Although, the article is clearly for hits and sizzles.
Technically, every electronic devices are PC (personal computers).
Not really, all electronic devices are computers, but "PC" implies something about what you can use it for - it is for general purposes and should (i believe is implied in the definition) be user programable. It says nothing about architecture though. Z80, x86, POWER or Cell for that matter, they can all be stuck in a PC.