Implementing three state machine on hardware

Hi all,
Today, I will explain how the three state machine can be achieved on hardware.
We all know there are two states in a machine..... 0, off state, and 1, on state.
There is one neglected and not much used state called the high impedance state. This state could be used as 'May be' state.
And hence we can implement fuzz on hardware level.
I am happy to answer all your doubts.
Thanking you,
Regards,
Abhishek Singh