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Digital Electronics

Digital Electronics
Which of the following is known as a mod-2 adder?

 NOR gate
 NAND gate
 X-OR gate
 X-NOR gate

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 one
 two
 three
 four

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Digital Electronics
Which of the following is 1’s complement representation of -34?

 10100010
 01011101
 11011110
 11011101

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Digital Electronics
Which of the following logic circuits is the fastest ?

 All have same speed.
 RTL.
 DTL.
 TTL.

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

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

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Digital Electronics
In Boolean algebra, OR is represented by

 +
 ×
 -
 /

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