Q. Minimum number of 2-input NAND gates required to implement the function F = (x̅ + y̅) (Z + W) is

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Q. Which device has one input and many outputs?

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Q. A carry look ahead adder is frequently used for addition because

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Q. In register index addressing mode the effective address is given by

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Q. AB + AB̅ =

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Q. In a BCD to 7 segment decoder the minimum and maximum number of outputs active at any time is

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Q. A three state switch has three outputs. These are

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Q. Maxterm designation for A + B + C is

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Q. 1's complement of 11100110 is

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Q. The resolution of an n bit DAC with a maximum input of 5 V is 5 mV. The value of n is

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Q. 2's complement of binary number 0101 is

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Q. An OR gate has 4 inputs. One input is high and the other three are low. The output

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Q. Decimal number 10 is equal to binary number

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Q. Both OR and AND gates can have only two inputs.

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Q. An AND gate has two inputs A and B and one inhibit input 3, Output is 1 if

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Q. The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is

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Q. A JK flip flop has tpd= 12 ns. The largest modulus of a ripple counter using these flip flops and operating at 10 MHz is

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Q. The basic storage element in a digital system is

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Q. In a ripple counter,

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Q. The access time of a word in 4 MB main memory is 100 ms. The access time of a word in a 32 kb data cache memory is 10 ns. The average data cache bit ratio is 0.95. The efficiency of memory access time is

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