Compuer Architecture Question
QUIZ
COMPUTER ARCHITECTURE
COMPUTER ARCHITECTURE
1. Early computers were not able to without human intervention. Why?
A. The early computers did not have a memory unit.
B. The early computers were very big.
C. The early computers had frequent power failures.
2. What are the main components of a computer with von Neumann architecture?
2. What are the main components of a computer with von Neumann architecture?
A. Processor and input-output devices.
B. Processor, memory unit and input-output devices.
C. CPU, monitor, keyboard and mouse.
3. Which of the following buses is bi-directional?
3. Which of the following buses is bi-directional?
A. Address bus.
B. Data bus.
C. Control bus.
4. What is the function of control signals?
4. What is the function of control signals?
A. Synchronises the components of the computer.
B. Controls the amount of data to be stored in memory.
C. User sends control signals to control the processor.
5. What is a register?
5. What is a register?
A. Address of data found in computer memory.
B. High-speed storage area within the computer.
C. Control signals to control the activities within the computer.
6. Which of the following registers form the memory unit?
6. Which of the following registers form the memory unit?
A. Memory Address Register and Memory Data Register
B. Program Counter and Memory Data Register
C. Program Counter and Current Instruction Register
7. Which of the following registers form the control unit?
7. Which of the following registers form the control unit?
A. Memory Address Register and Memory Data Register
B. Program Counter and Memory Data Register
C. Program Counter and Current Instruction Register
8. What type of signal is transmitted between the memory unit and the processor?
8. What type of signal is transmitted between the memory unit and the processor?
A. Data signals.
B. Control signals.
C. Both data and control signals.
9. What type of signal is transmitted between the memory unit and processor?
A. Data signals.
9. What type of signal is transmitted between the memory unit and processor?
A. Data signals.
B. Control signals.
C. Both data and control signals.
10. What type of signal is transmitted between the control unit and input-output devices?
10. What type of signal is transmitted between the control unit and input-output devices?
A. Data signals.
B. Control signals.
C. Both data and control signals.
11. What is the function of a program counter?
A. PC contains the next instruction to be executed.
B. PC contains the current instruction to be executed.
C. PC contains the address of the next instruction to be executed.
12. Memory Address Register (MAR) is a special-purpose register. What is its function?
12. Memory Address Register (MAR) is a special-purpose register. What is its function?
A. Stores the data which has to be read and written.
B. Stores the address of the data which is about to have a value read from and written to.
C. Stores the sum of two bits when it is added.
13. Which register supplies the address of data to MAR at the fetch stage of the fetch-execute cycle? A. Memory Data Register. B. Current Instruction Register. C. Program Counter.
14. What is the function of a Current Instruction Register?
13. Which register supplies the address of data to MAR at the fetch stage of the fetch-execute cycle? A. Memory Data Register. B. Current Instruction Register. C. Program Counter.
14. What is the function of a Current Instruction Register?
A. CIR contains the next instruction to be executed.
B. CIR contains the current instruction to be executed.
C. CIR contains the address of the current instruction to be executed.
15. Which register supplies instructions to CIR at the fetch stage of the fetch-execute cycle?
15. Which register supplies instructions to CIR at the fetch stage of the fetch-execute cycle?
A. Memory Data Register.
B. Current Instruction Register.
C. Program Counter.
16. Which of the following operations are NOT performed by Arithmetic and Logic Unit?
16. Which of the following operations are NOT performed by Arithmetic and Logic Unit?
A. Addition, subtraction and multiplication.
B. READ and WRITE operation.
C. AND, OR and NOT.
17. Which of the following is true about the READ operation?
17. Which of the following is true about the READ operation?
A. Contents of memory is copied to MDR.
B. Contents of MDR is copied to memory.
C. Contents of memory is copied to MAR.
18. Which of the following is true about the WRITE operation?
A. Contents of memory is copied to MDR.
B. Contents of MDR is copied to memory.
C. Contents of memory is copied to MAR.
19. What is the significance of an input device?
19. What is the significance of an input device?
A. Converts information from user to computer understandable form.
B. Converts data from users to computer understandable form and then processes.
C. Converts the result of computer processing to human understandable form.
20. What is the significance of an output device?
20. What is the significance of an output device?
A. Converts information from user to computer understandable form.
B. Converts data from users to computer understandable form and then processes.
C. Converts the result of computer processing to human understandable form.
Question No. Answers
1 A
2 B
3 B
4 A
5 B
6 A
7 C
8 A
9 B
10 B
11 C
12 B
13 C
14 B
15 A
16 B
17 A
18 B
19 B
20 C
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