8. Which one of the following statements is not the function of I/O interface? *
2 points
A. Provides signals to the peripheral controller
B. Decodes commands it receives from CPU
C. Decodes the address of peripheral devices
D. None of the above
9. The average time required to reach a storage location in auxiliary memory such as magnetic disks and get its contents is called __________. *
2 points
A. Seek Time
B. Transfer Time
C. Access Time
D. None of the above
10. In which of the following modes of transfer the CPU wastes time checking the status flag instead of doing other useful processing task? *
2 points
A. Interrupt-initiated I/O
B. Direct Memory Access
C. Programmed I/O
D.Indirect Memory Access
11. The technique of synchronizing the CPU with peripheral device in which the device sends a signal when it is ready? *
2 points
A. Direct Memory Access
B. Interrupt-initiated I/O
C. Programmed I/O
D. Parallel I/O
12. Which one of the following mode of data transfers best suitable for fast transfer of information between magnetic disks and memory? *
2 points
A. Direct Memory Access
B. Interrupt-initiated I/O
C. Programmed I/O
D. All of the above
13. A type of memory unit accessed by content rather than by specific address? *
2 points
A. Main memory
B. Optical disk
C. Magnetic disk
D. Associative memory
14. Which one of the following is false about Harvard architecture? *
2 points
A. It has physically separate signals and Storage for code and Data memory.
B. It is possible to access program memory and data memory simultaneously.
C. It is possible for program contents to be modified by the program itself.
D. It has two sets of Address/Data buses between CPU and memory
15. Which one is false about Von-Neumann architecture? *
2 points
A. Instructions and Data are stored in the same memory.
B. No need of scheduling for data transfers and instruction fetches.
C. It has shared signals and memory for code (Instruction) and data.
D. It has only one bus which is used for both data transfers and instruction fetches
Answers
Answer:
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Explanation:
Answer:
Answers are given below:
Explanation:
8. c. Decodes the address of peripheral devices.
9. c. Access Time is the average time it takes to reach the storage location of an auxiliary storage device such as a magnetic disk and save its contents
10. c. Programmed I/O
11. b. Interrupt-initiated I/O
12. a. Direct Memory Access
13. d. Associative Memory: The type of storage unit accessed by the content rather than a specific address
14. d. It has two sets of Address/Data buses between CPU and memory
15. d. It has only one bus which is used for both data transfers and instruction fetches
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