MCQ Computer Science

Computer Organization Questions and Answers – Basic Operational Concept Part-II

Computer Organization Questions and Answers – Basic Operational Concept

This set of Computer Organization and Architecture MCQ focuses on “Basic Operational Concept of The Processor”.
1. The decoded instruction is stored in ______ .
a) IR
b) PC
c) Registers
d) MDR

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Explanation: The instruction after obtained from the PC, is decoded and operands are fetched and stored in the IR.

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

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3. Which registers can interact with the secondary storage ?
a) MAR
b) PC
c) IR
d) R0

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Explanation: MAR can interact with secondary storage in order to fetch data from it.

4. During the execution of a program which gets initialized first ?
a) MDR
b) IR
c) PC
d) MAR

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Answer : C

Explanation: For the execution of a process first the instruction is placed in the PC

5. Which of the register/s of the processor is/are connected to Memory Bus ?
a) PC
b) MAR
c) IR
d) Both a and b

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Answer : B

Explanation: MAR is connected to the memory BUS in order to access the memory

6. ISP stands for,
a) Instruction Set Processor
b) Information Standard Processing
c) Interchange Standard Protocol
d) Interrupt Service Procedure

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Explanation: None.

7. The internal Components of the processor are connected by _______ .
a) Processor intra-connectivity circuitry
b) Processor bus
c) Memory bus
d) Rambus

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Explanation: The processor BUS is used to connect the various parts in order to provide a direct connection to the CPU

8. ______ is used to choose between incrementing the PC or performing ALU operations .
a) Conditional codes
b) Multiplexer
c) Control unit
d) None of these

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Explanation: The multiplexer circuit is used to choose between the two as it can give different results based on the input.

9. The registers,ALU and the interconnection between them are collectively called as _____ .
a) Process route
b) Information trail
c) information path
d) data path

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Explanation: The Operational and processing part of the CPU are collectively called as data path.

10. _______ is used to store data in registers .
a) D flip flop
b) JK flip flop
c) RS flip flop
d) none of these

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Explanation: None.

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