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Digital Electronics

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

 NAND gate
 X-OR gate
 X-NOR gate
 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?

 two
 four
 one
 three

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Digital Electronics
Each term in the standard SOP form is called a

 don’t care
 literal
 minterm
 maxterm

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

 00000001
 11000110
 00111001
 01000110

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Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

 256.
  8.
 16.
  255.

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NOR
 X-NOR
 AND
 NAND

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