I think your barking up the wrong tree.
If computers of the 1960's had anything like the malware audience that modern computers have, i doubt they would have performed any better security wise, and probably a lot worse. mainframes didnt have anything like the hackers going after them they do now, both for Communication (Most of them had little or no outside connectivity), and knowledge reasons. The internet has lowered the bar on IT knowledge a lot. (This is both good and bad IMHO, but probably more good)
All OSs since Windows NT have had memory management. pretty much all malware *HAS* to rely on bugs in the OS to take control because of this. This is why exploits for Linux, Mac and Windows are not generally interchangeable. All the hardware that he talks about IS included on modern chips and used.
What this article demonstrates is the author's total lack of knowledge about security, old computers and modern technology.