Question

The output y of two bit comparator is logic 1 whenever the 2-bit input A is smaller than the 2-bit input B.the number of combinations for which the output is logic 1,is *​

Answer 1

Given : The output y of two bit comparator is logic 1 whenever the 2-bit input A is smaller than the 2-bit input B.

To Find : the number of combinations for which the output is logic 1

Solution:

2-bit input A   and Input B each  can be in  4 way

00

01

10

11

input A is smaller than the 2-bit input B

input A          input B

00                  01  , 10  , 11

01                    10 , 11

10                    11

11                      not possible

Hence 3 + 2 + 1 + 0  = 6 ways

6  number of combinations for which the output is logic    1  

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