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Digital Electronics

Digital Electronics
The inverter is ___________

None of these
AND gate
OR gate
NOT gate

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Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m-1
 2m
 2m+1

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Digital Electronics
Counter is a

  none.
  both.
  sequential circuit.
  combinational circuit.

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

All of these
 PROM
 EAROM
 ROM

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Digital Electronics
Which one of the following is 2’s complement of -68?

 11000100
 01111100
 10111100
 00111100

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Digital Electronics
A + Ā is equal to

 Ā
 A
 1
 0

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