This is basically the answer. Note that a lot of the content that Jack posted on his site or in the newsletter was written years, if not decades ago in one of

This is basically the answer. Note that a lot of the content that Jack posted on his site or in the newsletter was written years, if not decades ago in one of his books or when he was writing for "Embedded Systems Programming" magazine. He was (completely retired last year) pretty good about only reposting content that was still relevant, but every so often you'd see something that was now completely unnecessary.