Computer Fundamentals Mcqs

Page No. 25

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


aNAND


b EXOR


c NOR


dEXNOR


View Answer NOR

The expression of a NAND gate is_______


aA.B


bA’B+AB’


c (A.B)’


d (A+B)’


View Answer (A.B)’

Which of the following correctly describes the distributive law.


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


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


c(AB)(A+B)=AB


d(A.B)C=AC.AB


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

Brain of computer is ____________


a Control unit


b Arithmetic and Logic unit


cCentral Processing Unit


dMemory


View Answer Memory

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


a True


bFalse


cA & B


dNone of these


View Answer True

What does MBR stand for?


aMain Buffer Register


b Memory Buffer Routine


cMain Buffer Routine


dMemory Buffer Register



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


aB


b A


cBuffer


dCiprofloxacin


View Answer A

What does PC stand for?


aProgram Changer


bProgram Counter


cPerformance Counter


dPerformance Changer


View Answer Program Counter

Which of the following holds the last instruction fetched?


aPC


bMAR


cMBR


dIR


View Answer IR

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


aDatapath


b Processor


cControl


dOutput unit


View Answer Datapath

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