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Digital Electronics

Digital Electronics
Which of the following is a self-complementing code?

 XS-3 code
 Hamming code
 cyclic code
 Gray code

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Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 1.
 both are same
 2.
 none

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Digital Electronics
In the toggle mode a JK flip-flop has

 J = 1, K = 0.
 J = 0, K = 1.
 J = 0, K = 0.
 J = 1, K = 1.

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Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 Last Bit
 First Bit
 LSB, Least Significant Bit
 MSB, Most Significant Bit

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 OR
 AND
 NOT
 NAND

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Digital Electronics
A NAND gate is called a universal logic element because

All the minization techniques are applicable for optimum NAND gate realization
It is used by everybody
Any logic function can be realized by NAND gates alone
Many digital computers use NAND gates.

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