Q. 1274₁₆ - 3A7₁₆ = __________ .

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Q. BCD number 1100111 = __________ ₁₀

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Q. When microprocessor processes both positive and negative numbers, the representation used is

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Q. An AND gate has four inputs. One of the inputs is low and other inputs are high. The output

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Q. A 4 bit down counter can count from

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Q. Assertion (A): In computers the data is stored in hexadecimal form

Reason (R): Hexadecimal representation is short as compared to binary representation.

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Q. Using 2's complement, the largest positive and negative number which can be stored with 8 bits are

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Q. Three Mod-16 counters are connected in cascade. The maximum counting range is

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Q. Assertion (A): XOR gate is not universal gate.

Reason (R): It is not possible to realize any Boolean function using XOR gates only.

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Q. The number of logic devices required in a Mod-16 synchronous counter are

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Q. A 2 bit BCD D/A converter is a weighted resistor type with ER = 1V, R = 1 MΩ and Rf = 10KΩ then Resolution in percent and volt is __________ .

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Q. The number of bits in EBCDIC is

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Q. With four Boolean variables, how many Boolean expressions can be performed?

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Q. A + (B . C) =

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Q. To count 1000 bottles in a milk plant, the minimum number of flip flops requires is

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Q. Decimal 8 in excess-3 code =

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Q. The inputs to a 3 bit binary adder are 111₂ and 110₂. The output will be

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Q. The input to a parity detector is 1001. The output is

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Q. A 4 bit modulo 16 ripple counter uses JK flip-flops. If the propagation delay of each FF is 50 ns. The max. clock frequency that can be used is equal to

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Q. As the number of flip flops are increased, the total propagation delay of

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