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Digital Electronics

Digital Electronics
A bubbled NOR gate is equivalent to a

 NOR gate
 AND gate
 NAND gate
 X-OR gate

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Only (II)
 Only (III)
 Both (II)&(III)
 Both (I)&(III)

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 3. XOR
 1. NOR
 2. AND
 4. NOT

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Digital Electronics
Which of the following codes is known as the 8421 code?

 BCD code
 ASCII code
 Gray code
 XS-3 code

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 n – m literals
 m – 1 literals less than the total number of variables
 n + m literals
 m + 1 literals less than the total number of variables

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Digital Electronics
A switch-tail ring counter is made by using a single D-FF, the following circuit is

  D FF.
  J-K FF.
  T FF.
  S-R FF.

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