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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

  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

  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

  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

  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)

  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)

  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

  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

  17. MS outlook is a software for DTP.

  18. A.
    True
    B.
    False

  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