Computer Fundamentals Mcqs

Page No. 25

The ________ gate is an OR gate followed by a NOT gate.


aNAND

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b EXOR

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c NOR

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dEXNOR

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View Answer NOR

The expression of a NAND gate is_______


aA.B

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bA’B+AB’

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c (A.B)’

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d (A+B)’

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View Answer (A.B)’

Which of the following correctly describes the distributive law.


a( A+B)(C+D)=AB+CD

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b(A+B).C=AC+BC

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c(AB)(A+B)=AB

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d(A.B)C=AC.AB

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View Answer (A+B).C=AC+BC

Brain of computer is ____________


a Control unit

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b Arithmetic and Logic unit

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cCentral Processing Unit

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dMemory

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View Answer Memory

Control Unit acts as the central nervous system of the computer.


a True

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bFalse

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cA & B

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dNone of these

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View Answer True

What does MBR stand for?


aMain Buffer Register

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b Memory Buffer Routine

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cMain Buffer Routine

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dMemory Buffer Register

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In the instruction ADD A, B, the answer gets stored in ___________


aB

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b A

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cBuffer

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dCiprofloxacin

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View Answer A

What does PC stand for?


aProgram Changer

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bProgram Counter

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cPerformance Counter

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dPerformance Changer

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View Answer Program Counter

Which of the following holds the last instruction fetched?


aPC

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bMAR

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cMBR

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dIR

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View Answer IR

The portion of the processor which contains the hardware required to fetch the operations is _______


aDatapath

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b Processor

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cControl

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dOutput unit

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View Answer Datapath

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