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ECE :: Microprocessors

  1. The proper exponential form of - 0.0032 in FORTRAN 77 is

  2. A.
    -3.2 E - 3
    B.
    -0.0032
    C.
    -0.00032 EI
    D.
    -0.032 E - 1

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  3. Which of the following integer expressions is correct in Pascal?

  4. A.
    - A + B + M
    B.
    A div B * mod C
    C.
    A - 4.0
    D.
    A / B + D

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  5. An advantage of memory interlacing is that

  6. A.
    a larger memory is obtained
    B.
    effective speed of memory is increased
    C.
    cost of memory is reduced
    D.
    a non-volatile memory is obtained

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  7. The number of operator to accomplish basic arithmetic in Java is

  8. A.
    4
    B.
    5
    C.
    6
    D.
    7

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  9. The signals in 8086 are classified into

  10. A.
    minimum mode and maximum mode
    B.
    decrement mode and increment mode
    C.
    low mode and high mode
    D.
    none of the above

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  11. Consider the following statements about constants in 8085

    1. The assembler treats 64 H as hexadecimal constant.
    2. The assembler treats 154 as binary constant.
    3. The assembler treats 540 as octal constant.
    4. The assembler treats 138 as decimal constant.
    Which of the above are correct?

  12. A.
    1, 2 and 3 only
    B.
    1, 3 and 4 only
    C.
    1 and 3 only
    D.
    2 and 4 only

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  13. Internally the two distinct units of 8086 are called

  14. A.
    bus interface unit and execution unit
    B.
    command unit and follow unit
    C.
    master unit and slave unit
    D.
    memory unit and operation unit

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  15. Which of the following directives in 8085 causes one byte to be reserved in the memory?

  16. A.
    D S
    B.
    D B
    C.
    D W
    D.
    E Q U

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  17. The chip 8259 is a

  18. A.
    programmable interrupt controller
    B.
    programmable peripheral interface
    C.
    I/O device
    D.
    memory chip

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  19. A computer memory is an ordered sequence of storage cells.

  20. A.
    True
    B.
    False

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