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Digital Electronics

Digital Electronics
Counter is a

  none.
  sequential circuit.
  combinational circuit.
  both.

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

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Digital Electronics
AND-OR realization of a combinational circuit is equivalent to

 NOR-NAND realization
 NAND-NAND realization
 NAND-NOR realization
 NOR-NOR realization

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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
 EAROM
 ROM
 PROM

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Digital Electronics
Which of the following is a self-complementing code?

 Hamming code
 Gray code
 XS-3 code
 cyclic code

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Digital Electronics
How many stable state/states present in flip-flop ?

 4
 2
 3
 1

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