Microprocessor and Microcontroller MCQ Questions and Answers Quiz

91. Which microprocessor has multiplexed data and address lines?

  1. 8086
  2. 80286
  3. 80386
  4. Pentium

92. Which is not an operand?

  1. Variable
  2. Register
  3. Memory location
  4. Assembler

93. Which is not part of the execution unit (EU)?

  1. Arithmetic logic unit (ALU)
  2. Clock
  3. General registers
  4. Flags
  5. Arithmetic logic unit (ALU)
  6. Clock
  7. General registers
  8. Flags

94. Which is not part of the execution unit (EU)?

  1. Arithmetic logic unit (ALU)
  2. Clock
  3. General registers
  4. Flags
  5. Arithmetic logic unit (ALU)
  6. Clock
  7. General registers
  8. Flags

95. A 20-bit address bus can locate ________

  1. 1,048,576 locations
  2. 2,097,152 locations
  3. 4,194,304 locations
  4. 8,388,608 locations

96. Which of the following is not an arithmetic instruction?

  1. INC (increment)
  2. CMP (compare)
  3. DEC (decrement)
  4. ROL (rotate left)

97. During a read operation the CPU fetches ________

  1. a program instruction
  2. another address
  3. data itself
  4. all of the above

98. Which of the following is not an 8086/8088 general-purpose register?

  1. Code segment (CS)
  2. Data segment (DS)
  3. Stack segment (SS)
  4. Address segment (AS)

99. A 20-bit address bus allows access to a memory of capacity

  1. 1 MB
  2. 2 MB
  3. 4 MB
  4. 8 MB

100. Which microprocessor accepts the program written for 8086 without any changes?

  1. 8085
  2. 8086
  3. 8087
  4. 8088
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