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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

  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

  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

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

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

  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

  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

  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

  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

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