[wduquette]

Borland did a lot of thrashing around that point. They were a great language company, but they wanted to be Microsoft. At one point they had their own spreadsheet (which was pretty good, but DOS only) and their own database manager. And some of their language products were weird (Turbo Prolog, which, so Prolog people tell me, wasn't quite Prolog).

[pjmlp]

I see the same pattern in JetBrains now, with Kotlin being their Delphi, trying to put it everywhere, instead of building on the strenghts of JVM/ART.

Everyone had their Lotus competion product on those days, Excel still wasn't the winner.

When Turbo Prolog came to be, every Prolog was a bit different. Even a decade later trying to write portable Prolog code between SWI and SICStus wasn't properly easy.