Nice article. The small technical inaccuracies don't really matter.
You can't be accurate when you have to deal with a broader, mainstream audience. People must be able to understand what's written there, so you can speak technically, but not-so technically to be appreciated.
Anyway, articles like this one make always feel me nostalgic, but on the other hand let me think how lucky current coders are, and how crazy/heroic old ones were, having to deal with problems that are currently resolved by libraries... or by suggesting users to buy better hardware.