Answer:
I don't have a Apple, but I suggest you either contact Apple Help, or go to settings and see if you can reset it.
Add-on:
I hope this helped you at all.
Answer:
IPO means Input - Process - Output
Explanation:
The IPO model means that a computer program is given an input to process, it processes the given input and return an output as the result.
Do you have any answer choices?
Right click on the line separating the two columns, and you should be able to select "add column"