Q. Parallel adder is

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Q. An 8 bit binary number is to be entered into an 8 bit serial shift register. The number of clock pulses required is

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Q. Assertion (A): CMOS devices have very high speed.

Reason (R): CMOS devices have very small physical size and simple geometry.

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Q. Octal number 12 is equal to decimal number

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Q. Hexadecimal number E is equal to binary number

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Q. Decimal number 46 in excess 3 code =

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Q. Logic hardware is available only in NAND and NOR.

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Q. A 4 input AND gate is equivalent to

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Q. Assertion (A): TTL is a very popular logic in SSI and MSI category.

Reason (R): In Schottky TTL the power dissipation is less than in ordinary TTL.

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Q. FF₁₆ when converted to 8421BCD =

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Q. ECL has high switching speed because the transistors are

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Q. Karnaugh map can not be drawn when the number of variables is more than 4

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Q. A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is

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Q. If memory chip size is 256 x 1 bits, the number of chips required to make 1 k byte memory is

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Q. Computers use RC circuit for edge triggering.

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Q. The function Y = AC + BD + EF is

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Q. Assertion (A): A multiplexer can be used for data routing.

Reason (R): A multiplexer has one input and many outputs.

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Q. TTL is used in electronic calculators.

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Q. Inverter 74 LS04 has following specifications I0H max = - 0.4 mA, I0L max = 8 mA, IIH max = 20 μA, IIL max = 0.1 mAThe fan out of this inverter is

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Q. A 4 bit ripple counter starts in 0000 state. When the counter reads 0010 the number of clock pulses which have occurred is

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