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Digital Electronics

Digital Electronics
Which of the following gates is known as a coincidence detector?

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

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 a NAND or a NOR
 an AND or an X-NOR
 an OR or a NAND
 an X-OR or an X-NOR

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Digital Electronics
In which code do the successive code characters differ in only one position?

 XS-3 code
 Gray code
 8421 code
 Hamming code

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Digital Electronics
In VLSI, the number of gate circuits per chip is

 50,000 to 99,999
 > 10,000
 < 10,000
 10,000 to 99,999

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Digital Electronics
Which one of the following is not a vectored interrupt?

 TRAP.
 INTR.
 RST 6.5.
 RST 7.5.

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Digital Electronics
A half adder has

 1 input and 1 output
 2 inputs and 1 outputs
 2 inputs and 2 output
 1 input and 2 outputs

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