Top 150+ Solved Microprocessors and Microcontrollers MCQ Questions Answer
Q. Which is not part of the execution unit (EU)?
a. Arithmetic logic unit (ALU)
b. Clock
c. General registers
d. Flags
Q. A 20-bit address bus can locate .
a. 1,048,576 locations
b. 2,097,152 locations
c. 4,194,304 locations
d. 8,388,608 locations
Q. Which of the following is not an arithmetic instruction?
a. INC (increment)
b. CMP (compare)
c. DEC (decrement)
d. ROL (rotate left)
Q. During a read operation the CPU fetches _.
a. a program instruction
b. another address
c. data itself
d. all of the above
Q. Which of the following is not an 8086/8088 general-purpose register?
a. Code segment (CS)
b. Data segment (DS)
c. Stack segment (SS)
d. Address segment (AS)
Q. Which microprocessor accepts the program written for 8086 without any changes?
a. 8085
b. 8086
c. 8087
d. 8088
Q. Which group of instructions do not affect the flags?
a. Arithmetic operations
b. Logic operations
c. Data transfer operations
d. Branch operations
Q. The result of MOV AL, 65 is to store
a. store 0100 0010 in AL
b. store 42H in AL
c. store 40H in AL
d. store 0100 0001 in AL