Some of the same articles, but with updates and added reader comments.
(I posted Amazon, but there is a ton on the used market)
This is a super minor correction on my part, but this is a weird phrasing because "the ACM" is a huge organization that publishes proceedings for a great range of interests --- it isn't a venue in itself. The name of the venue you're looking to reference is Communications of the ACM, more commonly just referred to as Communications or CACM.
As an aside, Communications is a sort of unique venue for publication. The submissions are peer-reviewed, but the nature of the submissions is more similar to a blog post or editorial article than traditional papers you'll find in other proceedings from conferences and journals (and, indeed, the ACM refers to CACM as a "magazine"). It makes for good "fun" reading!
To Vardi's credit (the previous CACM EIC), CACM clawed back some of its technical chops in the 2010s. I wouldn't claim it's near the quality of 1970s CACM, but it actually has technical content in it again. Equations, even, gasp!
You are correct, and I'll deny having a 1978 copy of the SIGPLAN (Programming Languages) Conference docs on the history of some of the languages that were popular then. :-)