Microprocessor & Microcontroller (Cs502)

40 Questions | Total Attempts: 635

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Microprocessor Quizzes & Trivia

Questions and Answers
  • 1. 
    Which is the microprocessor comprises: 
    • A. 

      Register section

    • B. 

      ALU

    • C. 

      Control unit

    • D. 

      All of these

  • 2. 
    What will be stored by register? 
    • A. 

      Data

    • B. 

      Operands

    • C. 

      Memory

    • D. 

      None of these

  • 3. 
    Accumulator based microprocessor example are:
    • A. 

      Intel 8085

    • B. 

      Motorola 6809

    • C. 

      A and B

    • D. 

      None of these

  • 4. 
    A sets of registers can contain:
    • A. 

      Data

    • B. 

      Memory addresses

    • C. 

      Result

    • D. 

      All of these

  • 5. 
    There are primarily two types of register:
    • A. 

      General purpose register

    • B. 

      Dedicated register

    • C. 

      A and B

    • D. 

      None of these

  • 6. 
    BCD stands for:
    • A. 

      Binary coded decimal

    • B. 

      Binary coded decoded

    • C. 

      Both a & b

    • D. 

      None of these

  • 7. 
    Which is used to store critical pieces of data during subroutines and interrupts:
    • A. 

      Stack

    • B. 

      Queue

    • C. 

      Accumulator

    • D. 

      Data register

  • 8. 
    The process by which data will be submitted in the stack is:
    • A. 

      Push

    • B. 

      Enter

    • C. 

      Submit

    • D. 

      None of these

  • 9. 
    Each memory location has:
    • A. 

      Address

    • B. 

      Contents

    • C. 

      Both A and B

    • D. 

      None of these

  • 10. 
    IP stands for:
    • A. 

      Instruction pointer

    • B. 

      Instruction purpose

    • C. 

      Instruction paints

    • D. 

      None of these

  • 11. 
    The size of data bus in 8085 is:
    • A. 

      4 bit

    • B. 

      6 bit

    • C. 

      8bit

    • D. 

      16 bit

  • 12. 
    Address bus size is:
    • A. 

      8 bit

    • B. 

      16 bit

    • C. 

      24 bit

    • D. 

      32 bit

  • 13. 
    Data bus is:
    • A. 

      Uni directional

    • B. 

      Bi directional

    • C. 

      Both A and B

    • D. 

      None of these

  • 14. 
    Address bus is:
    • A. 

      Bi directional

    • B. 

      Uni directional

    • C. 

      Both A and B

    • D. 

      None of these

  • 15. 
    In 8085, all the results are stored in:
    • A. 

      Accumulator

    • B. 

      Stack Pointer

    • C. 

      Program Counter

    • D. 

      Instruction Pointer

  • 16. 
    In 8085, register pairs are:
    • A. 

      AB, CD, EF, HM

    • B. 

      BC, DE, HL

    • C. 

      All of the above

    • D. 

      None of these

  • 17. 
    When 9th bit will come, after any arithmetic operation, carry flag will be:
    • A. 

      Set

    • B. 

      Reset

    • C. 

      All of the above

    • D. 

      None of the above.

  • 18. 
    In an arithmetic result, if even number of ones are present, which flag will be set?
    • A. 

      Carry

    • B. 

      Auxiliary Carry

    • C. 

      Zero

    • D. 

      Parity

  • 19. 
    Auxiliary carry will be set when:
    • A. 

      Carry will be passed from bit 0 to bit 1

    • B. 

      Carry will be passed from bit 3 to bit 4

    • C. 

      All of the above

    • D. 

      None of these

  • 20. 
    Z flag will be set when:
    • A. 

      Final result is all ones

    • B. 

      Final result is all zeros

    • C. 

      All of the above

    • D. 

      None of the above

  • 21. 
    Addressing mode is:
    • A. 

      Opcode, Operand and Process

    • B. 

      Operand, Opcode and Process

    • C. 

      All of the above

    • D. 

      None of these

  • 22. 
    LDA 2050 - example of
    • A. 

      Immediate mode

    • B. 

      Indirect mode

    • C. 

      Direct mode

    • D. 

      Implicit mode

  • 23. 
    Example of immediate addressing mode is:
    • A. 

      LDA 2050

    • B. 

      MOV A,B

    • C. 

      MVI H, 23

    • D. 

      STAX B

  • 24. 
    Indirect register addressing mode is explained by:
    • A. 

      MOV A,M

    • B. 

      MOV A,B

    • C. 

      MVI A,09

    • D. 

      None of these

  • 25. 
    MOV H,L stands for
    • A. 

      Content of H is going to L

    • B. 

      Content of L is coming to H

    • C. 

      All of the above

    • D. 

      None of the above

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