Eli5 Why softwares need to reprogrammed to work on other operating systems or CPUs?

Question

Eli5 Why softwares need to reprogrammed to work on other operating systems or CPUs?

In: Technology

Answer 1

Let’s say the Xbox has program commands written in English. PlayStation, in Japanese. You would have to translate your directions for how to make the game work between those two languages. They use different instructions for the same thing. So it’s the same, but a different language. So many things can be “automatically” translated by a computer for you. No problem. But some things require a programmer’s attention to rewrite the instructions for clarity.