractionfor2’scomplementrepresentation

ThemainfunctionofALUis（D）.

A.arithmeticoperation

B.onlyadditionoperation

C.logicoperation

D.logicandarithmetic算术operation

Inaripple-carryadder,thekeyfactoraffectingthespeedoftheadderis（C）.

A.Gate-leveldelay

B.spe