If selection is 0 choose the first input, otherwise choose the second input
Combinational circuit that has multiple data inputs and one output, along with additional control or select inputs. The control inputs determine which of the data inputs is connected to the output.
how it works
connects one of n inputs to the output
select control signals pick one of the n sources (log2n select bits)
useful when multiple data sources need to be routed to a single destination
