When he talks about the "computational models of language" that ruled in the 80s, is he referring perhaps to stuff like Montague semantics? https://plato.stanf

When he talks about the "computational models of language" that ruled in the 80s, is he referring perhaps to stuff like Montague semantics? https://plato.stanford.edu/entries/montague-semantics/ https://plato.stanford.edu/entries/montague-semantics/ Or is Montague semantics merely a descriptive framework without practical applications? What were the main "practical" approaches for natural language understanding back then?