COMBINATIONAL circuit that selects BINARY information from one of many input lines and DIRECTS it is to single output lines.The selection of particular input lines is CONTROLLED by a set of selection lines.\(Y = {\bar S_1}{\bar S_0}\;{I_0} + {\bar S_1}{S_0}{I_1} + {S_1}{\bar S_0}{I_2} + {S_1}{S_0}{I_3}\)APPLICATION:\(O = {\bar S_1}{\bar S_0}{I_0} + {\bar S_1}{S_0}{I_1} + {S_1}{\bar S_0}{I_2} + {S_1}{S_0}{I_3}\)\(O = {\bar S_1}{\bar S_0}\left( 0 \right) + {\bar S_1}{S_0}\left( 1 \right) + {S_1}{\bar S_0}\left( 1 \right) + {S_1}{S_0}\left( 0 \right)\)\(O = {\bar S_1}{S_0} + {S_1}\;{\bar S_0}\)O = S1 ⊕ S0