My dad has always bought Intel and Microsoft and he doesn't want to entertain anything else. Now that he's retired, he's _finally_ asking me about alternatives

My dad has always bought Intel and Microsoft and he doesn't want to entertain anything else. Now that he's retired, he's _finally_ asking me about alternatives (he asked me about ChromeOS and Google Docs), but his purchase decisions are still Intel + Microsoft. To be fair, they're still close enough that it doesn't _really_ matter for most people since performance will be about the same for their tasks, which is why it's so hard to get people to switch their buying patterns.