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ECE :: Digital Electronics

Digital Electronics - Section 1
Digital Electronics - Section 2
Digital Electronics - Section 3
Digital Electronics - Section 4
Digital Electronics - Section 5
Digital Electronics - Section 6
Digital Electronics - Section 7
Digital Electronics - Section 8
Digital Electronics - Section 9
Digital Electronics - Section 10
Digital Electronics - Section 11
Digital Electronics - Section 12
Digital Electronics - Section 13
Digital Electronics - Section 14
Digital Electronics - Section 15
Digital Electronics - Section 16
Digital Electronics - Section 17
Digital Electronics - Section 18
Digital Electronics - Section 19
Digital Electronics - Section 20
Digital Electronics - Section 21
Digital Electronics - Section 22
Digital Electronics - Section 23
Digital Electronics - Section 24
Digital Electronics - section-25
Digital Electronics - Section-26

  1. Binary number 101101 when converted to its 2's complement will become

    2. A.
    0101.01
    B.
    0100.10
    C.
    0100.10
    D.
    0101.10

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  2. Assertion (A): In a BCD to 7 segment decoder the number of outputs active at one time is always the same.

    Reason (R): A decoder can be used to interface BCD input to LED display.

    3. 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 true, R is false
    D.
    A is false, R is true

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  3. The number of flags available in 6800 are

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

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  4. Microprocessors were introduced in the year

    5. A.
    1951
    B.
    1961
    C.
    1971
    D.
    1981

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  5. What is the addressing mode used in instruction MOV M, C?

    6. A.
    Direct
    B.
    Indirect
    C.
    Induced
    D.
    Immediate

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  6. For the following decimal multiplication the result are given in binary numbers, Spot the incorrect relation, if any

    7. A.
    15 x 3 = 110000112
    B.
    42 x 1/12 = 10011.1102
    C.
    7.75 x 2.5 = 10011.1102
    D.

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  7. Shift left and shift right operations occur in a calculator.

    8. A.
    True
    B.
    False

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