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Questão 1 de 60

1. What is not a main structural element of a computer system?

Selecione uma das seguintes:

● Operating system
● System Bus
● I/O Modules
● Main Memory
● Processor

Explicação

Questão 2 de 60

2. Which of the following registers are used by the processor to exchange data
with memory?

Selecione uma das seguintes:

● I/OAR and I/OBR
● Program status word
● PC and IR
● MAR and MBR

Explicação

Questão 3 de 60

3. Which of the following registers are used by the processor to exchange data
with input/output module?

Selecione uma das seguintes:

● I/OAR and I/OBR
● Program status word
● PC and IR
● MAR and MBR

Explicação

Questão 4 de 60

4. Which of the following element of a computer system controls the operation of
the computer and performs its data processing functions?

Selecione uma das seguintes:

● Processor
● I/O modules
● Main memory
● System bus

Explicação

Questão 5 de 60

5. Which of the following element of a computer system stores data and
programs?

Selecione uma das seguintes:

● I/O modules
● Processor
● System bus
● Main memory

Explicação

Questão 6 de 60

6. Which of the following provides for communication among elements of a
computer system?

Selecione uma das seguintes:

● I/O modules
● Processor
● System bus
● Main memory

Explicação

Questão 7 de 60

7. Which of the following element of a computer system moves data between the
computer and its external environment?

Selecione uma das seguintes:

● I/O modules
● System bus
● Processor
● Main memory

Explicação

Questão 8 de 60

8. The processor contains a single data register, called

Selecione uma das seguintes:

● AC
● IR
● PC
● PSW

Explicação

Questão 9 de 60

9. This register specifies a particular input/output device

Selecione uma das seguintes:

● I/OBR
● Memory buffer register
● I/OAR
● Memory address register

Explicação

Questão 10 de 60

10. This register is used for the exchange of data between an I/O module and the
processor

Selecione uma das seguintes:

● I/OBR
● Memory buffer register
● I/OAR
● Memory address register

Explicação

Questão 11 de 60

11. This register contains the data to be written into memory or which receives the
data read from memory

Selecione uma das seguintes:

● I/OBR
● memory address register
● memory buffer register
● I/OAR

Explicação

Questão 12 de 60

12. This register specifies the location in memory for the next read or write

Selecione uma das seguintes:

● I/OBR
● Memory buffer register
● I/OAR
● Memory address register

Explicação

Questão 13 de 60

13. Index register, segment register, and stack register are example of:

Selecione uma das seguintes:

● Address register
● Memory register
Memory buffer register
Memory quality register

Explicação

Questão 14 de 60

14. Which register contains the address of the next instruction to be fetched?

Selecione uma das seguintes:

● process counter
● program counter
● execution register
● instruction register

Explicação

Questão 15 de 60

15. Which register contains the instruction most recently fetched?

Selecione uma das seguintes:

● process counter
● program counter
● execution register
● instruction register

Explicação

Questão 16 de 60

16. Which register contains condition codes set by the processor hardware as the
result of operations?

Selecione uma das seguintes:

● Stack pointer
● Program status word
● Accumulator
● Program counter

Explicação

Questão 17 de 60

17. The figure 1.4.
1. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

301
● 941
● 302
● 940

Explicação

Questão 18 de 60

17.2. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

301
● 941
● 302
● 940

Explicação

Questão 19 de 60

17.3. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

● 301
● 941
● 302
● 940

Explicação

Questão 20 de 60

17.4. What is the address of the instruction that will be executed next?

Selecione uma das seguintes:

301
● 941
● 302
● 940

Explicação

Questão 21 de 60

17.5. Instruction in the IR will:

Selecione uma das seguintes:

Load 3 to AC from the memory
● Add 2 to AC from the memory
● Store 3 to AC from the memory
● Add 3 to AC from the memory

Explicação

Questão 22 de 60

17.6. Instruction in the IR will:

Selecione uma das seguintes:

● Load 3 to AC from the memory
● Add 2 to AC from the memory
● Store 3 to AC from the memory
● Add 3 to AC from the memory

Explicação

Questão 23 de 60

17.7. Instruction in the IR will:

Selecione uma das seguintes:

● Store content of AC to the memory
● Add 3 to the memory location from AC
● Store 5 to AC from the memory
● Add 2 to the memory location from AC

Explicação

Questão 24 de 60

17.8. What is the memory location of the data that is addressed in the instruction?

Selecione uma das seguintes:

● 301
● 941
● 302
● 940

Explicação

Questão 25 de 60

17.9. What is the memory location of the data that is addressed in the instruction?

Selecione uma das seguintes:

301
● 941
● 302
● 940

Explicação

Questão 26 de 60

17.10. What is the memory location of the data that is addressed in the
instruction?

Selecione uma das seguintes:

● 301
● 941
● 302
● 940

Explicação

Questão 27 de 60

18. The fetched instruction is loaded into the

Selecione uma das seguintes:

● PC
● Memory
● Accumulator
● IR

Explicação

Questão 28 de 60

19. At the beginning of each instruction cycle, the processor fetches an instruction
from the memory. The address of the instruction is held in

Selecione uma das seguintes:

● PC
● MAR
● MBR
● IR

Explicação

Questão 29 de 60

20. The processor is executing ‘Load AC from memory’ instruction. Choose the
correct micro-instructions:

Selecione uma das seguintes:

● PC -> MAR
M -> MBR
MBR -> IR
IR -> MBR
M -> MAR
MAR -> AC
● PC -> MAR
M -> MBR
MBR -> IR
IR -> MAR
M -> MBR
MBR -> AC
● PC -> MBR
M -> MAR
MAR -> IR
IR -> MAR
M -> MBR
MBR -> AC
● PC -> MAR
M -> MBR
MBR -> AC
IR -> MAR
M -> MBR
MBR -> AC

Explicação

Questão 30 de 60

21.1 Choose the micro-instructions that reflect instruction execution stage shown
in the figure below: (четыре вопроса в одном)четыре вопроса в одном))

Selecione uma das seguintes:

● PC -> MAR 303
M -> MBR 2941
MBR -> IR 2941
● IR -> MAR 2941
AC -> MBR 0005
MBR -> M 0005
● IR -> MAR 941
AC -> MBR 0005
MBR -> M 0005
● IR -> MAR 303
M -> MBR 0005
MBR -> M 0005

Explicação

Questão 31 de 60

21.2 Choose true version?

Selecione uma das seguintes:

● IR -> MAR 941
M -> MBR 0002
MBR ->AC 0005
● PC -> MAR 302
M -> MBR 2941
MBR -> IR 2941
● IR -> MAR 941
M -> MBR 0002
MBR -> AC 0002
● PC -> MAR 301
M -> I/OBR 5941
I/OBR 5941

Explicação

Questão 32 de 60

21.3 Choose true version?

Selecione uma das seguintes:

PC -> MAR 301
M -> MBR 6941
MBR -> IR 5941
● IR -> MAR 941
AC -> MBR 0003
MBR -> M 0003
● IR -> MAR 941
M -> MBR 0002
MBR -> AC 0002
● PC -> MAR 301
M -> MBR 5941
MBR -> IR 5941

Explicação

Questão 33 de 60

Choose true version?

Selecione uma das seguintes:

● PC -> MAR 300
M -> MAR 1940
MBR -> IR 1940
● PC -> MAR 300
M -> MBR 1940
MBR -> IR 1940
● M -> MAR 300
M -> MBR 1940
MBR -> IR 1940
● PC -> MAR 301
M -> MBR 1940
MBR -> IR 1940

Explicação

Questão 34 de 60

22. When an I/O device completes an I/O operation, the device issues an interrupt
signal to the processor and then:

Selecione uma das seguintes:

● The processor finishes execution of the current instruction before
responding to the interrupt
● The processor saves information needed to resume the current program
at the point if interrupt
● The processor loads the program counter with the entry location of the
interrupt-handling routine
● The processor stops execution of the current instruction without finishing
it and responds to the interrupt

Explicação

Questão 35 de 60

23. When the time required for the I/O operation is less that the time to complete
the execution of instructions between write operations in the user program, it
is:

Selecione uma das seguintes:

● Short I/O wait
● Long I/O wait
● Slow I/O wait
● Fast I/O wait

Explicação

Questão 36 de 60

24. When the time required for the I/O operation will take much more time than
executing a sequence of user instructions, it is:

Selecione uma das seguintes:

● Short I/O wait
● Fast I/O wait
● Long I/O wait
● Slow I/O wait

Explicação

Questão 37 de 60

25. Most I/O devices are:

Selecione uma das seguintes:

● much slower than the processor
● much processor than the slower
both

Explicação

Questão 38 de 60

26. If there no interrupts, after each write operation, the processor must:?????

Selecione uma das seguintes:

● Pause and remain idle until the I/O operation finishes
● Save the PSW and PC onto control stack
● Finish execution of current instruction
● Load new PC value

Explicação

Questão 39 de 60

27. The processor determined that there is a pending interrupt and sent an
acknowledgement signal to the device that issued the interrupt. Then, the
processor:

Selecione uma das seguintes:

The processor tests for a pending interrupt request, determines that there is one, and
sends an acknowledgment signal to the device that issued the interrupt.The
acknowledgment allows the device to remove its interrupt signal
жай гана ана сурактты зубри и все) Удачи

Explicação

Questão 40 de 60

28. The figure 1.5, 1.8, 1.9, 1.12, 1.13, 1.14, 1.19: (четыре вопроса в одном)м)ного вопросов в одном))
1. The following figure demonstrates:

Selecione uma das seguintes:

Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 41 de 60

28,2. The following figure demonstrates:

Selecione uma das seguintes:

Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 42 de 60

28,3. The following figure demonstrates:

Selecione uma das seguintes:

Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 43 de 60

28,4. The figure a) demonstrates the program timing diagram for:

Selecione uma das seguintes:

Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 44 de 60

28,5. The figure b) demonstrates the program timing diagram for

Selecione uma das seguintes:

● Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 45 de 60

28,6. The figure a) demonstrates the program timing diagram for:

Selecione uma das seguintes:

● Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 46 de 60

28,7. The figure b) demonstrates the program timing diagram for

Selecione uma das seguintes:

Interrupts; fast I/O wait
● Interrupts; short I/O wait
● Interrupts; long I/O wait
● No interrupts
● Interrupts; slow I/O wait

Explicação

Questão 47 de 60

28,8. The figure below shows

Selecione uma das seguintes:

Parallel interrupt processing
● Nested interrupt processing
● Sequential interrupt processing
● Parent-child interrupt processing

Explicação

Questão 48 de 60

28,9. The figure below shows

Selecione uma das seguintes:

Parallel interrupt processing
● Nested interrupt processing
● Sequential interrupt processing
● Parent-child interrupt processing

Explicação

Questão 49 de 60

28,10. The figure below shows

Selecione uma das seguintes:

Parallel interrupt processing
● Nested interrupt processing
● Sequential interrupt processing
● Time Sequence of Multiple Interrupts

Explicação

Questão 50 de 60

28,11. As one goes down the memory hierarchy

Selecione uma das seguintes:

● increasing frequency of access to the memory by the processor
● increasing capacity
● decreasing access time
● increasing cost per bit

Explicação

Questão 51 de 60

28,12. The given flowchart is an example of:

Selecione uma das seguintes:

● Manual memory access
● Programmed I/O
● Interrupt-driven I/O
● Direct memory access (DMA)

Explicação

Questão 52 de 60

28,13. The given flowchart is an example of:

Selecione uma das seguintes:

● Manual memory access
● Programmed I/O
● Interrupt-driven I/O
● Direct memory access (DMA)

Explicação

Questão 53 de 60

28,14. The given flowchart is an example of:

Selecione uma das seguintes:

● Manual memory access
● Programmed I/O
● Interrupt-driven I/O
● Direct memory access (DMA)

Explicação

Questão 54 de 60

29. Complete the relationship concerning the memory systems: faster access time
–

Selecione uma das seguintes:

● smaller cost per bit
● faster access speed
● greater cost per bit
● lower capacity

Explicação

Questão 55 de 60

30. Complete the relationship concerning the memory systems: greater capacity –

Selecione uma das seguintes:

● smaller cost per bit
● faster access speed
● greater cost per bit
● lower capacity

Explicação

Questão 56 de 60

31. Complete the relationship concerning the memory systems: greater capacity –

Selecione uma das seguintes:

● faster access speed
● greater cost per bit
● slower access time
● lower capacity

Explicação

Questão 57 de 60

33. The smaller, more expensive, faster memory is:

Selecione uma das seguintes:

● Register
● Main memory
● Cache
● Disk drive

Explicação

Questão 58 de 60

34. If the accessed word is found in the faster memory, that is defined as a:

Selecione uma das seguintes:

● evrika
● hit
● win
● bingo

Explicação

Questão 59 de 60

35. If the accessed word is not found in the faster memory, that is defined as a:

Selecione uma das seguintes:

● Loss
● zero
● miss
● ricochet

Explicação

Questão 60 de 60

36. This type of memory is nonvolatile:

Selecione uma das seguintes:

● Main memory
● Cache
● Secondary memory
● Register

Explicação

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Questão 1 de 60

1. What is not a main structural element of a computer system?

Selecione uma das seguintes:

Explicação

Questão 2 de 60

2. Which of the following registers are used by the processor to exchange data with memory?

Selecione uma das seguintes:

Explicação

Questão 3 de 60

3. Which of the following registers are used by the processor to exchange data with input/output module?

Selecione uma das seguintes:

Explicação

Questão 4 de 60

4. Which of the following element of a computer system controls the operation of the computer and performs its data processing functions?

Selecione uma das seguintes:

Explicação

Questão 5 de 60

5. Which of the following element of a computer system stores data and programs?

Selecione uma das seguintes:

Explicação

Questão 6 de 60

6. Which of the following provides for communication among elements of a computer system?

Selecione uma das seguintes:

Explicação

Questão 7 de 60

7. Which of the following element of a computer system moves data between the computer and its external environment?

Selecione uma das seguintes:

Explicação

Questão 8 de 60

8. The processor contains a single data register, called

Selecione uma das seguintes:

Explicação

Questão 9 de 60

9. This register specifies a particular input/output device

Selecione uma das seguintes:

Explicação

Questão 10 de 60

10. This register is used for the exchange of data between an I/O module and the processor

Selecione uma das seguintes:

Explicação

Questão 11 de 60

11. This register contains the data to be written into memory or which receives the data read from memory

Selecione uma das seguintes:

Explicação

Questão 12 de 60

12. This register specifies the location in memory for the next read or write

Selecione uma das seguintes:

Explicação

Questão 13 de 60

13. Index register, segment register, and stack register are example of:

Selecione uma das seguintes:

Explicação

Questão 14 de 60

14. Which register contains the address of the next instruction to be fetched?

Selecione uma das seguintes:

Explicação

Questão 15 de 60

15. Which register contains the instruction most recently fetched?

Selecione uma das seguintes:

Explicação

Questão 16 de 60

16. Which register contains condition codes set by the processor hardware as the result of operations?

Selecione uma das seguintes:

Explicação

Questão 17 de 60

17. The figure 1.4. 1. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

Explicação

Questão 18 de 60

17.2. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

Explicação

Questão 19 de 60

17.3. What is the address of the instruction that is being executed?

Selecione uma das seguintes:

Explicação

Questão 20 de 60

17.4. What is the address of the instruction that will be executed next?

2. Which of the following registers are used by the processor to exchange data
with memory?

3. Which of the following registers are used by the processor to exchange data
with input/output module?

4. Which of the following element of a computer system controls the operation of
the computer and performs its data processing functions?

5. Which of the following element of a computer system stores data and
programs?

6. Which of the following provides for communication among elements of a
computer system?

7. Which of the following element of a computer system moves data between the
computer and its external environment?

10. This register is used for the exchange of data between an I/O module and the
processor

11. This register contains the data to be written into memory or which receives the
data read from memory

16. Which register contains condition codes set by the processor hardware as the
result of operations?

17. The figure 1.4.
1. What is the address of the instruction that is being executed?

17.10. What is the memory location of the data that is addressed in the
instruction?

19. At the beginning of each instruction cycle, the processor fetches an instruction
from the memory. The address of the instruction is held in

20. The processor is executing ‘Load AC from memory’ instruction. Choose the
correct micro-instructions:

21.1 Choose the micro-instructions that reflect instruction execution stage shown
in the figure below: (четыре вопроса в одном)четыре вопроса в одном))

22. When an I/O device completes an I/O operation, the device issues an interrupt
signal to the processor and then:

23. When the time required for the I/O operation is less that the time to complete
the execution of instructions between write operations in the user program, it
is:

24. When the time required for the I/O operation will take much more time than
executing a sequence of user instructions, it is: