1. Which of the following is not a function of how interrupts are used a) A completion of signal b) An abnormal event indicator c) A means of allocating CPU time d) A way of buffering large amount of data

2. A computer system provides an internal clock that sends an interrupt periodically to the CPU signaling that its time to start processing another program or threads. The time between the interrupt process is known as a) Delta b) Quantum c) Unit quantity d) Atomic quantity

3. When servicing an interrupt there are information that are known as the programs context, stored in a special area of memory called __________. a) PCI b) PCB c) PCL d) PCM

4. Multiple interrupts can be handled by assigning ______ to each interrupt a) Priorities b) Time delay c) Queue level d) Execution tickets

5. Vectors interrupts help the CPU to know __________. a) The capacity of interrupt device b) The addresses of the interrupt devices c) The speed of the interrupt devices d) a+c

6. which of the following is not a requirement of a computer system to handle I/O in a sufficient and effective manners. a) Peripheral devices must individually addressable b) Peripheral devices must only operate in block mode c) Peripheral devices can initiate communication with CPU d) The program I/O is suitable only for slow devices and individual word transfer

7. I/O devices use buffer to a) Store data permanently b) Store data temporarily c) Convert data before processing d) Convert data after processing

8. In LMC simulator every input value will go directly to the ___________. a) Program counter b) Accumulator c) Resistors d) Ram

9. Using sign and magnitude representation, the largest positive number that can be stored in 8-bit representation is a) 7 b) 127 c) 255 d) 512

10. Generally, the object images are smaller size than Bit map images because a) It is streamed online b) It is made up of mathematical equations c) It is not saved on the computer memory d) Option a and b

11. BRP in the assembly languages mean a) Branching on a positive value b) Branching on a 0 c) Branching on a positive value including 0 d) Jumping

12. In image representation high resolution means a) Larger file size and less bandwidth to transfer the file b) Larger file size and high bandwidth to transfer the file c) Low quality d) None of the above

13. To read from I/O devices the CPU reads data a) Address 01 b) Address 02 c) Address 99 d) Address a+b

14. Which sequence of commands is needed to enter 2 numbers into the LMC (using the input command) a) Input, add, input b) Input, load, input c) Input, store, input d) Input, enter, input

15. The method used to communicate event that needs special attentions a) Interrupts b) I/O controller c) Programmed I/O d) Device controller