New SolvedExercise.Class-5 Ch-1:HistoryofComputers · 2020. 5. 14. · D.Answerthequestions:-1.WhatisanAbacus? Ans.Abacusisconsideredasthefirstcalculatingdevicethatwasdevelopedaround5000yearsagoin

Topic1:EvolutionofComputer.

Ch-1:HistoryofComputers

SolvedExercise. Class-5

A.Choosethecorrectoptionandfillintheblanks.

1.___CharlesBabbage_______isknownasthefatherofcomputer.

a)BlaisePascal b)CharlesBabbage c)JohnNapier

2.__VacuumTubes_technologywasusedinthefirstgenerationcomputer.

a)ICs b)VLSICs c)VacuumTubes

3.ThefifthgenerationcomputerswillbebasedonAI(ArtificialIntelligence)

a)Transistors b)AI c)IC

4.___Second_generationcomputerusedtransistors.

a)Firstb)Second c)Third

B.Matchthefollowing:

1)ENIAC i)FifthGeneration (5)

2)IBM360 ii)FourthGeneration(4)

3)UNIVACIII iii)ThirdGeneration(2)

4)AppleII iv)SecondGeneration(3)

5)ArtificialIntelligence v)FirstGeneration(1)

C.Namethegenerationthesecomputerbelongsto:

D.Answerthequestions:-

1.WhatisanAbacus?

Ans.Abacusisconsideredasthefirstcalculatingdevicethatwasdevelopedaround5000yearsagoin

China.Itwasmadeupofwoodenframewithrods.Eachhavingbeads.Simplecalculationslike

additionorsubtractioncouldbeperformedusingthisdevice.

2.WhoinventedtheSteppedReckoner?

Ans.TheSteppedReckonerwasinventedbyGottfriedWilhelmLeibniz.

3.Whichtechnologywasusedinfirstandsecondgenerationcomputers?

Ans.VacuumTubestechnologywasusedinfirstgenerationcomputers.Transistorstechnologywasusedin

secondgenerationcomputers.

4.Namesomeofthecomputerdevelopedduringthethirdandfourthgeneration?

Ans.SomecomputersofthethirdgenerationareIBM-360,ICL-1900andUNIVAC-900.

SomecomputersofthefourthgenerationareMITSAltiar,AppleII,iBM-PCandCRAY-1.

5.Writeanytwocharacteristicsofthecomputer?

Ans.Twocharacteristicsofthecomputerarei)HighSpeed andii)Accuracy.

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