Keep in mind this article is from a British source and they tend to associate the word Queue to mean what Americans call a Line. So when he is saying a &#x27;LIFO Queue&#x27; he means a &#x27;LIFO Line&#x27;.<p>And you&#x27;re right, a Stack is a Comp Sci term. You&#x27;re assuming this guy is Computer Scientist, which may not be true (most people are not).