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Digital Electronics

Digital Electronics
Which of these circuits have higher gate complexity 1. Carry look ahead adder 2. Ripple carry adder

 2
 1
 none
 both have same

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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.
  S-R FF.
  J-K FF.
  T FF.

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Digital Electronics
Unit distance code is the other name of

 sequential code
 cyclic code
 self-complementing code
 XS-3 code

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NOR gate
 OR gate
 NAND gate
 X-OR gate

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Digital Electronics
What is the difference between xor gate and exor gate.

 xor gives one output while exor gives two
 xor gives two outputs while exor gives one
 both are same
 xor and exor are complement of each other

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

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

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