👉 Nonequivalence is a concept in computer science that refers to the behavior of programs or algorithms when they are run on different machines. In other words, it describes how two programs (or algorithms) behave differently across different execution environments. In essence, an algorithm is a sequence of instructions executed by a program to solve a problem or perform a task. The term "nonequivalence" refers to the fact that two programs or algorithms may have completely different behaviors when run on different machines. There are several