bit_user :
If we give him the benefit of the doubt, then we should assume he was talking about gaming resolutions. I had a XGA (1024x768) card + monitor in about 1991, but that doesn't mean I could play any games at that resolution.
According to the article, he was only there for 17 years though, which would have been around 2001. In 2001, you could even play many games on a system with Intel integrated graphics at a resolution of 800x600 or higher. I can't image many people were gaming at 320x240 at the time, let alone considering it "high res". 640x480 would have probably been the bare minimum anyone would want to play PC games at, and even that would have been considered "low res" for PC games at the time.