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ECE :: Microprocessors

  1. Consider the following mnemonics

    1. MOV
    2. ADD
    3. LXI
    Which of the above are valid for 8085?

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

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  3. A memory system has a 9 chips. If MTBF of one clip is 900 000 hours, MTBF of complete memory system is

  4. A.
    900000 hours
    B.
    100000 hours
    C.
    8100000 hours
    D.
    1800000 hours

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  5. If X = - 285.56 and the Pascal write statement used is WRITE (X : 8). Then the print out will appear as

  6. A.
    -285.560
    B.
    -2.85 E + 02
    C.
    -2.85560 E + 02
    D.
    -2.8 E + 02

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  7. For the Infix expression A + B - C + D the Postfix notation is

  8. A.
    AB + C - D +
    B.
    + AB - C + D
    C.
    AB - C + D
    D.
    None of the above

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  9. Which of the following is also called handshaking programmed data transfer?

  10. A.
    Synchronous transfer
    B.
    Asynchronous transfer
    C.
    Interrupt driver transfer
    D.
    Both (a) and (c)

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  11. Which of the following is invalid in Basic?

  12. A.
    A ** B - C
    B.
    5.2 ** 4.3
    C.
    5.2 ** (- 4.3)
    D.
    (- 5.2) ** (4.3)

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  13. An arithmetic statement in C must be

  14. A.
    integer mode arithmetic statement
    B.
    real mode arithmetic statement
    C.
    mixed mode arithmetic statement
    D.
    any of the above

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  15. In EPROM integrated dose is defined as

  16. A.
    UV light intensity x exposure time in seconds
    B.
    UV light intensity / exposure time in seconds
    C.
    exposure time in seconds / UV light intensity
    D.
    none of the above

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  17. MS outlook is a software for DTP.

  18. A.
    True
    B.
    False

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  19. In 8086 a word OA 50 FH is stored in 02 and 03 memory locations. Then

  20. A.
    OFH is stored at location 02 and 0 A 5 at location 03 and address of word is 02
    B.
    OFH is stored at location 03 and 0 A 5 at location 02 and address of word in 02
    C.
    OFH is stored at location 02 and 0 A 5 at location 03 and address of word is 03
    D.
    OFH is stored at location 03 and 0 A 5 at location 02 and address of word is 03

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