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ECE :: Microprocessors

  1. Which of the following is a special component used in 8086 for block transfer of data to or from a port
  2. A.
    BMA
    B.
    DNA
    C.
    DMA
    D.
    BNA

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  3. In which of the following environment two or more process is executed in a time multiplexed fashion
  4. A.
    Uniprogramming
    B.
    Multiprogramming
    C.
    I/O Operation
    D.
    DMA

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  5. Which of the following prevents two or more process from simultaneously entering their critical sections for accessing a shared resource
  6. A.
    Mutual sharing
    B.
    Mutual Process
    C.
    Mutual exclusion
    D.
    Mutual Accessing

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  7. Which of the following IC is used as clock generator for 8086
  8. A.
    8087
    B.
    8284
    C.
    8088
    D.
    8294

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  9. Which of the following IC is used as clock generator for 8086
  10. A.
    8087
    B.
    8284
    C.
    8088
    D.
    8294

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  11. Which one of the following addressing mode is not possible in 8085
  12. A.
    Indexed addressing
    B.
    Indirect addressing
    C.
    Direct addressing
    D.
    Indirect register address

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  13. peed of a microprocessor is usually measured by the ________
  14. A.
    Microprocessor's Throughput
    B.
    Speed with which it performs I/P & O/P operations
    C.
    Time taken for executing a basic instruction
    D.
    Time taken for processing a small operation

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  15. Which of the following is an 8085 hardware interrupt
  16. A.
    TRAP
    B.
    RST 6.5
    C.
    RST 7.5
    D.
    All the above

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  17. Which of the following flag register doesn't belong to 8085
  18. A.
    Carry flag
    B.
    Sign flag
    C.
    Zero flag
    D.
    One flag

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  19. Which of the following instruction that sets the carry flag
  20. A.
    CY Set
    B.
    STR
    C.
    STC
    D.
    Set CY

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