2-Bit Comparator:-

A 2-bit comparator compares two binary numbers, each of two bits and produces their relation such as one number is equal or greater than or less than the other.

Block Diagram:-

The first number A is designated as A = A1A0 and the second number is designated as B = B1B0. This comparator produces three outputs as G (G = 1 if A>B), E (E = 1, if A = B) and L (L = 1 if A<B).

Truth Table:-

K-Map:-

*Solving the equations I got:-

Diagram:-

*formed using simulator provided