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Digital Electronics

Digital Electronics
Which of the following is 2’s complement of +12?

 01110011
 00001100
 00001000
 00000011

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Digital Electronics
The NAND-NAND realization is equivalent to

 AND-OR realization
 OR-AND realization
 NOT-OR realization
 AND-NOT realization

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 nibble
 bit
 byte
 word

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are different
 The inputs are equal
 All inputs are LOW
 All inputs are HIGH

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 0
 w = 0,y = 1,z = 1
 w = 1,y = 1,z = 1

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Digital Electronics
Counter is a

  none.
  combinational circuit.
  both.
  sequential circuit.

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