71. Which of the following is the Boolean function for Majority Voting, assuming A, B, C are inputs and Y is output?
72. Flash ADC is
73. Find the faulty even parity code
1. 100110010
2. 011101010
3. 10111111010001010
1. 100110010
2. 011101010
3. 10111111010001010
74. In Boolean Algebra A. $$\overline {\text{A}} $$ is equal to
75. The inverter 74 AL S01 has the following specifications:
IOH max = -0.4 mA, IOL max = 8 mA, IIH max = 20 µA, IIL max = -0.1 mA.
The fan out based on the above will be
IOH max = -0.4 mA, IOL max = 8 mA, IIH max = 20 µA, IIL max = -0.1 mA.
The fan out based on the above will be
76. What is the hexadecimal equivalent of this binary number (1110)2?
77. In the circuit shown below Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5 V, X and Y are digital signals with 0 V as logic 0 and Vcc as logic 1, the Boolean expression for Z is

78. Consider the following digital circuits:
1. Multiplexers
2. Read Only Memories
3. D-latch
4. Circuit as shown
Which of these come under the class of combinational circuits?
1. Multiplexers
2. Read Only Memories
3. D-latch
4. Circuit as shown
Which of these come under the class of combinational circuits?

79. If (2.3)base 4 + (1.2)base 4 = (y)base 4, what is the value of y?
80. By using only 4 : 1 MUX, it is possible to realize:
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