25. How is a Mealy machine different from a Moore machine?

26. What does an algorithmic state machine offer that is not provided by a Moore or a Mealy machine?

27.Construct a truth table for the following:

a) yz + z(xy)'

b) x(y' +z) + xyz

c) (x+y) + (x'+y)

28. Construct a truth table for the following:

a) xyz + x(yz)' + x'(y + z) + (xyz)'

b) (x + y') + ( x' + z') + ( y' + z')