A 4:1 multiplexer which takes 4 input and give 1 output . A Data Selector.
First 4 logic sources are named as
I0
I1
I2
I3
Last two logic sources are select lines s1 and s0
The LED responds output for
(I0.s1'.s0')
(I1.s0'.s1)
(I2.s0.s1')
(I3.s1.s0)
However there are individual LED outputs too to confirm each individual output at a time.
