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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. In 8085

    2. A.
    P flag is set when the result has even parity
    B.
    P flag is set when the result has odd parity
    C.
    P flag is reset when the result has odd parity
    D.
    P flag is reset when the result has even parity

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  2. Some words like READ, WRITE, STOP etc. cannot be used as variable names in Fortran 77.

    3. A.
    True
    B.
    False

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  3. Which of the following 8085 instructions do not effect CY flag?

    4. A.
    SEE M
    B.
    SEE R
    C.
    DCRM
    D.
    ADC M

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  4. A compiler converts a high level computer program into machine language program.

    5. A.
    True
    B.
    False

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  5. In 8085, the pairing of registers B, C, D, E, H, L is

    6. A.
    B - C, D - E, H - L
    B.
    B - D, C - E, H - L
    C.
    B - C, D - L, H - E
    D.
    B - H, D - E, C - L

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  6. Assertion (A): PC-XT is a personal computer.

    Reason (R): PC-XT uses a floppy drive and has a medium sized hard disc.

    7. 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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  7. In Intel 8085, the integer range per word length is

    8. A.
    -128 to 127
    B.
    -127 and 128
    C.
    -64 and 63
    D.
    -63 and 64

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  8. Assertion (A): Structures are useful in DBMS.

    Reason (R): Structures are very large numbers of applications besides DBMS.

    9. 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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  9. If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

    10. A.
    a larger floating point number
    B.
    a smaller floating point number
    C.
    either (a) or (b) depending on the actual number
    D.
    a negative floating point number

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  10. The use of microprocessor control in automobiles results in

    11. A.
    improved fuel economy
    B.
    improved car control
    C.
    advanced information system for driver
    D.
    all of the above

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