Both of these acronyms are misspelled when you insert an extraneous apostrophe:
"EPROM's are PROM's"
as YOU have repeatedly done. They are misspelled unless, perhaps, you mean "belonging to the EPROM are belonging to the PROM" or perhaps it is a contraction of "EPROM is are PROM is". But you cannot mean those because they would not fit the context. Ergo, they are misspelled.
Did you sleep throug English as well?
Perhaps the EPROMs and PROMs possess something relevant to his point.
Nah.
You'll probably want an 'h' at the end of throug. ;O)
But at least when this is pointed out to you, you won't issue a blanket, and blank, denial of the correct spelling.
You are such a blowhard know-it-all.
That would be a punctuation error, not a spelling error.
If you are hoping to become a spelling error Nazi troll, you are going to have to try a lot harder.
Were you born a blowhard know-it-all wannabe or did you study? Elementary school children know the different between spelling and punctuation.
Isn't it funny when a spelling Nazi troll makes a spelling error - especially when they make a spelling error in a message where they are attacking somebody else's spelling.