As I was scrolling down, I saw only the top part of the the DDR RAM one. As someone who grew up in the '70s and reached adulthood in the '80s, I assumed it would be a play on DDR meaning Deutsche Demokratische Republik (i.e., the former East Germany), which we saw as a country designation in the Olympics and other international sporting events. It took me a while to figure out what this one meant.
Also liked the first two and the Spanish one.