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Digital Electronics

Digital Electronics
The fast logic family is

  ECL.
  DRL.
  TRL.
  TTL.

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n-1
2n
22n

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Digital Electronics
Which number system has a base of 16

 None
 Decimal
 Hexadecimal
 Octal

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Digital Electronics
XNOR followed by a NOT gate is equivalant to ________ gate

 XNOR
 OR
 NOR
 XOR

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 1 V and 5 V
 –1.5 V and – 0.5 V
 5 V and 0 V
 0 V and 5 V

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Digital Electronics
1’s complement of 17 is

 11100.
 10001.
  01110.
 10111.

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