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Digital Electronics

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

 X-OR
 X-NOR
 NOR
 NAND

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Digital Electronics
In ULSI, the number of gate circuits per chip is

 1,00,000 to 10,00,000
 > 1,00,000
 50,000 to 99,999
 > 50,000

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

 11000110
 00000001
 00111001
 01000110

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Digital Electronics
The fast logic family is

  TRL.
  TTL.
  DRL.
  ECL.

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Digital Electronics
NAND. gates are preferred over others because these

provide maximum density in a chip.
have lower fabrication area
can be used to make any gate
consume least electronic power

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Digital Electronics
The 1’s complement of 11010111 is

 10101000
 00101000
 11101000
 10101000

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