Exercise: Microprocessors

Questions for: Microprocessors

Read the following statement
  1. Multi-processing operation permits highly efficient parallel processing at several levels.
  2. Multi processing involves use of several processing units jointly on a common program and severally on different programs.
  3. In multi-processing the assignment of facilities to tasks, loading of programs and monitoring of I/O activity is taken care of by operating system.
Which of the above are correct?
A:
All
B:
1 and 2 only
C:
1 and 3 only
D:
2 and 3 only
Answer: A
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Read the following statements about address space in microprocessors
  1. An address space is a set of all possible addresses which can be generated by a microprocessor.
  2. Each address in the address space allows a designer to provide at least one memory or I/O location in the system.
  3. Two types of address spaces are memory and I/O address space.
  4. Some micro processors have only one type of address space.
Which of the above are correct?
A:
All
B:
1, 2, 3 only
C:
1, 2, 4 only
D:
1, 3, 4 only
Answer: A
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Consider the instructions
  1. MOV M, B
  2. OUT 4
  3. LDAX
 Which of the above require memory write cycle?
A:
1, 2, 3
B:
1 and 2 only
C:
1 and 3 only
D:
2 and 3 only
Answer: C
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In the expression b = 2.1 / 1.2 * 3.1 + 3 / 7.1 * 6 which operation would have the first priority in C?
A:
2.1 / 1.2
B:
1.2 * 3.1
C:
2.1 / 1.2 * 3.1
D:
3 / 7.1
Answer: A
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The number of categories in which registers are classified in μP are
A:
2
B:
3
C:
4
D:
5
Answer: B
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