Advanced Microprocessors

Advanced Microprocessors

Easy Questions

Microprocessor

8085 Microprocessors
Advanced Microprocessors
  1. The resolution of an 8 bit A/D converter is—








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    Number of discrete steps or resolution = 2n–1, where n = number of bits.

    % resolution =
    1
    		× 100 =
    1
    		× 100 = 0.39%
    2n−128−1

    = 0.40 %
    Hence alternative (D) is the correct answer.

    Correct Option: D

    Number of discrete steps or resolution = 2n–1, where n = number of bits.

    % resolution =
    1
    		× 100 =
    1
    		× 100 = 0.39%
    2n−128−1

    = 0.40 %
    Hence alternative (D) is the correct answer.

  1. Match List-I with List-II and select the correct answer using the codes given below the list.
    LIST-I LIST-II
    Logic FamilyProperty
    (a) TTL1. Non-saturation type and high power consumption.
    (b) ECL 2. Low power consumption and high packing density.
    (c) CMOS3.High switching speed and good fan out capability.
    (d) I2L4. Bipolar logic with high packing density.








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    NA

    Correct Option: A

    NA

  1. In the given network of AND and OR gates

    f is—








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    In terms of Boolean Operation
    Output of 1 is x0 x1
    Output of 2 is (x0 x1 + x2)
    Output of 3 is (x0 x1 + x2) x3 = x0 x1 x3 + x2 x3
    Output of 4 is x0 x1 x3 + x2 x3 + x4
    Output of 5 is x0 x1 x3 x5 + x2 x3 x5 + x4 x5
    Output of 6 is x0 x1 x3 x5 + x2 x3 x5 + x4 x5 x6
    Thus for n gates connected as shown, the O/P:

    Hence alternative (D) is the correct answer.

    Correct Option: D

    In terms of Boolean Operation
    Output of 1 is x0 x1
    Output of 2 is (x0 x1 + x2)
    Output of 3 is (x0 x1 + x2) x3 = x0 x1 x3 + x2 x3
    Output of 4 is x0 x1 x3 + x2 x3 + x4
    Output of 5 is x0 x1 x3 x5 + x2 x3 x5 + x4 x5
    Output of 6 is x0 x1 x3 x5 + x2 x3 x5 + x4 x5 x6
    Thus for n gates connected as shown, the O/P:

    Hence alternative (D) is the correct answer.

  1. In the following question match each of the items (a), (b) and (c) on the left with an approximate item on the right—
    (a) A shift register can be used 1. 1. For code conversion
    (b) A multiplexer can be used 2. To generate memory chip to select
    (c) A decoder can be used 3. For parallel to serial conversion
    4. As a many to one switch
    5. For analog-to-digital conversion








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    NA

    Correct Option: B

    NA

  1. The number of bits in a binary PCM system is increased from n to n + 1. As a result, the signal to quantization noise ratio will improve by the—








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    NA

    Correct Option: C

    NA