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ECE :: Microprocessors

Microprocessors - Section 1
Microprocessors - Section 2
Microprocessors - Section 3
Microprocessors - Section 4
Microprocessors - Section 5
Microprocessors - Section 6
Microprocessors - Section 7
Microprocessors - Section 8
Microprocessors - Section 9
Microprocessors - Section 10
Microprocessors - Section 11
Microprocessors - Section 12
Microprocessors - Section-13

  1. Fortran 77 has six arithmetic operators.

    2. A.
    True
    B.
    False

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  2. Windows can run several tasks simultaneously.

    3. A.
    True
    B.
    False

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  3. Assertion (A): 1C 74181 is an ALU in TTL 7400 series.

    Reason (R): 1C 74181 can accept two 4 bit words and can perform any one of possible 16 arithmetic or logic operations.

    4. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  4. The instruction LDA 20 in 8085 means

    5. A.
    contents of memory location 20 are fetched into the accumulator
    B.
    the value 20 is fetched into accumulator
    C.
    either (a) or (b)
    D.
    neither (a) nor (b)

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  5. Intel 2004 is a

    6. A.
    ROM
    B.
    Volatile RAM
    C.
    NV RAM
    D.
    None of the above

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  6. The programming language in which Excel records the macro code is

    7. A.
    basic
    B.
    visual basic
    C.
    video basic
    D.
    basic 2

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  7. The 8085 instruction LDA FFA is an example of

    8. A.
    Direct addressing
    B.
    Register addressing
    C.
    Immediate addressing
    D.
    Register indirect addressing

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  8. A mP contains 2 MHz crystal. The time taken to complete instructions with 1000 cycles is

    9. A.
    2 ms
    B.
    1 ms
    C.
    2 nx
    D.
    1 ns

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  9. Consider the following statement in Fortran 77

    READ *, (X.(I), I = 0, 4)

     Which of the following is correct?

    10. A.
    3 values would be read and stored in X (0), X (1), X (2)
    B.
    4 values would be read and stored in X (0), X (1), X (2), X (3)
    C.
    5 values would be read and stored in X (0), X (1), X (2), (3)(4)
    D.
    5 values would be read and stored in X (I), X (2), X (3), X (4), X (5)

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  10. Which of the following methods does not cause any reduction in instruction length?

    11. A.
    Using program counter
    B.
    Common source and destination address
    C.
    Implicit source and destination address
    D.
    Machine language programming

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