276. How many inputs and outputs does a full-adder have—
     

1. 1. Two inputs, two outputs
      

   
   
   

   2. Two inputs, one output
      

   
   
   

   3. Three inputs, two outputs
      

   
   
   

   4. Two inputs, three outputs
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   A full-adder have three inputs and two outputs.

   Correct Option: C

   A full-adder have three inputs and two outputs.

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277. The difference bit output of a half-

1. 1. subtractor is the same as—
      

   
   
   

   2. Difference bit output of a full-subtractor
      

   
   
   

   3. Sum bit output of a half-adder
      

   
   
   

   4. Sum bit output of full-adder
      

   
   
   

   5. Carry bit output of a half-adder
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   The difference bit output of a half-subtractor is the same as sum bit output of a half-adder

   Correct Option: B

   The difference bit output of a half-subtractor is the same as sum bit output of a half-adder

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278. Which of the following statement is not correct? Conversion of Excess-3 code to BCD can be achieved by using—
     

1. 1. Discretic gate

   
   
   

   2. 4: 16 demultiplexer
      

   
   
   

   3. A four-bit full adder
      

   
   
   

   4. A four-bit half adder

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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