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Digital Electronics

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

  J-K FF.
  S-R FF.
  D FF.
  T FF.

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Digital Electronics
In a read-only memory information can be stored

 by the user only once during its life time
 by the user a number of times
 at the time of fabrication
 in any of the above ways depending upon the type of memory

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 011100001
 10101111
 00011111
 11100000

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 X-OR gate followed by an inverter
 inverter followed by an X-OR gate
 complement of a NOR gate
 NOT gate followed by a NOR gate

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code converter
 code decoder
 code encoder
 coder

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

 > 10,000
 50,000 to 99,999
 < 10,000
 10,000 to 99,999

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MORE MCQ ON Digital Electronics

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