Q. Minimum number of J-K flip-flop needed to construct a BCD counter is

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Q. The following switching functions are to be implemented using a decoder

1. f1 = ∑m (1, 2, 4, 8, 10, 14)
2. f2 = ∑m (2, 5, 9, 15)
3. f3 = ∑m (2, 4, 5, 6, 7)

The minimum configuration of decoder is

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Q. TTL circuit with active pull up is preferred because of its suitability for

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Q. A parity check usually can detect

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Q. Which of the following is 'synchronous'?

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Q. TRAP is __________ whereas RST 7.5, RST 6.5, RST 5.5 are __________ .

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Q. For a binary half subtractor having two inputs A and B the correct sets of logical expressions for the outputs D (A - B) and X = Borrow are

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Q. What is the gray code word for EX-OR the binary number 101011?

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Q. In a positive edge triggered JK flip flop, J = 1, K = 0 and clock pulse is rising Q will

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Q. A 16 bit binary adder has

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Q. Digital circuits mostly use

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Q. What does the B register contain after the first MOV B, A has been executed?

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Q. Program counter in a digital computer

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Q. __________ switch, a T flip-flop is used as __________ switch, a T flip-flop is used as switch

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Q. In a three variable K map four adjacent cells give

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Q. In 2 out of 5 code, decimal number 8 is

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Q. In 8085 microprocessor, even after a Reset operation which of the following interrupts remains enabled?

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Q. A decoder can be used as a demultiplexer.

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Q. ADC 0804 is a

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Q. Assertion (A): BCD code is used in pocket calculators

Reason (R): BCD code is slower than binary.

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