When computers were still using large black text oriented screens
or no screens at all, a computer only knew how to store a limited
set of characters. Then it was normal to store a name with the
more complicated characters replaced by more basic characters.
The ASCII standard was used to make communication between
multiple systems (or applications) easier. Storing characters as
ASCII needs little space and is quite strait forward.
Then DOS used CP850 and CP437 and so on to make it …