Computer Architecture

Computer Architecture

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Question 1 of 20

1. Question
Early computers were not able to store instruction without human intervention. Why?
- The early computers did not have a memory unit.
- The early computers were very big.
- The early computers had frequent power failures.
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Question 2 of 20

2. Question
What are the main components of a computer with von Neumann architecture?
- Processor and input-output devices.
- Processor, memory unit and input-output devices.
- CPU, monitor, keyboard and mouse.
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Question 3 of 20

3. Question
Which of the following buses is bi-directional?
- Address bus.
- Data bus.
- Control bus.
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Question 4 of 20

4. Question
What is the function of control signals?
- Synchronises the components of the computer.
- Controls the amount of data to be stored in memory.
- User sends control signals to control the processor.
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Question 5 of 20

5. Question
What is a register?
- Address of data found in computer memory.
- High-speed storage area within the computer.
- Control signals to control the activities within the computer.
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Question 6 of 20

6. Question
Which of the following registers form the memory unit?
- Memory Address Register and Memory Data Register
- Program Counter and Memory Data Register
- Program Counter and Current Instruction Register
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Question 7 of 20

7. Question
Which of the following registers form the control unit?
- Memory Address Register and Memory Data Register
- Program Counter and Memory Data Register
- Program Counter and Current Instruction Register
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Question 8 of 20

8. Question
What type of signal is transmitted between the memory unit and the processor?
- Data signals.
- Control signals.
- Both data and control signals.
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Question 9 of 20

9. Question
What type of signal is transmitted between the memory unit and processor?
- Data signals.
- Control signals.
- Both data and control signals.
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Question 10 of 20

10. Question
What type of signal is transmitted between the control unit and input-output devices?
- Data signals.
- Control signals.
- Both data and control signals.
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Question 11 of 20

11. Question
What is the function of a program counter?
- PC contains the next instruction to be executed.
- PC contains the current instruction to be executed.
- PC contains the address of the next instruction to be executed.
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Question 12 of 20

12. Question
Memory Address Register (MAR) is a special-purpose register. What is its function?
- Stores the data which has to be read and written.
- Stores the address of the data which is about to have a value read from and written to.
- Stores the sum of two bits when it is added.
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Question 13 of 20

13. Question
Which register supplies the address of data to MAR at the fetch stage of the fetch-execute cycle?
- Memory Data Register.
- Current Instruction Register.
- Program Counter.
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Question 14 of 20

14. Question
What is the function of a Current Instruction Register?
- CIR contains the next instruction to be executed.
- CIR contains the current instruction to be executed.
- CIR contains the address of the current instruction to be executed.
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Question 15 of 20

15. Question
Which register supplies instructions to CIR at the fetch stage of the fetch-execute cycle?
- Memory Data Register.
- Current Instruction Register.
- Program Counter.
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Question 16 of 20

16. Question
Which of the following operations are NOT performed by Arithmetic and Logic Unit?
- Addition, subtraction and multiplication.
- READ and WRITE operation.
- AND, OR and NOT.
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Question 17 of 20

17. Question
Which of the following is true about the READ operation?
- Contents of memory is copied to MDR.
- Contents of MDR is copied to memory.
- Contents of memory is copied to MAR.
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Question 18 of 20

18. Question
Which of the following is true about the WRITE operation?
- Contents of memory is copied to MDR.
- Contents of MDR is copied to memory.
- Contents of memory is copied to MAR.
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Question 19 of 20

19. Question
What is the significance of an input device?
- Converts information from user to computer understandable form.
- Converts data from users to computer understandable form and then processes.
- Converts the result of computer processing to human understandable form.
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Question 20 of 20

20. Question
What is the significance of an output device?
- Converts information from user to computer understandable form.
- Converts data from users to computer understandable form and then processes.
- Converts the result of computer processing to human understandable form.
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