Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Describe block diagram of digital comparator and write truth table of 2 bit comparator.
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Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A = B or A > B or A < B. Depending on the result of comparison one of these outputs will go high.

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