Can someone explain input and outputs for me please

Question

input for python 3

Answer 1

input = inputting something
output = outputting something
If you are looking for syntax, I don't know Python, but you could probably look at almost any python code to figure it out. Or you could just look at the tutorial (What SL is for)

Answer 2

input is something you give in to the system, output is something the system gives out.
Its like you playing a video game, for example :
If you are playing a FPS game, your input would be a left mouse button, the output would be your gun firing.