| 62. | It is a very useful combinational circuit used in communication systems. |
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Answer: (d).Both a and b
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| 63. | This converter deals with converting binary code to gray code |
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Answer: (a).Binary to Gray Code Converter
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| 64. | It compares two n-bit values to determine whether one of them is greater or if they are equal. |
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Answer: (c).Comparator
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| 65. | It is a circuit, which has a number of input lines and selection lines with one output line. |
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Answer: (b).Multiplexer
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| 66. | It is a circuit, which can remember values for a long time or change values when required. |
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Answer: (d).Memory Element
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| 67. | It is a sequential circuit that cycles through a sequence of states. |
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Answer: (c).Counter
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| 68. | It is a counter where the flip-flops do not change states at exactly the same time, as they do not have a common clock pulse. |
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Answer: (a).Asynchronous Ripple Counter
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| 69. | It is a bi-directional counter capable of counting in either of the direction depending on the control signal |
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Answer: (d).Both a and b
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| 70. | In this logic, output depends not only on the current inputs but also on the past input values. It needs some type of memory to remember the past input values |
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Answer: (c).Sequential Circuit
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