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Hey listen folks, whatever. I believe that a non-computer example will be the key to understanding this concept for some. Both of the articles content addressable memory, as well as this one state that they are forms of ""computer"" memory. That just is not the case in principle. In principle, the index card is also an example, and an excellent one at that. My guess is, that others with a bigger investment in the article will have their way with it. Please keep in mind that there is a world beyond computers for many of these computing concepts as you do so. Be well,   "