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Digital Electronics

Digital Electronics
What is the 2’s complement of 10110000?

 10001110
 01001111
 01010000
 10110000

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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 X-OR or an X-NOR
 an OR or a NAND

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Digital Electronics
16’s complement of BABA is?

 4546
 4446
 4544
 4445

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Digital Electronics
The complement of a function A is

 1
 Ā
 0
 A

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

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

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Digital Electronics
What is the requirement of fullsubstractor circuit ?

 Two inputs and two outputs
 Two inputs and three outputs
 Three inputs and two outputs
 Three inputs and one output

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