Computer organization mcqs basic operational concept

 

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Computer organization mcqs basic operational concept

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Question 1
The decoded instruction is stored in .....
A
IR
B
PC
C
Registers
D
MDR
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Question 1 Explanation: 
The instruction after obtained from the PC, is decoded and operands are fetched and stored in the IR.
Question 2
The instruction -> Add LOCA, R0 does .....
A
Adds the value of LOCA to R0 and stores in the temp register
B
Adds the value of R0 to the address of LOCA
C
Adds the values of both LOCA and R0 and stores it in R0
D
Adds the value of LOCA with a value in accumulator and stores it in R0
English grammar Questions answers

Question 3
Which registers can interact with the secondary storage?
A
MAR
B
PC
C
IR
D
R0
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Question 3 Explanation: 
MAR can interact with secondary storage in order to fetch data from it.
Question 4
During the execution of a program which gets initialized first?
A
MDR
B
IR
C
PC
D
MAR
UPSC GS Questions answers

Question 4 Explanation: 
For the execution of a process first the instruction is placed in the PC.
Question 5
Which of the register/s of the processor is/are connected to Memory Bus?
A
PC
B
MAR
C
IR
D
Both PC and MAR
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Question 5 Explanation: 
MAR is connected to the memory BUS in order to access the memory.
There are 5 questions to complete.

 

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