At this point I would typically google, but let me ask: I have never heard of Okidata or Brother. Could you explain how this thread reminded you of this conversation and could you describe Okidata and Brother, please?
Okidata and Brother are two brands of printers, not computers. The point of his story is that the kids were talking about stuff they didn't have a clue about, which would sound stupid to anyone who did know about it. Someone would look equally stupid throwing around business terms whose meanings they were ignorant of.