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Digital Electronics

Digital Electronics
Which of the following is 1’s complement representation of +57

 00000001
 00111001
 01000110
 11000110

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Digital Electronics
An X-OR gate gives a high output

 if it has even number of 0s
 if there are odd number of 1s
 for odd decimal value.
 if the decimal value of digital word is even

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Digital Electronics
How many output is high of NOR GATE ?

 1
 2
 3
 4

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 inverter followed by an X-OR gate
 complement of a NOR gate
 NOT gate followed by a NOR gate
 X-OR gate followed by an inverter

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 NAND
 none of these
 OR
 NOR

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Digital Electronics
Which of the following operations is commutative but not associative?

 AND
 NAND
 OR
 X-OR

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