We have seen how the entropy of a system is derived as the surprise element of a system. The higher the entropy, the higher the surprise, ignorance or the degree of disorder of the system.
As an extreme example, the entropy of a double-headed coin is zero as it contains no information, i.e., always lands on heads!
On the other hand, a fair coin (50-50) produces a non-zero entropy. The full spectrum of entropy for a coin toss is: