ELI5: Explain Like I'm 5

Deterministic system

A deterministic system is a system where the same inputs will always give the same output. An easy way to think about it is like a recipe. For example, if a recipe says to mix a cup of flour, some sugar, and some butter, if you mix those ingredients together, you will always get the same result every time – a cake! This is also true for deterministic systems – they always give the same result, no matter what inputs you give them.